Title :
Performance analysis of cyclic estimators for harmonics in multiplicative and additive noise
Author :
Swami, Ananthram ; Ghogho, Mounir
Author_Institution :
Army Res. Lab., Adelphi, MD, USA
Abstract :
The problem of interest is the estimation of the parameters of harmonics in the presence of additive and multiplicative noise. Expressions for the asymptotic performance of the cyclic-variance (CV) based method are derived when the multiplicative noise has a non-zero mean. We show that the CV-based method may yield more accurate results than methods based on the cyclic mean (CM), depending upon the color of the noise and the intrinsic and local SNRs. The performance is analyzed in detail for several special cases of the multiplicative noise, such as white Gaussian, AR and generalized-Gaussian noise
Keywords :
Gaussian noise; autoregressive processes; harmonic analysis; parameter estimation; signal processing; white noise; AR noise; SNR; additive noise; asymptotic performance; colored noise; cyclic estimators; cyclic mean method; cyclic-variance based method; discrete-time harmonic signal; generalized-Gaussian noise; harmonics; multiplicative noise; nonzero mean; parameter estimation; performance analysis; white Gaussian noise; Additive noise; Colored noise; Educational institutions; Frequency estimation; Gaussian noise; Milling machines; Parameter estimation; Performance analysis; Powders; Signal processing;
Conference_Titel :
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4428-6
DOI :
10.1109/ICASSP.1998.681611
