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Håkan Johansson

Tjänst: Professor
Adress: Linköpings universitet,
Institutionen för systemteknik (ISY)
581 83 Linköping
Kontor: Hus B, en trappa, korridor A mellan ingångarna 27 och 29.
Epost:
Telefon: 013-281676
Telefax: 013-139282
Håkan Johansson

Håkan Johansson received the Master of Science degree in computer science and the Licentiate, Doctoral, and Docent degrees in Electronics Systems from Linköping University, Sweden, in 1995, 1997, 1998, and 2001, respectively. During 1998 and 1999 he held a post doctoral position at Signal Processing Laboratory, Tampere University of Technology, Finland. He is currently Professor in Electronics Systems at the Department of Electrical Engineering of Linköping University. His research encompasses theory, design, and implementation of efficient and flexible signal processing systems for various purposes. He is one of the founders of the company Signal Processing Devices Sweden AB that sells advanced signal processing solutions. Prof. Johansson is the author or co-author of 4 books and some 170 international journal and conference papers. He is the co-author of three papers that have received best paper awards and he has authored two invited papers in IEEE Transactions and four invited chapters. Prof. Johansson has served as Associate Editor for IEEE Trans. on Circuits and Systems I and II, IEEE Trans. Signal Processing, and IEEE Signal Processing Letters. He is currently Associate Editor of IEEE Trans. on Circuits and Systems I and Area Editor of the Elsevier Digital Signal Processing journal.

Publications

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Journal papers
2016
Yinan Wang, Håkan Johansson, Hui Xu, Jietao Diao, "Bandwidth-efficient calibration method for nonlinear errors in M-channel time-interleaved ADCs", Analog Integrated Circuits and Signal Processing, 86(2): 275-288, 2016.
AbstractKeywordsBiBTeXDOI
2015
Yinan Wang, Håkan Johansson, Hui Xu, Zhaolin Sun, "Joint Blind Calibration for Mixed Mismatches in Two-Channel Time-Interleaved ADCs", IEEE Transactions on Circuits and Systems Part 1, 62(6): 1508-1517, 2015.
AbstractKeywordsBiBTeXDOI
Yinan Wang, Hui Xu, Håkan Johansson, Zhaolin Sun, Jacob Wikner, "Digital estimation and compensation method for nonlinearity mismatches in time-interleaved analog-to-digital converters", Digital signal processing (Print), 41: 130-141, 2015.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, Heinz Goeckler, "Two-Stage-Based Polyphase Structures for Arbitrary-Integer Sampling Rate Conversion", IEEE Transactions on Circuits and Systems - II - Express Briefs, 62(5): 486-490, 2015.
AbstractKeywordsBiBTeXDOI
Amir Eghbali, Håkan Johansson, "Design of Modulated Filter Banks and Transmultiplexers With Unified Initial Solutions and Very Few Unknown Parameters", IEEE Transactions on Circuits and Systems - II - Express Briefs, 62(4): 397-401, 2015.
AbstractKeywordsBiBTeXDOI
Anu Kalidas Muralidharan Pillai, Håkan Johansson, "Efficient Recovery of Sub-Nyquist Sampled Sparse Multi-Band Signals Using Reconfigurable Multi-Channel Analysis and Modulated Synthesis Filter Banks", IEEE Transactions on Signal Processing, 63(19): 5238-5249, 2015.
AbstractKeywordsBiBTeXDOIFulltext
Anu Kalidas Muralidharan Pillai, Håkan Johansson, "Prefilter-Based Reconfigurable Reconstructor for Time-Interleaved ADCs With Missing Samples", IEEE Transactions on Circuits and Systems - II - Express Briefs, 62(4): 392-396, 2015.
AbstractKeywordsBiBTeXDOIFulltext
Yinan Wang, Håkan Johansson, Hui Xu, "Adaptive Background Estimation for Static Nonlinearity Mismatches in Two-Channel TIADCs", IEEE Transactions on Circuits and Systems - II - Express Briefs, 62(3): 226-230, 2015.
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Håkan Johansson, Fred Harris, "Polyphase Decomposition of Digital Fractional-Delay Filters", IEEE Signal Processing Letters, 22(8): 1021-1025, 2015.
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2014
Håkan Johansson, "Relations Between Zero-IF Receiver I/Q and TI-ADC Channel Mismatches", IEEE Transactions on Signal Processing, 62(13): 3403-3414, 2014.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, Amir Eghbali, "Add-Equalize Structures for Linear-Phase Nyquist FIR Filter Interpolators and Decimators", IEEE Transactions on Circuits and Systems Part 1, 61(6): 1766-1777, 2014.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, Amir Eghbali, "Two Polynomial FIR Filter Structures With Variable Fractional Delay and Phase Shift", IEEE Transactions on Circuits and Systems Part 1, 61(5): 1355-1365, 2014.
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Amir Eghbali, Håkan Johansson, Oscar Gustafsson, Seb J. Savory, "Optimal Least-Squares FIR Digital Filters for Compensation of Chromatic Dispersion in Digital Coherent Optical Receivers", Journal of Lightwave Technology, 32(8): 1449-1456, 2014.
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Wei Jing Xu, Ya Jun Yu, Håkan Johansson, "Improved Filter Bank Approach for the Design of Variable Bandedge and Fractional Delay Filters", IEEE Transactions on Circuits and Systems Part 1, 61(3): 764-777, 2014.
AbstractKeywordsBiBTeXDOI
Amir Eghbali, Håkan Johansson, "On Efficient Design of High-Order Filters With Applications to Filter Banks and Transmultiplexers With Large Number of Channels", IEEE Transactions on Signal Processing, 62(5): 1198-1209, 2014.
