Publications for Håkan Johansson
Co-author map based on ISI articles 2007-
Publications mentioned in social media 2 times*
Journal Articles
Håkan Johansson and Ewa Hermanowicz
Two-Rate Based Low-Complexity Variable Fractional-Delay FIR Filter Structures
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2013, 60(1), 136-149.
Web of Science® Times Cited: 1 |
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, 2012, 59(6), 366-370.
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Amir Eghbali, Håkan Johansson and Per Löwenborg
A Class of Multimode Transmultiplexers Based on the Farrow Structure
Circuits, systems, and signal processing, 2012, 31(3), 961-985.
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Zaka Ullah Sheikh and Håkan Johansson
Efficient Wide-Band FIR LTI Systems Derived Via Multi-Rate Techniques and Sparse Bandpass
IEEE Transactions on Signal Processing, 2012, 60(7), 3859-3863.
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Zaka Ullah Sheikh and Håkan Johansson
A Technique for Efficient Realization of Wide-Band FIR LTI Systems
IEEE Transactions on Signal Processing, 2012, 60(3), 1482-1486.
Web of Science® Times Cited: 1 |
Amir Eghbali, T. Saramaki and Håkan Johansson
On two-stage Nyquist pulse shaping filters
IEEE Transactions on Signal Processing, 2012, 60(1), 483-488.
Web of Science® Times Cited: 1 |
Zaka Ullah Sheikh and 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, 2011, 58(8), 1827-1839.
Web of Science® Times Cited: 4 |
Amir Eghbali, Håkan Johansson and Per Löwenborg
Reconfigurable Nonuniform Transmultiplexers Using Uniform Modulated Filter Banks
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2011, 58(3), 539-547.
Web of Science® Times Cited: 2 |
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, 2011, 58(1), 46-50.
Fulltext  Web of Science® Times Cited: 2 |
Amir Eghbali, Håkan Johansson, Per Löwenborg and 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, 2011, 62(2), 187-203.
Web of Science® Times Cited: 1 |
Linnea Rosenbaum, Per Löwenborg and Håkan Johansson
Two Classes of Cosine-Modulated IIR/IIR and IIR/FIR NPR Filter Banks
CIRCUITS SYSTEMS AND SIGNAL PROCESSING, 2010, 29(1), 103-133.
Web of Science® Times Cited: 1 |
Amir Eghbali, Håkan Johansson and Per Löwenborg
Flexible Frequency-Band Reallocation: Complex Versus Real
Circuits, systems, and signal processing, 2009, 28(3), 409-431.
Web of Science® Times Cited: 1 |
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, 2009, 3(3), 384-396.
Web of Science® Times Cited: 9 |
Anton Blad, Håkan Johansson and 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, .
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E. Hermanowicz, Håkan Johansson and M. Rojewski
A fractionally delaying complex Hilbert transform filter
IEEE Transactions on Circuits and Systems II: Express Briefs, 2008, 55(5), 452-456.
Web of Science® Times Cited: 2 |
Amir Eghbali, Håkan Johansson and Per Löwenborg
A Multimode Transmultiplexer Structure
IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 2008, 55(3), 279-283.
Fulltext Web of Science® Times Cited: 8 |
Håkan Johansson and 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, 2008, 55(11), 1154-1158.
Web of Science® Times Cited: 13 |
Håkan Johansson and Ewa Hermanowicz
A complex variable fractional-delay FIR filter structure
IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 2007, 54(9), 785-789.
Web of Science® Times Cited: 1 |
Håkan Johansson, Per Löwenborg and 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, 2007, 54(4), 877-888.
Web of Science® Times Cited: 18 |
Linnea Rosenbaum and Håkan Johansson
On low-delay frequency-response masking FIR filters
Circuits, systems, and signal processing, 2007, 26(1), .
Web of Science® Times Cited: 3 |
Linnea Rosenbaum, Per Löwenborg and 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, .
Web of Science® Times Cited: 3 |
Håkan Johansson and Per Löwenborg
Flexible frequency-band reallocation networks using variable oversampled complex-modulated filter banks
EURASTP journal an applied signal processing, 2007, 2007, .
