Title :
Spectral analysis by mixtures of higher order moments
Author :
Scarano, G. ; Cusani, R. ; Laurenti, A.
Author_Institution :
CNR, Rome, Italy
Abstract :
The complementary aspects of spectrum estimation based on higher-order order statistics are considered. Higher-order analysis of stochastic array data is formalized in a general fashion through the introduction of the class of hybrid nonlinear (HNL) moments. HNL moments comprise, as a special case, slice cumulants and their mixtures. In this framework, the case of joint use of covariance and fourth-order slice cumulant is handled in a simple and direct way. Simulation results confirm the theoretical analysis
Keywords :
parameter estimation; spectral analysis; statistical analysis; covariance; fourth-order slice cumulant; higher-order order statistics; hybrid nonlinear moments; mixtures of higher order moments; spectral analysis; spectrum estimation; stochastic array data; Additive noise; Amplitude estimation; Analytical models; Covariance matrix; Direction of arrival estimation; Frequency estimation; Higher order statistics; Noise level; Spectral analysis; Stochastic processes; Vectors;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.116066