AbstractKeywordsBiBTeXDOI
Amir Eghbali, Tapio Saramaki, Håkan Johansson, "Conditions for Lth-band filters of order 2N as cascades of identical linear-phase FIR spectral factors of order N", Signal Processing, 97(April), 2014.
AbstractKeywordsBiBTeXDOI
Amir Eghbali, Håkan Johansson, "A class of reconfigurable and low-complexity two-stage Nyquist filters", Signal Processing, 96: 164-172, 2014.
AbstractKeywordsBiBTeXDOI
2013
Håkan Johansson, "On FIR Filter Approximation of Fractional-Order Differentiators and Integrators", IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS, 3(3): 404-415, 2013.
AbstractKeywordsBiBTeXDOI
Anu Kalidas Muralidharan Pillai, Håkan Johansson, "Efficient signal reconstruction scheme for M-channel time-interleaved ADCs", Analog Integrated Circuits and Signal Processing, 77(2): 113-122, 2013.
AbstractKeywordsBiBTeXDOIFulltext
Amir Eghbali, Håkan Johansson, Tapio Saramaki, "A method for the design of Farrow-structure based variable fractional-delay FIR filters", Signal Processing, 93(5): 1341-1348, 2013.
AbstractKeywordsBiBTeXDOI
Muhammad Abbas, Oscar Gustafsson, Håkan Johansson, "On the Fixed-Point Implementation of Fractional-Delay Filters Based on the Farrow Structure", IEEE Transactions on Circuits and Systems Part 1, 60(4): 926-937, 2013.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, Ewa Hermanowicz, "Two-Rate Based Low-Complexity Variable Fractional-Delay FIR Filter Structures", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 60(1): 136-149, 2013.
AbstractKeywordsBiBTeXDOI
2012
Anu Kalidas Muralidharan Pillai, Håkan Johansson, "Two-rate based low-complexity time-varying discrete-time FIR reconstructors for two-periodic nonuniformly sampled signals", Sampling Theory in Signal and Image Processing, 11(2-3): 195-220, 2012.
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Håkan Johansson, "Fractional-Delay and Supersymmetric Mth-Band Linear-Phase FIR Filters Utilizing Partially Symmetric and Antisymmetric Impulse Responses", IEEE Transactions on Circuits and Systems - II - Express Briefs, 59(6): 366-370, 2012.
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Amir Eghbali, Håkan Johansson, Per Löwenborg, "A Class of Multimode Transmultiplexers Based on the Farrow Structure", Circuits, systems, and signal processing, 31(3): 961-985, 2012.
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Zaka Ullah Sheikh, Håkan Johansson, "Efficient Wide-Band FIR LTI Systems Derived Via Multi-Rate Techniques and Sparse Bandpass", IEEE Transactions on Signal Processing, 60(7): 3859-3863, 2012.
AbstractKeywordsBiBTeXDOI
Zaka Ullah Sheikh, Håkan Johansson, "A Technique for Efficient Realization of Wide-Band FIR LTI Systems", IEEE Transactions on Signal Processing, 60(3): 1482-1486, 2012.
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Amir Eghbali, T. Saramaki, Håkan Johansson, "On two-stage Nyquist pulse shaping filters", IEEE Transactions on Signal Processing, 60(1): 483-488, 2012.
AbstractKeywordsBiBTeXDOI
2011
Zaka Ullah Sheikh, Håkan Johansson, "A Class of Wide-Band Linear-Phase FIR Differentiators Using a Two-Rate Approach and the Frequency-Response Masking Technique", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 58(8): 1827-1839, 2011.
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Amir Eghbali, Håkan Johansson, Per Löwenborg, "Reconfigurable Nonuniform Transmultiplexers Using Uniform Modulated Filter Banks", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 58(3): 539-547, 2011.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, "Farrow-structure-based reconfigurable bandpass linear-phase FIR filters for integer sampling rate conversion", IEEE Transactions on Circuits and Systems II: Express Briefs, 58(1): 46-50, 2011.
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Amir Eghbali, Håkan Johansson, Per Löwenborg, Heinz G Göckler, "Dynamic Frequency-Band Reallocation and Allocation: from Satellite-Based Communication Systems to Cognitive Radios", Journal of VLSI Signal Processing Systems for Signal, Image and Video Technology, 62(2): 187-203, 2011.
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2010
Linnea Rosenbaum, Per Löwenborg, Håkan Johansson, "Two Classes of Cosine-Modulated IIR/IIR and IIR/FIR NPR Filter Banks", CIRCUITS SYSTEMS AND SIGNAL PROCESSING, 29(1): 103-133, 2010.
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2009
Amir Eghbali, Håkan Johansson, Per Löwenborg, "Flexible Frequency-Band Reallocation: Complex Versus Real", Circuits, systems, and signal processing, 28(3): 409-431, 2009.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, "A Polynomial-Based Time-Varying Filter Structure for the Compensation of Frequency-Response Mismatch Errors in Time-Interleaved ADCs", IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING, 3(3): 384-396, 2009.
AbstractKeywordsBiBTeXDOI
2008
Anton Blad, Håkan Johansson, Per Löwenborg, "Multirate formulation for mismatch sensitivity analysis of analog-to-digital converters that utilize parallel S?-modulators", Eurasip Journal on Advances in Signal Processing, 2008, 2008.
AbstractKeywordsBiBTeXDOI
E. Hermanowicz, Håkan Johansson, M. Rojewski, "A fractionally delaying complex Hilbert transform filter", IEEE Transactions on Circuits and Systems II: Express Briefs, 55(5): 452-456, 2008.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, Per Löwenborg, "A Least-Squares Filter Design Technique for the Compensation of Frequency Response Mismatch Errors in Time-Interleaved A/D Converters", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 55(11): 1154-1158, 2008.
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Amir Eghbali, Håkan Johansson, Per Löwenborg, "A Multimode Transmultiplexer Structure", IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 55(3): 279-283, 2008.