Web of Science® Times Cited: 6 |
Håkan Johansson and 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, .
Web of Science® Times Cited: 11 |
Håkan Johansson
Two classes of frequency-response masking linear-phase FIR filters for interpolation and decimation
Circuits, systems, and signal processing, 2006, 25(2), 175-200.
Web of Science® Times Cited: 10 |
Per Löwenborg and Håkan Johansson
Minimax design of adjustable-bandwidth linear-phase FIR filters
IEEE Transactions on Circuits And Systems Part I, 2006, 53(2), 431-439.
Web of Science® Times Cited: 14 |
Håkan Johansson and Oscar Gustafsson
Linear-phase FIR interpolation, decimation, and M th-band filters utilizing the farrow structure
IEEE Transactions on Circuits And Systems Part I, 2005, 52(10), 2197-2207.
Web of Science® Times Cited: 18 |
Per Löwenborg, Håkan Johansson and Lars Wanhammar
First-order sensitivity of complementary diplexers
IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 2004, 51(8), 421-425.
Web of Science® Times Cited: 1 |
Håkan Johansson and Per Löwenborg
On linear-phase FIR filters with variable bandwidth
IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 2004, 51(4), 181-184.
Web of Science® Times Cited: 5 |
Oscar Gustafsson, Håkan Johansson and Lars Wanhammar
Single filter frequency-response masking FIR filters
Journal of Circuits, Systems and Computers, 2003, 12(5), 601-630.
Web of Science® Times Cited: 11 |
Håkan Johansson
Multirate IIR filter structures for arbitrary bandwidths
IEEE Transactions on Circuits And Systems Part I, 2003, 50(12), 1515-1529.
Web of Science® Times Cited: 2 |
Oscar Gustafsson, Håkan Johansson and Lars Wanhammar
Single Filter Frequency Masking High-Speed Recursive Digital Filters
Circuits, systems, and signal processing, 2003, 22(2), 219-238.
Web of Science® Times Cited: 7 |
Tapio Saramäki, Juha Yli-Kaakinen and Håkan Johansson
Optimization of frequency-response masking based FIR filters
Journal of Circuits, Systems and Computers, 2003, 12(5), 563-590.
Web of Science® Times Cited: 20 |
Håkan Johansson and Tapio Saramäki
Two-channel FIR filter banks utilizing the FRM approach
Circuits, systems, and signal processing, 2003, 22(2), 157-192.
Web of Science® Times Cited: 16 |
Elizabeth Elias, Per Löwenborg, Håkan Johansson and Lars Wanhammar
Tree-structured IIR/FIR uniform-band and octave-band filter banks with very low-complexity analysis or synthesis filters
Signal Processing, 2003, 83(9), 1997-2009.
Web of Science® Times Cited: 7 |
Håkan Johansson and Per Löwenborg
On the design of adjustable fractional delay FIR filters
IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print), 2003, 50(4), 164-169.
Web of Science® Times Cited: 63 |
Per Löwenborg, Håkan Johansson and 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), 2003, 50(7), 355-367.
Web of Science® Times Cited: 18 |
Håkan Johansson and Per Löwenborg
Reconstruction of nonuniformly sampled bandlimited signals by means of digital fractional delay filters
IEEE Transactions on Signal Processing, 2002, 50(11), 2757-2767.
Web of Science® Times Cited: 67 |
Håkan Johansson and 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), 2000, 47(1), 48-61.
Web of Science® Times Cited: 23 |
Håkan Johansson and 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), 1999, 46(1), 16-28.
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Håkan Johansson and 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), 1999, 46(6), 726-741.
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Håkan Johansson and 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), 1999, 46(7), 896-905.
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Chapters in Books
Conference Articles
Anu Kalidas Muralidharan Pillai and 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), 19-23 May 2013, Beijing, China, 2013.
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Håkan Johansson and Amir Eghbali
A realization of FIR filters with simultaneously variable bandwidth and fractional delay
Signal Processing Conference (EUSIPCO), 2012, 2012.
