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Filters
Universal FIR MMSE Filtering
2009
IEEE Transactions on Signal Processing
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We build a universal filter whose per-symbol squared error, for every bounded underlying signal, is essentially as small as that of the best finite-duration impulse response (FIR) filter of a given order ...
Our analysis combines tools from the problems of universal filtering and competitive on-line regression. ...
Naturally, we try to merge the methods of [11] and [13] in developing our universal FIR MMSE filter. The rest of the paper is organized as follows. ...
doi:10.1109/tsp.2008.2009894
fatcat:7wgbqkais5gslk7svwr7jmrjqe
Decision-Feedback Equalization of Bandwidth-Constrained N-WDM Coherent Optical Communication Systems
2013
Journal of Lightwave Technology
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We propose to combine the bandwidth-constrained N-WDM scheme with a decision feedback equalizer (DFE) designed according to the minimum mean square error (MMSE) criterion. ...
The number of RRC-FIR taps of the pulse shaping filter N FIR = 64. depth, i.e.: MAP N =3 / MMSE − DFE L=1 and MAP N =5 / MMSE − DFE L=2 . ...
: feedforward filter of the MMSE-DFE, MMSE-FB: feedback filter of the MMSE-DFE. j = √ −1. ...
doi:10.1109/jlt.2013.2252883
fatcat:n5z2cs43kvc5hkzz3nwonoudmu
Competitive On-line Linear FIR MMSE Filtering
2007
2007 IEEE International Symposium on Information Theory
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FIR) filter of order d. ...
Our analysis combines tools from the problems of universal filtering and competitive on-line regression. ...
In this paper, we will focus on the linear FIR MMSE filters, and try to tackle these limitations jointly. ...
doi:10.1109/isit.2007.4557121
dblp:conf/isit/MoonW07
fatcat:fcawbppjkvecncq4hibbbn5riy
Block FIR decision-feedback equalizers for filterbank precoded transmissions with blind channel estimation capabilities
2001
IEEE Transactions on Communications
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In block transmission systems, transmitter-induced redundancy using finite-impulse response (FIR) filterbanks can be used to suppress intersymbol interference and equalize FIR channels irrespective of ...
At the receiver end, linear or decision-feedback (DF) FIR filterbanks can be applied to recover the transmitted data. ...
Precoder, channel, and ZF-DFE when IBI is present. whereas the linear receiver requires FIR filters of length , the ZF-IBI-DFE requires FIR filters of length . ...
doi:10.1109/26.898252
fatcat:2aunasfne5b4bjwg2sdp57zp5u
Realizable Linear and Decision Feedback Equalizers: Properties and Connections
2004
IEEE Transactions on Signal Processing
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., causal, stable, and of finite degree) minimum mean square error (MMSE) equalizers for single-input multiple-output channels, both in the LE and DFE cases, focusing on their structures and filter orders ...
The main tools employed are the Wiener theory of minimum variance estimation and Kalman filtering theory, which show interesting properties of the MMSE equalizers not revealed by previous polynomial approaches ...
In view of this, the MMSE LE for the delay is seen to be the series interconnection of three blocks: a FIR filter of order , a 1 FIR filter of order , and a scalar all-pole filter of order : adj where ...
doi:10.1109/tsp.2003.822360
fatcat:poajarjhyvebfdynie5wnhhzia
Statistical design of nonrecursive digital filters
1974
IEEE Transactions on Acoustics Speech and Signal Processing
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Colorado State University, Fort Collins, Colo. 80321. ...
The philosophy adopted is that for a given FIR filter structure, the filter coefficients can be designed to provide a minimum mean-squared error (MMSE) estimate of a random signal sequence (the design-signal ...
due to finite word length alters tho response of the filter. ...
doi:10.1109/tassp.1974.1162569
fatcat:z3vzvoi365hw5benli4sihwena
Direct-conversion RF receiver design
2001
IEEE Transactions on Communications
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This paper analyzes these noise effects on reception performance of a DCR with alternating-current (ac) coupling filter in the receive path. ...
A performance bound of a DCR given its 1=f noise roll-off frequency and ac-coupling filter cut-off frequency is first obtained using vector coding. ...
Since the received signal is oversampled, an FIR MMSE-LE incorporates matched filtering, noise whitening, and channel equalization operations. ...
doi:10.1109/26.911459
fatcat:yrq35hwytrcm7b75hzcsuxz7x4
Stable pole-zero modeling of long FIR filters with application to the MMSE-DFE
1997
IEEE Transactions on Communications
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The problem of approximating a long FIR filter by a reduced-parameter stable pole-zero filter is addressed in this paper. ...