AbstractKeywordsBiBTeXDOIFulltext
2007
Håkan Johansson, Ewa Hermanowicz, "A complex variable fractional-delay FIR filter structure", IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 54(9): 785-789, 2007.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, Per Löwenborg, Kameswaran Vengattaramane, "Least-squares and minimax design of polynomial impulse response FIR filters for reconstruction of two-periodic nonuniformly sampled signals", IEEE Transactions on Circuits And Systems Part I, 54(4): 877-888, 2007.
AbstractKeywordsBiBTeXDOI
Linnea Rosenbaum, Håkan Johansson, "On low-delay frequency-response masking FIR filters", Circuits, systems, and signal processing, 26(1), 2007.
AbstractKeywordsBiBTeXDOI
Linnea Rosenbaum, Per Löwenborg, Håkan Johansson, "An approach for synthesis of modulated M-channel FIR filter banks utilizing the frequency-response masking technique", EURASTP journal an applied signal processing, 2007, 2007.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, Per Löwenborg, "Flexible frequency-band reallocation networks using variable oversampled complex-modulated filter banks", EURASTP journal an applied signal processing, 2007, 2007.
AbstractKeywordsBiBTeXDOI
2006
Håkan Johansson, Per Löwenborg, "Reconstruction of nonuniformly sampled bandlimited signals by means of time-varying discrete-time FIR filters", EURASTP journal an applied signal processing, 2006, 2006.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, "Two classes of frequency-response masking linear-phase FIR filters for interpolation and decimation", Circuits, systems, and signal processing, 25(2): 175-200, 2006.
AbstractKeywordsBiBTeXDOI
Per Löwenborg, Håkan Johansson, "Minimax design of adjustable-bandwidth linear-phase FIR filters", IEEE Transactions on Circuits And Systems Part I, 53(2): 431-439, 2006.
AbstractKeywordsBiBTeXDOI
2005
Håkan Johansson, Oscar Gustafsson, "Linear-phase FIR interpolation, decimation, and M th-band filters utilizing the farrow structure", IEEE Transactions on Circuits And Systems Part I, 52(10): 2197-2207, 2005.
AbstractKeywordsBiBTeXDOI
2004
Per Löwenborg, Håkan Johansson, Lars Wanhammar, "First-order sensitivity of complementary diplexers", IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 51(8): 421-425, 2004.
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Håkan Johansson, Per Löwenborg, "On linear-phase FIR filters with variable bandwidth", IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 51(4): 181-184, 2004.
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2003
Oscar Gustafsson, Håkan Johansson, Lars Wanhammar, "Single filter frequency-response masking FIR filters", Journal of Circuits, Systems and Computers, 12(5): 601-630, 2003.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, "Multirate IIR filter structures for arbitrary bandwidths", IEEE Transactions on Circuits And Systems Part I, 50(12): 1515-1529, 2003.
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Oscar Gustafsson, Håkan Johansson, Lars Wanhammar, "Single Filter Frequency Masking High-Speed Recursive Digital Filters", Circuits, systems, and signal processing, 22(2): 219-238, 2003.
AbstractKeywordsBiBTeXDOI
Tapio Saramäki, Juha Yli-Kaakinen, Håkan Johansson, "Optimization of frequency-response masking based FIR filters", Journal of Circuits, Systems and Computers, 12(5): 563-590, 2003.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, Tapio Saramäki, "Two-channel FIR filter banks utilizing the FRM approach", Circuits, systems, and signal processing, 22(2): 157-192, 2003.
AbstractKeywordsBiBTeX
Elizabeth Elias, Per Löwenborg, Håkan Johansson, Lars Wanhammar, "Tree-structured IIR/FIR uniform-band and octave-band filter banks with very low-complexity analysis or synthesis filters", Signal Processing, 83(9): 1997-2009, 2003.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, Per Löwenborg, "On the design of adjustable fractional delay FIR filters", IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 50(4): 164-169, 2003.
AbstractKeywordsBiBTeXDOI
Per Löwenborg, Håkan Johansson, Lars Wanhammar, "Two-channel digital and hybrid analog/digital multirate filter banks with very low-complexity analysis or synthesis filters", IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 50(7): 355-367, 2003.
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2002
Håkan Johansson, Per Löwenborg, "Reconstruction of nonuniformly sampled bandlimited signals by means of digital fractional delay filters", IEEE Transactions on Signal Processing, 50(11): 2757-2767, 2002.
AbstractKeywordsBiBTeXDOI
2000
Håkan Johansson, Lars Wanhammar, "High-speed recursive digital filters based on the frequency-response masking approach", IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 47(1): 48-61, 2000.
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1999
Håkan Johansson, Lars Wanhammar, "High-speed recursive filter structures composed of identical all-pass subfilters for interpolation, decimation, and QMF banks with perfect magnitude reconstruction", IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 46(1): 16-28, 1999.
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Håkan Johansson, Lars Wanhammar, "Wave digital filter structures for high-speed narrow-band and wide-band filtering", IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 46(6): 726-741, 1999.
AbstractKeywordsBiBTeX
Håkan Johansson, Lars Wanhammar, "Filter structures composed of all-pass and FIR filters for interpolation and decimation by a factor of two", IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 46(7): 896-905, 1999.
AbstractKeywordsBiBTeX
Book chapters
2013
Håkan Johansson, Oscar Gustafsson, "Two-Rate Based Structures for Computationally Efficient Wide-Band FIR Systems", Digital Filters and Signal Processing, 189-212, 2013.
AbstractKeywordsBiBTeXDOI
Conference papers
2016
Håkan Johansson, Anu Kalidas Muralidharan Pillai, "Lower bounds on the L2-norms of digital resampling filters with zero-valued input samples", 2016 IEEE International Conference on Acoustics, Speech,and Signal Processing, IEEE International Conference on Acoustics, Speech and Signal Processing. Proceedings, 4533-4537, 2016.