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Anu Kalidas Muralidharan Pillai and Håkan Johansson
Efficient Signal Reconstruction Scheme for Time-Interleaved ADCs
New Circuits and Systems Conference (NEWCAS), 2012, 2012.
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Amir Eghbali and Håkan Johansson
Complexity reduction in low-delay Farrow-structure-based variable fractional delay FIR filters utilizing linear-phase subfilters
Eur. Conf. Circuit Theory Design, 2012.
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Amir Eghbali and Håkan Johansson
Reconfigurable two-stage Nyquist filters utilizing the Farrow structure
IEEE Int. Symp. Circuits Syst., 2012.
Fulltext
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Anu Kalidas Muralidharan Pillai and Håkan Johansson
Time-Skew Error Correction in Two-Channel Time-Interleaved ADCs Based on a Two-Rate Approach and Polynomial Impulse Responses
Circuits and Systems (MWSCAS), IEEE 2012, 2012.
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Amir Eghbali, Håkan Johansson and Tapio Saramäki
A new structure for reconfigurable two-stage Nyquist pulse shaping filters
Circuits and Systems (MWSCAS), 2011, 2011.
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Zaka Ullah Sheikh, Amir Eghbali and Håkan Johansson
Linear-Phase FIR Digital Differentiator Order Estimation
Proceedings of The 20th European Conference on Circuit Theory and Design, ECCTD2011, 2011.
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Amir Eghbali, Håkan Johansson, Tapio Saramäki and Per Löwenborg
On the design of adjustable fractional delay FIR filters using digital differentiators
<em>Proc. IEEE Int. Conf. Green Circuits Syst.</em>, 2010.
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Amir Eghbali, Håkan Johansson and Per Löwenborg
Reconfigurable nonuniform transmultiplexers based on uniform filter banks
Proc. IEEE Int. Symp. Circuits Syst., Paris, France, May 30-June 2, 2010, 2010.
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Zaka Ullah Sheikh and 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., 2009.
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Muhammad Abbas, Oscar Gustafsson and Håkan Johansson
Scaling of fractional delay filters based on the Farrow structure
Proceedings of IEEE International Symposium on Circuits and Systems, 2009. ISCAS 2009, 2009.
Web of Science® Times Cited: 1
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Amir Eghbali, Håkan Johansson and Per Löwenborg
On the filter design for a class of multimode transmultiplexers
Proc. IEEE Int. Symp. Circuits Syst., Taipei, Taiwan, May. 24-27, 2009, 2009.
Web of Science® Times Cited: 2
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Håkan Johansson
On the Compensation of Frequency-Response Mismatch Errors in Time-Interleaved ADCs
International Conference Microelectronics (ICM 2008), 2008.
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Muhammad Abbas, Fahad Qureshi, Zaka Ullah Sheikh, Oscar Gustafsson, Håkan Johansson and 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.
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Amir Eghbali, Håkan Johansson and Per Löwenborg
A farrow-structure-based multi-mode transmultiplexer
Proceedings of IEEE International Symposium on Circuits and Systems, 2008.
Fulltext
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Amir Eghbali, Håkan Johansson and 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, 2007.
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Amir Eghbali, Håkan Johansson and Per Löwenborg
Flexible frequency-band reallocation MIMO networks for real signals
Proc. Int. Symp. Image, Signal Processing, Analysis, Istanbul, Turkey, Sept. 27-29, 2007, 2007.
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Amir Eghbali, Håkan Johansson and 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, 2007.
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Oscar Gustafsson and Håkan Johansson
Complexity comparison of linear-phase Mth-band and general FIR filters
IEEE International Symposium on Circuits and Systems,2007, 2007.
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Oscar Gustafsson, Linda DeBrunner, Victor DeBrunner and Håkan Johansson
On the design of sparse half-band like FIR filters
Asilomar Conference on Signals, Systems, and Computers,2007, 2007.
Web of Science® Times Cited: 10
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Håkan Johansson, Oscar Gustafsson, Kenny Johansson and Lars Wanhammar
Adjustable fractional-delay FIR filters using the Farrow structure and multirate techniques
Asia Pacific Conference on Circuits and Systems,2006, 2006.
