A generalized MVDR spectrum

被引：99

作者：

Benesty, J ^{[1
]}

Chen, JD

Huang, YT

机构：

[1] Univ Quebec, INRS, EMT, Montreal, PQ H5A 1K6, Canada

[2] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

IEEE SIGNAL PROCESSING LETTERS | 2005年 / 12卷 / 12期

关键词：

capon; coherence function; cross-spectrum; minimum variance distortionless response (MVDR); periodogram; spectral estimation; spectrum;

D O I：

10.1109/LSP.2005.859517

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：

The minimum variance distortionless response (MVDR) approach is very popular in array processing. It is also employed in spectral estimation where the Fourier matrix is used in the optimization process. First, we give a general form of the MVDR where any unitary matrix can be used to estimate the spectrum. Second and most importantly, we show how the MVDR method can be used to estimate the magnitude squared coherence function, which is very useful in so many applications but so few methods exist to estimate it. Simulations show that our algorithm gives much more reliable results than the one based on the popular Welch's method.

引用

页码：827 / 830

页数：4

共 9 条

[1] HIGH-RESOLUTION FREQUENCY-WAVENUMBER SPECTRUM ANALYSIS [J].