ON THE EFFECT OF INPUT SIGNAL CORRELATION ON WEIGHT MISADJUSTMENT IN THE RLS ALGORITHM

被引：12

作者：

ADALI, T ^{[1
]}

ARDALAN, SH ^{[1
]}

机构：

[1] XCAD CORP,CARY,NC 27511

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1995年 / 43卷 / 04期

关键词：

D O I：

10.1109/78.376851

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：

New expressions are derived for the mean weight misadjustment in the recursive least squares (RLS) algorithm for first-order Markov channel estimation. The expressions derived are general in that they take into account the correlation in the input. It is shown that the additive system noise is amplified by a correlation amplification factor that is defined as a function of the input autocorrelation matrix eigenvalues. However, input correlation has almost no effect on the misadjustment due to time-varying system weights. These results are checked by simulations demonstrating excellent agreement with the theory.

引用

页码：988 / 991

页数：4

共 20 条

[1]

ADAH T, 1992, THESIS N CAROLINA ST

[2] ANALYSIS OF A STABILIZATION TECHNIQUE FOR THE FIXED-POINT PREWINDOWED RLS ALGORITHM [J].

ADAL, T ;

ARDALAN, SH .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1991, 39 (09) :2079-2082

[3]

ADALI T, 1991, MAY P IEEE INT C ACO, P1865

[4]

ALEXANDER ST, IEEE T ACOUST SPEECH, V35, P1250

[5] FIXED-POINT ROUNDOFF ERROR ANALYSIS OF THE EXPONENTIALLY WINDOWED RLS ALGORITHM FOR TIME-VARYING SYSTEMS [J].

ARDALAN, SH ;

ALEXANDER, ST .

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1987, 35 (06) :770-783

[6] FLOATING-POINT ERROR ANALYSIS OF RECURSIVE LEAST-SQUARES AND LEAST-MEAN-SQUARES ADAPTIVE FILTERS [J].

ARDALAN, SH .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS, 1986, 33 (12) :1192-1208

[7] ANALYSIS OF THE NORMALIZED LMS ALGORITHM WITH GAUSSIAN INPUTS [J].

BERSHAD, NJ .

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1986, 34 (04) :793-806

[8] ON THE PROBABILITY DENSITY-FUNCTION OF THE LMS ADAPTIVE FILTER WEIGHTS [J].

BERSHAD, NJ ;

LIAN, ZQ .

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1989, 37 (01) :43-56

[9]

BERSHAD NJ, 1990, MAY P IEEE INT S CIR, P266

[10] A ROUNDOFF ERROR ANALYSIS OF THE LMS ADAPTIVE ALGORITHM [J].

CARAISCOS, C ;

LIU, B .

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1984, 32 (01) :34-41

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