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Mattias Olsson, Håkan Johansson and 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 and 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, Kenny Johansson, Håkan Johansson and 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, 2006.
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Oscar Gustafsson and 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 and 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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Anton Blad, Christer Svensson, Håkan Johansson and Stefan Andersson
An RF sampling radio frontend based on sigmadelta-conversion.
24th Norchip Conference,2006, 2006.
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Håkan Johansson, Per Löwenborg and Kameswaran Vengattaramane
Reconstruction of M-periodic nonuniformly sampled signals using multivariate impulse response time-varying FIR filters
European Signal Processing Conference,2006, 2006.
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Håkan Johansson and 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 and 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.
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Anton Blad, Per Löwenborg and 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 and Per Löwenborg
Delay Estimation Using Adjustable Fractional Delay All-Pass Filters
Nordic Signal Processing Symposium,2006, 2006.
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Christian Vogel and Håkan Johansson
Time-interleaved analog-to-digital converters: Status and future directions
IEEE International Symposium on Circuits and Systems,2006, 2006.
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Håkan Johansson, Per Löwenborg and 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.
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Linnea Rosenbaum and Håkan Johansson
Narrow-band and wide-band short-delay frequency-masking FIR filters
National Conference Radio Science RVK,2005, 2005.
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Håkan Johansson and Ewa Hermanowicz
On designing minimax adjustable wideband fractional delay FIR filters using two-rate approach
European Conference on Circuit Theory and Design,2005, 2005.
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Per Löwenborg, Linnea Rosenbaum and Håkan Johansson
On flexible analog/digital interfaces for multi-mode communication
Swedish System-on-chip Conference,2005, 2005.
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Håkan Johansson and 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, 2005.
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Håkan Johansson
On the design of IIR bandpass filters with an adjustable bandwidth and centre frequency
IEEE Int. Symp. on Circuits and Systems,2004, 2004.
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Per Löwenborg and Håkan Johansson
Minimax design of linear-phase FIR filters with adjustable bandwidths
IEEE Int. Symp. on Circuits and Systems,2004, 2004.
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Håkan Johansson and Oscar Gustavsson
Mth-band linear-phase FIR filter interpolators and decimators utilizing the Farrow structure
IEEE Int. Symp. Circuits Syst,2004, 2004.
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Håkan Johansson and Per Löwenborg
Reconstruction of nonuniformly sampled bandlimited signals using time-varying discrete-time FIR filters
Proc. XII European Signal Processing Conf,2004, 2004.
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Håkan Johansson and Per Löwenborg
Reconstruction of periodically nonuniformly sampled bandlimited signals using time-varying FIR filters
Fourth Int. Workshop Spectral Methods Multirate Signal Processing,2004, 2004.
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Mattias Olsson, Per Löwenborg and Håkan Johansson
Scaling of multistage interpolators
XII European Signal Processing Conf.,2004, 2004.
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Mattias Olsson, Håkan Johansson and Per Löwenborg
Scaling and round-off noise in multistage interpolators and decimators
Int. Workshop Spectral Methods Multirate Signal Processing,2004, 2004.
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Mattias Olsson and Håkan Johansson
Blind OFDM carrier frequency offset estimation by locating null subcarriers
OFDM Workshop 2004,2004, 2004.
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Henrik Ohlsson, Behzad Mesgarzadeh, Kenny Johansson, Oscar Gustafsson, Per Löwenborg, Håkan Johansson and Atila Alvandpour
A 16 GSPS 0.18 µm CMOS decimator for single-bit ∑∆-modulation.
Norchip,2004, 2004.
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Håkan Johansson
Efficient frequency-response-masking based FIR filter structures for interpolation and decimation
International Workshop on Spectral Methods and Multirate Signal Processing,2003, 2003.
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Linnea Rosenbaum and Håkan Johansson
Two-channel linear-phase FIR filter banks utilizing the frequency-response masking approach
European Conference on Circuit Theory and Design,2003, 2003.
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Håkan Johansson
On lowpass and highpass IIR filters with an adjustable bandwidth
European Conference on Circuit Theory and Design,2003, 2003.