AbstractKeywordsBiBTeXDOI
Yinan Wang, Håkan Johansson, Hui Xu, Jietao Diao, "Minimax design and order estimation of FIR filters for extending the bandwidth of ADCs", 2016 IEEE International Symposium on Circuits and Systems (ISCAS), IEEE International Symposium on Circuits and Systems. Proceedings, 2186-2189, 2016.
AbstractKeywordsBiBTeXDOI
2015
Håkan Johansson, Oscar Gustafsson, "On frequency-domain implementation of digital FIR filters", IEEE International Conference on Digital Signal Processing (DSP), 2015, 315-318, 2015.
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Håkan Johansson, Oscar Gustafsson, "Filter-Bank Based All-Digital Channelizers and Aggregators for Multi-Standard Video Distribution", IEEE International Conference on Digital Signal Processing (DSP), 2015, 1117-1120, 2015.
AbstractKeywordsBiBTeXDOI
Oscar Gustafsson, Håkan Johansson, "Decimation Filters for High-Speed Delta-Sigma Modulators With Passband Constraints: General Versus CIC-Based FIR Filters", 2015 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), IEEE International Symposium on Circuits and Systems, 2205-2208, 2015.
AbstractKeywordsBiBTeXDOI
2014
Anu Kalidas Muralidharan Pillai, Håkan Johansson, "Two reconstructors for M-channel time-interleaved ADCs with missing samples", IEEE 12th International New Circuits and Systems Conference (NEWCAS), 2014, 41-44, 2014.
AbstractKeywordsBiBTeXDOIFulltext
Anu Kalidas Muralidharan Pillai, Håkan Johansson, "A sub-band based reconstructor for M-channel time-interleaved ADCs with missing samples", 2014 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP), International Conference on Acoustics Speech and Signal Processing ICASSP, 2014.
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2013
Håkan Johansson, Amir Eghbali, "FIR Filter With Variable Fractional Delay and Phase Shift: Efficient Realization and Design Using Reweighted l(1)-Norm Minimization", 2013 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), Vol. 2013, 81-84, 2013.
AbstractKeywordsBiBTeXDOI
Anu Kalidas Pillai, Håkan Johansson, "Low-complexity two-rate based multivariate impulse response reconstructor for time-skew error correction in m-channel time-interleaved ADCs", IEEE International Symposium on Circuits and Systems (ISCAS), 2013, IEEE International Symposium on Circuits and Systems, 2936-2939, 2013.
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Anu Kalidas Muralidharan Pillai, Håkan Johansson, "Efficient reconfigurable scheme for the recovery of sub-Nyquist sampled sparse multi-band signals", IEEE Global Conference on Signal and Information Processing (GlobalSIP 2013), December 3-5, 2013, Austin, Texas, USA, 1294-1297, 2013.
AbstractKeywordsBiBTeXDOIFulltext
2012
Håkan Johansson, Amir Eghbali, Jimmie Lahti, "Tree-Structured Linear-Phase Nyquist FIR Filter Interpolators and Decimators", 2012 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 2012), 2329-2332, 2012.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, Amir Eghbali, "A realization of FIR filters with simultaneously variable bandwidth and fractional delay", Signal Processing Conference (EUSIPCO), 2012, 2178-2182, 2012.
AbstractKeywordsBiBTeX
Anu Kalidas Muralidharan Pillai, Håkan Johansson, "Efficient signal reconstruction scheme for time-interleaved ADCs", Proc. IEEE 10th Int. New Circuits and Systems Conf. (NEWCAS), 357-360, 2012.
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AbstractKeywordsBiBTeXDOIFulltext
Amir Eghbali, Håkan Johansson, "Reconfigurable two-stage Nyquist filters utilizing the Farrow structure", IEEE Int. Symp. Circuits Syst., Circuits and Systems (ISCAS), IEEE, 3186-3189, 2012.
AbstractKeywordsBiBTeXDOIFulltext
Anu Kalidas Muralidharan Pillai, Håkan Johansson, "Time-skew error correction in two-channel time-interleaved ADCs based on a two-rate approach and polynomial impulse responses", Proc. IEEE 55th Int. Midwest Symp. Circuits Syst. (MWSCAS), 1136-1139, 2012.
AbstractKeywordsBiBTeXDOIFulltext
2011
Amir Eghbali, Håkan Johansson, Tapio Saramäki, "A new structure for reconfigurable two-stage Nyquist pulse shaping filters", Circuits and Systems (MWSCAS), 2011, Midwest Symposium on Circuits and Systems. Conference Proceedings, 1-4, 2011.
AbstractKeywordsBiBTeXDOI
Zaka Ullah Sheikh, Amir Eghbali, Håkan Johansson, "Linear-Phase FIR Digital Differentiator Order Estimation", Proceedings of The 20th European Conference on Circuit Theory and Design, ECCTD2011, 310-313, 2011.
AbstractKeywordsBiBTeXDOI
2010
Amir Eghbali, Håkan Johansson, Tapio Saramäki, Per Löwenborg, "On the design of adjustable fractional delay FIR filters using digital differentiators", <em>Proc. IEEE Int. Conf. Green Circuits Syst.</em>, 289-292, 2010.
AbstractKeywordsBiBTeXDOI
Amir Eghbali, Håkan Johansson, Per Löwenborg, "Reconfigurable nonuniform transmultiplexers based on uniform filter banks", Proc. IEEE Int. Symp. Circuits Syst., Paris, France, May 30-June 2, 2010, 2123-2126, 2010.
