LMS estimation via structural detection

被引:60
作者
Homer, J [1 ]
Mareels, I
Bitmead, RR
Wahlberg, B
Gustafsson, F
机构
[1] Univ Queensland, CRC Sensor Signal & Informat Proc, Brisbane, Qld, Australia
[2] Univ Queensland, Dept Comp Sci & Elect Engn, Brisbane, Qld, Australia
[3] Univ Melbourne, Dept Elect & Elect Engn, Parkville, Vic 3052, Australia
[4] Australian Natl Univ, CRC Robust & Adapt Syst, Canberra, ACT, Australia
[5] Australian Natl Univ, Dept Syst Engn, Res Sch Informat Sci & Engn, Canberra, ACT 2601, Australia
[6] Royal Inst Technol, S-10044 Stockholm, Sweden
[7] Linkoping Univ, Dept Elect Engn, S-58183 Linkoping, Sweden
关键词
activity; asymptotic; consistency; least squares; telecommunications; threshold; transient;
D O I
10.1109/78.720368
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We consider the LMS estimation of a channel that may be well approximated by an FIR model with only a few nonzero tap coefficients within a given delay horizon or tap length n. When the number of nonzero tap coefficients m is small compared with the delay horizon n, the performance of:the LMS estimator is greatly enhanced when this specific structure is exploited. We propose a consistent algorithm that performs identification of nonzero taps only. The results are illustrated via a simulation study.
引用
收藏
页码:2651 / 2663
页数:13
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