Our main emphasis is on applying this algorithm to reduce the implementation complexity of the decision feedback equalizer's long FIR feedforward and feedback filters encountered in high-speed data transmission ...
SIMULATION RESULTS The FIR MMSE-DFE consists of two filters: a feedforward filter that combats precursor ISI and noise, and a strictly causal feedback filter that suppresses postcursor ISI. ...
doi:10.1109/26.592547
fatcat:yv66mhvnerhv7l6zcgq5fs2d4y
Fractionally spaced equalization of linear polyphase channels and related blind techniques based on multichannel linear prediction
1999
IEEE Transactions on Signal Processing
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We can sum up this discussion as follows. • For an FIR polyphase channel, an FIR ZF equalizer exists if the FIR ZFE filter is long enough. ...
This is the optimum (MMSE) infinite-length ZF equalizer. We remark that the MMSE ZFE consists of a cascade of the MISO filter (the matched filter) followed by a SISO filter . ...
He received the diploma of electrical engineering from the National Technical University of Athens (NTUA) in 1991. ...
doi:10.1109/78.747772
fatcat:36ypq6kqcre33l2jxt5micuqfi
Order-recursive FIR smoothers
1994
IEEE Transactions on Signal Processing
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Abstnrct-This paper introduces order-recursive FIR smoothers and shows that order-recumhe FIR filters are spedal forum tbat occur when no future data vduw are used to estimate the signd. ...
The formulation leads naturally to gemeralizations of the concepts of prrdictloa-error basis and Cholesky factorization which are well known in FIR Blter design. ...
FIR smoothers and filters. ...
doi:10.1109/78.295191
fatcat:u4mscakfjvfdxcymdl7ojh62mq
Detection of physics-based ultra-wideband signals using generalized RAKE with multiuser detection (MUD) and time-reversal mirror
2006
IEEE Journal on Selected Areas in Communications
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An finite-impulse response filter representation of the per-path impulse response is used and estimated. The new structure greatly improves the system performance. ...
Both synchronous and asynchronous transmission schemes for decorrelating detector and MMSE detector are considered. ...
Two-Dimensional (2-D) Tap-Delayed Line Model The key of the generalized RAKE is to use an finite-impulse response (FIR) filter to represent the per-path impulse response in (1) This FIR filter has taps ...
doi:10.1109/jsac.2005.863813
fatcat:h2a3g25bqjavxdllahpdmgbchu
Magnitude response peak detection and control using balanced model reduction and leakage to a target
1997
IEEE Transactions on Signal Processing
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the filter. ...
Adaptive filters are often used in systems that need to adjust to unknown environments. ...
Balanced Model Reduction-FIR Case For the special case of FIR filters, stability, controllability, and observability are assured as long as . ...
doi:10.1109/78.640710
fatcat:wv6n3ixxenhojglh5nq65ne56u
Joint Channel and Echo Impulse Response Shortening for High-Speed Data Transmission
2009
IEEE Systems Journal
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Index Terms-Echo cancellation, equalization, shortening impulse response. 1932-8184/$26.00 © 2009 IEEE Authorized licensed use limited to: Penn State University. ...
The authors gratefully acknowledge the kind support and helpful discussions with Nexans' engineers and the tools and services of CICTR and high-performance computing services at The Pennsylvania State University ...
Fig. 3 illustrates the resulting ERLE versus sparsity of the corresponding FIR filter, i.e., the number of zero-tap coefficients. ...
doi:10.1109/jsyst.2009.2022571
fatcat:ccfyswzer5bgfmlmhhhyhhbgsm
On the Performance of Coherent Systems in the Presence of Polarization-Dependent Loss for Linear and Maximum Likelihood Receivers
2010
IEEE Photonics Technology Letters
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A second-order optical Gauss filter with 17-GHz bandwidth and a fifth-order Bessel with 9.8-GHz bandwidth were used. Data-aided MMSE equalization was performed with a 13 tap filter. ...
The maximum gain compared to FIR filtering is achieved at PDL dB with 0.96 dB for numerical computations.
V. ...
doi:10.1109/lpt.2010.2047717
fatcat:xum3nm3ssjckppelam2x22s5ui
Simplified receiver design for STBC binary continuous phase modulation
2008
IEEE Transactions on Wireless Communications
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The optimum FIR filter in the sense of minimum meansquare error (MMSE) c mmse is an effective way to recover the information bits [16, ch. 6] . ...
It is found from the simulation results that the linear receiver with an MMSE FIR filter is very robust to ISI. ...
doi:10.1109/twc.2008.060628
fatcat:uootlsamevdwnfq4btj7ojljqa
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