AbstractKeywordsBiBTeXDOI
2009
Zaka Ullah Sheikh, Håkan Johansson, "Wideband Linear-Phase FIR Differentiators Utilizing Multirate and Frequency-Response Masking Techniques", Proceedings of IEEE International Symposium on Circuits and Systems, Taipei, Taiwan, May 24–27, 2009., 293-296, 2009.
AbstractKeywordsBiBTeXDOI
Muhammad Abbas, Oscar Gustafsson, Håkan Johansson, "Scaling of fractional delay filters based on the Farrow structure", Proceedings of IEEE International Symposium on Circuits and Systems, 2009. ISCAS 2009, 489-492, 2009.
AbstractKeywordsBiBTeXDOI
Amir Eghbali, Håkan Johansson, Per Löwenborg, "On the filter design for a class of multimode transmultiplexers", Proceedings - IEEE International Symposium on Circuits and Systems, 89-92, 2009.
AbstractKeywordsBiBTeXDOI
2008
Muhammad Abbas, Fahad Qureshi, Zaka Ullah Sheikh, Oscar Gustafsson, Håkan Johansson, Kenny Johansson, "Comparison of Multiplierless Implementation of Nonlinear-Phase Versus Linear-Phase FIR filters", 42ND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS, ISSN 1058-6393, 2008.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, "On the Compensation of Frequency-Response Mismatch Errors in Time-Interleaved ADCs", International Conference Microelectronics (ICM 2008), 2008.
AbstractKeywordsBiBTeXDOI
Amir Eghbali, Håkan Johansson, Per Löwenborg, "A farrow-structure-based multi-mode transmultiplexer", Proceedings of IEEE International Symposium on Circuits and Systems, IEEE International Symposium on Cicuits and Systems, 3114-3117, 2008.
AbstractKeywordsBiBTeXDOIFulltext
2007
Amir Eghbali, Håkan Johansson, Per Löwenborg, "Flexible frequency-band reallocation MIMO networks for real signals", Proc. Int. Symp. Image, Signal Processing, Analysis, Istanbul, Turkey, Sept. 27-29, 2007, Image and Signal Processing and Analysis, 75-80, 2007.
AbstractKeywordsBiBTeXDOI
Amir Eghbali, Håkan Johansson, Per Löwenborg, "On the complexity of multiplierless direct and polyphase FIR filter structures", Proc. Int. Symp. Image, Signal Processing, Analysis, Istanbul, Turkey, Sept. 27-29, 2007, Image and Signal Processing and Analysis, 200-205, 2007.
AbstractKeywordsBiBTeXDOI
Amir Eghbali, Håkan Johansson, Per Löwenborg, "An arbitrary bandwidth transmultiplexer and its application to flexible frequency-band reallocation networks", Proc. European Conf. Circuit Theory Design, Seville, Spain, Aug. 26-30, 2007, 248-251, 2007.
AbstractKeywordsBiBTeXDOI
Oscar Gustafsson, Håkan Johansson, "Complexity comparison of linear-phase Mth-band and general FIR filters", IEEE International Symposium on Circuits and Systems,2007, 2335-, 2007.
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Oscar Gustafsson, Linda DeBrunner, Victor DeBrunner, Håkan Johansson, "On the design of sparse half-band like FIR filters", Asilomar Conference on Signals, Systems, and Computers,2007, 2007.
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2006
Håkan Johansson, Oscar Gustafsson, Kenny Johansson, Lars Wanhammar, "Adjustable fractional-delay FIR filters using the Farrow structure and multirate techniques", Asia Pacific Conference on Circuits and Systems,2006, 1055-1058, 2006.
AbstractKeywordsBiBTeXDOI
Mattias Olsson, Håkan Johansson, Per Löwenborg, "Time-delay estimation using Farrow-based fractional-delay FIR filters: Approximation vs. estimation errors", European Signal Processing Conference,2006, 2006.
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Linnea Rosenbaum, Håkan Johansson, Per Löwenborg, "Oversampled complex-modulated causal IIR filter banks for flexible frequency-band reallocation networks", European Signal Processing Conference,2006, 2006.
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Oscar Gustafsson, Håkan Johansson, "Complexity comparison of linear-phase half-band and general FIR filters", IEEE Asia Pacific Conference on Circuits and Systems,2006, 2006.
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Oscar Gustafsson, Håkan Johansson, "Efficient implementation of FIR filter based rational sampling rate converters using constant matrix multiplication", Asilomar Conference on Signals, Systems, and Computers,2006, 2006.
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Oscar Gustafsson, Kenny Johansson, Håkan Johansson, Lars Wanhammar, "Implementation of polyphase decomposed FIR filters for interpolation and decimation using multiple constant multiplication techniques", IEEE Asia Pacific Conference on Circuits and Systems,2006, 924-927, 2006.
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Anton Blad, Christer Svensson, Håkan Johansson, Stefan Andersson, "An RF sampling radio frontend based on sigmadelta-conversion.", 24th Norchip Conference,2006, 133-136, 2006.
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Håkan Johansson, Per Löwenborg, Kameswaran Vengattaramane, "Reconstruction of M-periodic nonuniformly sampled signals using multivariate impulse response time-varying FIR filters", European Signal Processing Conference,2006, 2006.
AbstractKeywordsBiBTeX
Håkan Johansson, Ewa Hermanowicz, "Adjustable fractional-delay filters utilizing the Farrow structure and multirate techniques", Sixth Int. Workshop Spectral Methods Multirate Signal Processing,2006, 2006.
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Anton Blad, Håkan Johansson, Per Löwenborg, "A General Formulation of Analog-to-Digital Converters Using Parallel Sigma-Delta Modulators and Modulation Sequences", Asia Pacific Conference on Circuits and Systems,2006, 2006.
AbstractKeywordsBiBTeX
Anton Blad, Per Löwenborg, Håkan Johansson, "Design Trade-Offs for Linear-Phase FIR Decimation Filters and SD-Modulat ors", 14th European Signal Processing Conference,2006, 2006.