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Baharak Soltanian, Tapio Saramäki and 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, 2003.
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Per Löwenborg and Håkan Johansson
Analysis of continuous-time-input sigma-delta modulators and their generalization
European Conference on Circuits Theory and Design,2003, 2003.
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Linnea Rosenbaum, Per Löwenborg and Håkan Johansson
Cosine and sine modulated FIR filter banks utilizing the frequency-response masking approach
IEEE Internationals Symposium on Circuits and Systems,2003, 2003.
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Håkan Johansson and Per Löwenborg
Linear programming design of linear-phase FIR filters with variable bandwidth
IEEE International Symposium on Circuits and Systems,2003, 2003.
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Håkan Johansson
A class of Mth-band linear-phase FIR filters synthesized using the frequency-response masking approach
Nordic Signal Processing Symposium,2002, 2002.
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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, 2002.
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Linnea Rosenbaum and Håkan Johansson
Narrow-band and wide-band frequency masking FIR filters with short delay
National Conference Radio Science RVK,2002, 2002.
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Linnea Rosenbaum and Håkan Johansson
Frequency response masking FIR filters with short delay
International Symposium on Circuits on Systems,2002, 2002.
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Håkan Johansson
Multirate approximately linear-phase IIR filter structures for arbitrary bandwidths
International Symposium on Circuits and Systems,2002, 2002.
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Linnea Rosenbaum, Per Löwenborg and Håkan Johansson
Modulated M-channel FIR filter banks utilizing the frequency response masking approach
IEEE Nordic Signal Processing Symposium,2002, 2002.
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Per Löwenborg, Håkan Johansson and Lars Wanhammar
First-order sensitivity of constant-resistance analog filters with application fo filter banks
IEEE Nordic Signal Processing Symposium,2002, 2002.
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Linnea Rosenbaum, Per Löwenborg and Håkan Johansson
Asymmetric cosine modulated causal IIR/FIR NPR filter banks
Second International Workshop on Spectral Methods and Multirate Signal Processing,2002, 2002.
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Per Löwenborg and 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.
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Linnea Rosenbaum, Per Löwenborg and Håkan Johansson
A class of cosine modulated causal IIR filter banks
IEEE International Conference on Electronics Circuits and Systems,2002, 2002.
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Linnea Rosenbaum, Per Löwenborg and Håkan Johansson
Cosine-modulated causal IIR NPMR and NPR filter banks
Swedish System-on-chip Conference,2002, 2002.
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Per Löwenborg and Håkan Johansson
A technique for correction of static gain- and time-skew errors in time-interleaved ADCs
Swedish System-on-chip Conference,2002, 2002.
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Håkan Johansson and Per Löwenborg
Reconstruction of a class of nonuniformly sampled and decimated bandlimited signals
IEEE International Symposium on Circuits and Systems,2002, 2002.
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Henrik Ohlsson, Oscar Gustafsson, Håkan Johansson and Lars Wanhammar
Implementation of bit-parallel lattice wave digital filters with increased maximal sample rate
IEEE international conference on electronics, circuits, and systems,2001, 2001.
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Tapio Saramäki and Håkan Johansson
Optimization of FIR filters using the frequency-response masking approach
International symposium on circuits and systems,2001, 2001.
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Elizabeth Elias, Per Löwenborg, Håkan Johansson and 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, 2001.
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Per Löwenborg, Håkan Johansson and Lars Wanhammar
Analysis of gain and time-skew errors in filter bank based A/D converters
IEEE Midwest Symposium on Circuits and Systems,2001, 2001.
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Håkan Johansson and Per Löwenborg
On adjustable fractional delay FIR filters and their design
European Conference on Circuits Theory and Design,2001, 2001.
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Håkan Johansson and 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.
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Per Löwenborg, Håkan Johansson and Lars Wanhammar
A survey of filter bank A/D converters
Swedish System-on-chip Conference,2001, 2001.
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Håkan Johansson and Per Löwenborg
Reconstruction of nonuniformly sampled bandlimited signals using digital fractional delay filters
IEEE International Symposium on Circuits and Systems,2001, 2001.
