RELATIONSHIPS INVOLVING 3RD MOMENTS AND BISPECTRA OF A HARMONIC PROCESS

被引：70

作者：

ELGAR, S

机构：

[1] Washington State Univ, Pullman, WA,, USA, Washington State Univ, Pullman, WA, USA

来源：

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING | 1987年 / 35卷 / 12期

关键词：

PROBABILITY - Random Processes - SIGNAL PROCESSING - Digital Techniques;

D O I：

10.1109/TASSP.1987.1165090

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Relationships between third moments of a harmonic random process and its bispectrum are presented. The skewness and asymmetry (with respect to a vertical axis) of the process and its derivative can be obtained by integrating the real, imaginary, and frequency-scaled real and imaginary parts of the bispectrum, respectively. Triads of Fourier coefficients containing a high-frequency component can contribute substantially to the third moments of the derivative of the process.

引用

页码：1725 / 1726

页数：2