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Mattias Olsson, Håkan Johansson, Per Löwenborg, "Delay Estimation Using Adjustable Fractional Delay All-Pass Filters", Nordic Signal Processing Symposium,2006, 2006.
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Christian Vogel, Håkan Johansson, "Time-interleaved analog-to-digital converters: Status and future directions", IEEE International Symposium on Circuits and Systems,2006, 2006.
AbstractKeywordsBiBTeX
Håkan Johansson, Per Löwenborg, Kameswaran Vengattaramane, "Reconstruction of two-periodic nonuniformly sampled signals using polynomial impulse response time-varying FIR filters", IEEE International Symposium on Circuits and Systems,2006, 2006.
AbstractKeywordsBiBTeX
2005
Linnea Rosenbaum, Håkan Johansson, "Narrow-band and wide-band short-delay frequency-masking FIR filters", National Conference Radio Science RVK,2005, 2005.
AbstractKeywordsBiBTeX
Håkan Johansson, Ewa Hermanowicz, "On designing minimax adjustable wideband fractional delay FIR filters using two-rate approach", European Conference on Circuit Theory and Design,2005, 3/437-3/440, 2005.
AbstractKeywordsBiBTeX
Per Löwenborg, Linnea Rosenbaum, Håkan Johansson, "On flexible analog/digital interfaces for multi-mode communication", Swedish System-on-chip Conference,2005, 2005.
KeywordsBiBTeX
Håkan Johansson, Per Löwenborg, "Flexible frequency-band reallocation networks based on variable oversampled complex-modulated filter banks", IEEE International Conference on Acoustics Speech and Signal Processing,2005, iii/973-iii/976, 2005.
AbstractKeywordsBiBTeX
2004
Håkan Johansson, "On the design of IIR bandpass filters with an adjustable bandwidth and centre frequency", IEEE Int. Symp. on Circuits and Systems,2004, 173-176, 2004.
KeywordsBiBTeX
Per Löwenborg, Håkan Johansson, "Minimax design of linear-phase FIR filters with adjustable bandwidths", IEEE Int. Symp. on Circuits and Systems,2004, 657-660, 2004.
KeywordsBiBTeX
Håkan Johansson, Per Löwenborg, "Reconstruction of nonuniformly sampled bandlimited signals using time-varying discrete-time FIR filters", Proc. XII European Signal Processing Conf,2004, 2004.
KeywordsBiBTeX
Håkan Johansson, Per Löwenborg, "Reconstruction of periodically nonuniformly sampled bandlimited signals using time-varying FIR filters", Fourth Int. Workshop Spectral Methods Multirate Signal Processing,2004, 2004.
KeywordsBiBTeX
Håkan Johansson, Oscar Gustafsson, "Mth-band linear-phase FIR filter interpolators and decimators utilizing the Farrow structure", Proceedings of the 2004 International Symposium on Circuits and Systems, 2004. ISCAS '04, Volume 3, 129-132, 2004.
AbstractKeywordsBiBTeXDOI
Mattias Olsson, Per Löwenborg, Håkan Johansson, "Scaling of multistage interpolators", XII European Signal Processing Conf.,2004, 2004.
AbstractKeywordsBiBTeX
Mattias Olsson, Håkan Johansson, Per Löwenborg, "Scaling and round-off noise in multistage interpolators and decimators", Int. Workshop Spectral Methods Multirate Signal Processing,2004, 2004.
AbstractKeywordsBiBTeX
Mattias Olsson, Håkan Johansson, "Blind OFDM carrier frequency offset estimation by locating null subcarriers", OFDM Workshop 2004,2004, 2004.
AbstractKeywordsBiBTeX
Oscar Gustafsson, Håkan Johansson, Lars Wanhammar, "MILP design of frequency-response masking FIR filters with few SPT terms", First International Symposium on Control, Communications and Signal Processing, 2004, 405-408, 2004.
AbstractKeywordsBiBTeXDOI
Henrik Ohlsson, Behzad Mesgarzadeh, Kenny Johansson, Oscar Gustafsson, Per Löwenborg, Håkan Johansson, Atila Alvandpour, "A 16 GSPS 0.18 µm CMOS decimator for single-bit ∑∆-modulation.", Norchip,2004, 175-, 2004.
KeywordsBiBTeX
2003
Håkan Johansson, "Efficient frequency-response-masking based FIR filter structures for interpolation and decimation", International Workshop on Spectral Methods and Multirate Signal Processing,2003, 59-62, 2003.
AbstractKeywordsBiBTeX
Linnea Rosenbaum, Håkan Johansson, "Two-channel linear-phase FIR filter banks utilizing the frequency-response masking approach", European Conference on Circuit Theory and Design,2003, 2003.
AbstractKeywordsBiBTeX
Håkan Johansson, "On lowpass and highpass IIR filters with an adjustable bandwidth", European Conference on Circuit Theory and Design,2003, 2003.
AbstractKeywordsBiBTeX
Baharak Soltanian, Tapio Saramäki, Håkan Johansson, "Design of optimum recursive digital filters with double zeros on the unit circle leading to symmetric ladder wave digital filter structures", International Symposium on Image and Signal Processing and Analysis,2003, 44-49, 2003.
AbstractKeywordsBiBTeX
Per Löwenborg, Håkan Johansson, "Analysis of continuous-time-input sigma-delta modulators and their generalization", European Conference on Circuits Theory and Design,2003, 2003.
KeywordsBiBTeX
Linnea Rosenbaum, Per Löwenborg, Håkan Johansson, "Cosine and sine modulated FIR filter banks utilizing the frequency-response masking approach", IEEE Internationals Symposium on Circuits and Systems,2003, III-882-III-885, 2003.
