摘要
近年来,对高阶谱(Higher-Order spectrum或Polyspectra)估计技术的研究得到新的发展,且高阶统计方法在许多领域中得到应用.本文对高阶谱估计技术的发展历史进行了简单的回顾,并着重介绍了双谱(Bispectrum)也称三阶谱(Third-Order Spectrum)估计方法的新进展.
During recent years, the growth of research in higher order spectral estimation technique has been further developed and higher order statistics has found wide application in many diverse fields. In this paper, a brief review of developing history of higher order spectral estimation technique is provided and the advance of methods of bispectrum (third order spectrum) estimation is emphatically presented.
出处
《北方交通大学学报》
CSCD
北大核心
1991年第2期29-44,共16页
Journal of Northern Jiaotong University
关键词
高阶谱
多谱
双谱
高阶累积量
probability theory
stochastic process
spectral density
higher order spectra
higher order cumulants
