Title :
Polyphase signals in additive and multiplicative noise: CRLB and HOS
Author :
Swami, Ananthram
Author_Institution :
6709 La Tijera Blvd., Los Angeles, CA, USA
Abstract :
We derive closed-form expressions for the large sample CRLB for the estimates of the parameters of a multi-component polyphase signal observed in additive and multiplicative white Gaussian noise. In the absence of additive noise, perfect estimation may be possible (i.e., CRLB is 0) under some conditions. Extensions to the non-Gaussian and complex-valued cases are also given. The performance of some HOS-based estimators is analyzed
Keywords :
Gaussian noise; higher order statistics; parameter estimation; signal processing; white noise; CRLB; HOS; additive noise; complex-valued noise; higher order statistics; multi-component polyphase signal; multiplicative noise; non-Gaussian noise; parameter estimation; white Gaussian noise; Additive noise; Chirp; Closed-form solution; Colored noise; Dispersion; Gaussian noise; Noise level; Parameter estimation; Signal analysis; Taylor series;
Conference_Titel :
Digital Signal Processing Workshop, 1994., 1994 Sixth IEEE
Conference_Location :
Yosemite National Park, CA
Print_ISBN :
0-7803-1948-6
DOI :
10.1109/DSP.1994.379862