AbstractKeywordsBiBTeX
Håkan Johansson, Per Löwenborg, "Linear programming design of linear-phase FIR filters with variable bandwidth", IEEE International Symposium on Circuits and Systems,2003, III-554-III-557, 2003.
AbstractKeywordsBiBTeX
2002
Håkan Johansson, "A class of Mth-band linear-phase FIR filters synthesized using the frequency-response masking approach", Nordic Signal Processing Symposium,2002, 2002.
AbstractKeywordsBiBTeX
Håkan Johansson, "Efficient FIR filter structures based on the frequency-response masking approach for interpolation and decimation by a factor of two", International Workshop on Spectral Methods and Multirate Signal Processing,2002, 73-76, 2002.
AbstractKeywordsBiBTeX
Linnea Rosenbaum, Håkan Johansson, "Narrow-band and wide-band frequency masking FIR filters with short delay", National Conference Radio Science RVK,2002, 496-, 2002.
AbstractKeywordsBiBTeX
Håkan Johansson, "Multirate approximately linear-phase IIR filter structures for arbitrary bandwidths", International Symposium on Circuits and Systems,2002, 5/289-, 2002.
AbstractKeywordsBiBTeX
Linnea Rosenbaum, Håkan Johansson, "Frequency response masking FIR filters with short delay", International Symposium on Circuits on Systems,2002, 3/26-, 2002.
AbstractKeywordsBiBTeX
Linnea Rosenbaum, Per Löwenborg, Håkan Johansson, "Modulated M-channel FIR filter banks utilizing the frequency response masking approach", IEEE Nordic Signal Processing Symposium,2002, 2002.
KeywordsBiBTeX
Per Löwenborg, Håkan Johansson, Lars Wanhammar, "First-order sensitivity of constant-resistance analog filters with application fo filter banks", IEEE Nordic Signal Processing Symposium,2002, 2002.
KeywordsBiBTeX
Linnea Rosenbaum, Per Löwenborg, Håkan Johansson, "Asymmetric cosine modulated causal IIR/FIR NPR filter banks", Second International Workshop on Spectral Methods and Multirate Signal Processing,2002, 2002.
KeywordsBiBTeX
Per Löwenborg, Håkan Johansson, "Mitigation of static gain- and time-skew errors in time-interleaved ADCs using a system of digital fractional delay filters", Second International Workshop on Spectral Methods and Multirate Signal Processing,2002, 2002.
KeywordsBiBTeX
Linnea Rosenbaum, Per Löwenborg, Håkan Johansson, "A class of cosine modulated causal IIR filter banks", IEEE International Conference on Electronics Circuits and Systems,2002, 915-918, 2002.
AbstractKeywordsBiBTeX
Linnea Rosenbaum, Per Löwenborg, Håkan Johansson, "Cosine-modulated causal IIR NPMR and NPR filter banks", Swedish System-on-chip Conference,2002, 2002.
KeywordsBiBTeX
Per Löwenborg, Håkan Johansson, "A technique for correction of static gain- and time-skew errors in time-interleaved ADCs", Swedish System-on-chip Conference,2002, 2002.
KeywordsBiBTeX
Håkan Johansson, Per Löwenborg, "Reconstruction of a class of nonuniformly sampled and decimated bandlimited signals", IEEE International Symposium on Circuits and Systems,2002, II-604-II-607, 2002.
AbstractKeywordsBiBTeX
2001
Henrik Ohlsson, Oscar Gustafsson, Håkan Johansson, Lars Wanhammar, "Implementation of bit-parallel lattice wave digital filters with increased maximal sample rate", IEEE international conference on electronics, circuits, and systems,2001, 1/71-, 2001.
AbstractKeywordsBiBTeX
Tapio Saramäki, Håkan Johansson, "Optimization of FIR filters using the frequency-response masking approach", International symposium on circuits and systems,2001, 2/177-, 2001.
AbstractKeywordsBiBTeX
Elizabeth Elias, Per Löwenborg, Håkan Johansson, Lars Wanhammar, "Two-channel IIR/FIR filter banks with very low-complexity analysis or synthesis filters: finite wordlength effects", IEEE Midwest Symposium on Circuits and Systems,2001, 126-129, 2001.
AbstractKeywordsBiBTeX
Håkan Johansson, Per Löwenborg, "On adjustable fractional delay FIR filters and their design", European Conference on Circuits Theory and Design,2001, 2001.
KeywordsBiBTeX
Håkan Johansson, Per Löwenborg, "Reconstruction of nonuniformly sampled bandlimited signals using digital fractional delay filters: Error and quantization noise analysis", European Conference on Circuits Theory and Design,2001, 2001.
KeywordsBiBTeX
Per Löwenborg, Håkan Johansson, Lars Wanhammar, "A survey of filter bank A/D converters", Swedish System-on-chip Conference,2001, 2001.
KeywordsBiBTeX
Håkan Johansson, Per Löwenborg, "Reconstruction of nonuniformly sampled bandlimited signals using digital fractional delay filters", IEEE International Symposium on Circuits and Systems,2001, 593-596, 2001.
AbstractKeywordsBiBTeX
Elizabeth Elias, Per Löwenborg, Håkan Johansson, Lars Wanhammar, "Tree-structured IIR/FIR octave-band filter banks with very low-complexity analysis filters", IEEE International Symposium on Circuits and Systems,2001, 533-536, 2001.
AbstractKeywordsBiBTeX
Per Löwenborg, Håkan Johansson, "Quantization noise in filter bank analog-to-digital converters", IEEE International Symposium on Circuits and Systems,2001, 601-604, 2001.
AbstractKeywordsBiBTeX
Per Löwenborg, Håkan Johansson, Lars Wanhammar, "Analysis of gain and time-skew errors in filter bank based A/D converters", IEEE Midwest Symposium on Circuits and Systems,2001, 263-266, 2001.
