Title :
New results on employing cumulants for retrieving sinusoids in colored non-Gaussian noise
Author :
Gharieb, Reda R.
Author_Institution :
Dept. of Electr. & Electron. Eng., Assiut Univ., Egypt
fDate :
7/1/2000 12:00:00 AM
Abstract :
A novel analysis is presented, which shows that signals consisting of sinusoids plus non-Gaussian noise have a new signal-to-noise ratio (NSNR) associated with their fourth-order cumulants. This NSNR is a multiple of the original SNR when the noise is colored and the original SNR is equal to or greater than one. Therefore, employing cumulants for harmonic retrieval problems is now an approach capable of handling not only Gaussian noise but also colored non-Gaussian noise. The presented analysis is verified via computer simulations
Keywords :
frequency estimation; harmonic analysis; higher order statistics; random noise; signal processing; colored non-Gaussian noise; computer simulation; cumulants; fourth-order cumulants; frequency estimation; harmonic retrieval; new signal-to-noise ratio; sinusoids retrieval; Additive noise; Colored noise; Computer simulation; Frequency estimation; Gaussian noise; Geophysical signal processing; Higher order statistics; Radar signal processing; Signal analysis; Signal to noise ratio;
Journal_Title :
Signal Processing, IEEE Transactions on
