Title :
Estimation of the time-varying frequency of a signal: the Cramer-Rao bound and the application of Wigner distribution
Author :
Wong, Kon Max ; Jin, Qu
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada
fDate :
3/1/1990 12:00:00 AM
Abstract :
The problem of estimating the time-varying frequency of a signal is addressed. The Cramer-Rao bound of such an estimate is developed. The Wigner distribution is applied to this problem. A theoretical analysis which derives the bias and variance resulting from the use of the Wigner distribution is performed. Computer simulation results that verify the performance of the method are presented
Keywords :
frequency modulation; random noise; signal processing; spectral analysis; Cramer-Rao bound; FM signals; SNR; Wigner distribution; bias/variance analysis; signal processing; spectral analysis; time-varying frequency; white Gaussian noise; Analysis of variance; Computer simulation; Frequency estimation; Frequency measurement; Gaussian noise; Performance analysis; Signal analysis; Sonar; Spaceborne radar; White noise;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on