AbstractKeywordsBiBTeXDOI
2000
Henrik Ohlsson, Håkan Johansson, Lars Wanhammar, "Implementation of a combined interpolator and decimator for an OFDM system demonstrator", NORCHIP,2000, 47-, 2000.
AbstractKeywordsBiBTeX
Håkan Johansson, "New classes of frequency-response masking FIR filters", International symposium on circuits and systems,2000, 81-84 vol.3, 2000.
AbstractKeywordsBiBTeXDOI
Håkan Johansson, "A class of high-speed wide-band frequency masking recursive digital filters with approximately linear phase,", Nordic Signal Processing Symposium,2000, LiTH-ISY-R, Vol. 2272, 2000.
AbstractKeywordsBiBTeX
Håkan Johansson, "On high-speed recursive digital filters", European Signal Processing Conference,2000, 1701-1704, 2000.
AbstractKeywordsBiBTeX
Per Löwenborg, Håkan Johansson, Lars Wanhammar, "A class of two-channel IIR/FIR filter banks", European Signal Processing Conference,2000, LiTH-ISY-R, Vol. 2286, 1897-1900, 2000.
AbstractKeywordsBiBTeX
Per Löwenborg, Håkan Johansson, Lars Wanhammar, "A two-channel hybrid analog and IIR digital filter bank approximating perfect reconstruction", IEEE Nordic Signal Processing Symposium,2000, LiTH-ISY-R, Vol. 2283, 2000.
AbstractKeywordsBiBTeX
Per Löwenborg, Håkan Johansson, Lars Wanhammar, "Two-channel hybrid analog/digital filter banks with alias-free subbands", IEEE Midwest Symposium on Circuits and Systems,2000, 1162-1165, 2000.
AbstractKeywordsBiBTeXDOI
Per Löwenborg, Håkan Johansson, Lars Wanhammar, "A class of two-channel approximately perfect reconstruction hybrid analog/digital filter banks", IEEE International Symposium on Circuits and Systems,2000, 579-582, 2000.
AbstractKeywordsBiBTeX
Elizabeth Elias, Per Löwenborg, Håkan Johansson, Lars Wanhammar, "Design of M-channel tree-structured filter banks with very low-complexity analysis filters", IEEE International Conference on Electronics Circuits and Systems,2000, 87-90 vol.1, 2000.
AbstractKeywordsBiBTeXDOI
Elizabeth Elias, Per Löwenborg, Håkan Johansson, Lars Wanhammar, "M-channel tree-structured IIR/FIR filter banks with low-complexity analysis filters", IEEE Nordic Signal Processing Symposium,2000, 2000.
KeywordsBiBTeX
1999
Håkan Johansson, "An approach to increase the maximal sample frequency of lattice wave digital filters based on circulators and Richards' structures", European Conference on Circuit Theory and Design,1999, 2/1319-, 1999.
AbstractKeywordsBiBTeX
Håkan Johansson, Lars Wanhammar, "High-speed recursive digital filters based on frequency masking techniques", National Conf. Radio Science RVK,1999, 357-361, 1999.
AbstractKeywordsBiBTeX
Håkan Johansson, Tapio Saramäki, "Two-channel FIR filter banks based on the frequency-response masking approach", International Workshop on Transforms and Filter Banks,1999, 367-382, 1999.
AbstractKeywordsBiBTeX
Håkan Johansson, "A class of high-speed approximately linear-phase recursive digital filters based on the frequency-response masking approach", Midwest symposium on circuits and systems,1999, 1/397-, 1999.
AbstractKeywordsBiBTeX
Håkan Johansson, "Multirate single-stage and multistage structures for high-speed recursive digital filtering", International symposium on circuits and systems,1999, 3/291-, 1999.
AbstractKeywordsBiBTeX
Henrik Ohlsson, Håkan Johansson, Lars Wanhammar, "Implementation of a combined high-speed interpolation and decimation wave digital filter", International conference on electronics, circuits, and systems,1999, 2/721-, 1999.
AbstractKeywordsBiBTeX
Håkan Johansson, Tapio Saramäki, "A class of complementary IIR filters", International symposium on circuits and systems,1999, 3/299-, 1999.
AbstractKeywordsBiBTeX
Per Löwenborg, Håkan Johansson, Lars Wanhammar, "A design procedure for 2-channel mixed analog and digital filter banks for A/D conversion using minimax optimization", IEEE International Conference on Electronics Circuits and Systems,1999, 1189-1192, 1999.
AbstractKeywordsBiBTeX
Per Löwenborg, Håkan Johansson, Lars Wanhammar, "On the frequency response of M-channel mixed analog and digital maximally decimated filter banks", European Conference on Circuits Theory and Design,1999, 1999.
KeywordsBiBTeX
Per Löwenborg, Håkan Johansson, Lars Wanhammar, "A class of two-channel hybrid analog/digital filter banks", Midwest Symposium on Circuits and Systems,1999, 14-17, 1999.
AbstractKeywordsBiBTeX
1998
Mark Vesterbacka, Håkan Johansson, Kent Palmkvist, Lars Wanhammar, "Implementation of narrow-band lattice wave digital filters", Proc. 1998 IEEE Nordic Signal Processing Symp., NORSIG'98, 153-156, 1998.
AbstractKeywordsBiBTeX
1996
Håkan Johansson, Kent Palmkvist, Mark Vesterbacka, Lars Wanhammar, "High-speed lattice wave digital filters for interpolation and decimation", Proc. National Conf. on Radio Science and Communication, RVK'96, 543-547, 1996.
AbstractKeywordsBiBTeX
The publication list is extracted from the DiVA - Academic Archive Online - publishing system. The extraction software is developed by Johan Wiklund.

Sidansvarig: Håkan Johansson
Senast uppdaterad: 2016 02 23   19:00