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Elizabeth Elias, Per Löwenborg, Håkan Johansson and Lars Wanhammar
Tree-structured IIR/FIR octave-band filter banks with very low-complexity analysis filters
IEEE International Symposium on Circuits and Systems,2001, 2001.
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Per Löwenborg and Håkan Johansson
Quantization noise in filter bank analog-to-digital converters
IEEE International Symposium on Circuits and Systems,2001, 2001.
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Henrik Ohlsson, Håkan Johansson and Lars Wanhammar
Implementation of a combined interpolator and decimator for an OFDM system demonstrator
NORCHIP,2000, 2000.
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Håkan Johansson
On high-speed recursive digital filters
European Signal Processing Conference,2000, 2000.
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Håkan Johansson
A class of high-speed wide-band frequency masking recursive digital filters with approximately linear phase,
Nordic Signal Processing Symposium,2000, 2000.
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Henrik Ohlsson, Håkan Johansson and Lars Wanhammar
Design of a digital down converter using high speed digital filters
Gigahertz Symposium,2000, 2000.
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Håkan Johansson
New classes of frequency-response masking FIR filters
International symposium on circuits and systems,2000, 2000.
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Elizabeth Elias, Per Löwenborg, Håkan Johansson and 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, 2000.
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Per Löwenborg, Håkan Johansson and Lars Wanhammar
A class of two-channel IIR/FIR filter banks
European Signal Processing Conference,2000, 2000.
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Per Löwenborg, Håkan Johansson and Lars Wanhammar
Two-channel hybrid analog/digital filter banks with alias-free subbands
IEEE Midwest Symposium on Circuits and Systems,2000, 2000.
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Elizabeth Elias, Per Löwenborg, Håkan Johansson and Lars Wanhammar
M-channel tree-structured IIR/FIR filter banks with low-complexity analysis filters
IEEE Nordic Signal Processing Symposium,2000, 2000.
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Per Löwenborg, Håkan Johansson and Lars Wanhammar
A two-channel hybrid analog and IIR digital filter bank approximating perfect reconstruction
IEEE Nordic Signal Processing Symposium,2000, 2000.
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Per Löwenborg, Håkan Johansson and Lars Wanhammar
A class of two-channel approximately perfect reconstruction hybrid analog/digital filter banks
IEEE International Symposium on Circuits and Systems,2000, 2000.
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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, 1999.
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Håkan Johansson and Lars Wanhammar
High-speed recursive digital filters based on frequency masking techniques
National Conf. Radio Science RVK,1999, 1999.
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Håkan Johansson and Tapio Saramäki
Two-channel FIR filter banks based on the frequency-response masking approach
International Workshop on Transforms and Filter Banks,1999, 1999.
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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, 1999.
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Håkan Johansson
Multirate single-stage and multistage structures for high-speed recursive digital filtering
International symposium on circuits and systems,1999, 1999.
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Henrik Ohlsson, Håkan Johansson and Lars Wanhammar
Implementation of a combined high-speed interpolation and decimation wave digital filter
International conference on electronics, circuits, and systems,1999, 1999.
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Håkan Johansson and Tapio Saramäki
A class of complementary IIR filters
International symposium on circuits and systems,1999, 1999.
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Per Löwenborg, Håkan Johansson and 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, 1999.
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Per Löwenborg, Håkan Johansson and 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.
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Per Löwenborg, Håkan Johansson and Lars Wanhammar
A class of two-channel hybrid analog/digital filter banks
Midwest Symposium on Circuits and Systems,1999, 1999.
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Mark Vesterbacka, Håkan Johansson, Kent Palmkvist and Lars Wanhammar
Implementation of narrow-band lattice wave digital filters
Proc. 1998 IEEE Nordic Signal Processing Symp., NORSIG'98, 1998.
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Håkan Johansson, Kent Palmkvist, Mark Vesterbacka and Lars Wanhammar
High-speed lattice wave digital filters for interpolation and decimation
Proc. National Conf. on Radio Science and Communication, RVK'96, 1996.
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Ph.D. Theses
Licentiate Theses
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Ph.D., Lic. Theses
