Title :
A mobile communications application of time-varying higher order spectra to FM signals affected by multiplicative noise
Author :
Senadji, B. ; Boashash, B.
Author_Institution :
Signal Process. Res. Centre, Queensland Univ. of Technol., Brisbane, Qld., Australia
Abstract :
A new method for estimating the instantaneous frequency (IF) of mobile communication signals affected by Rayleigh multiplicative noise is proposed. The method is based on the use of time-varying higher-order spectra (TV-HOS) and particularly the Wigner-Ville trispectrum (WVT). The performance of the method is evaluated under the assumption of linear FM signals affected by stationary Rayleigh multiplicative noise. It is shown that the WVT allows for optimal estimation of the IF of the signal
Keywords :
Rayleigh channels; Wigner distribution; fading; frequency estimation; frequency modulation; land mobile radio; noise; radiofrequency interference; spectral analysis; IF; Rayleigh multiplicative noise; TV-HOS; WVT; Wigner-Ville trispectrum; instantaneous frequency; linear FM signals; mobile communications application; optimal estimation; performance; stationary Rayleigh multiplicative noise; time-varying higher order spectra; time-varying higher-order spectra; Australia; Diversity reception; Frequency; Land mobile radio; Mobile communication; Multipath channels; Random processes; Rayleigh channels; Rayleigh scattering; Signal processing;
Conference_Titel :
Information, Communications and Signal Processing, 1997. ICICS., Proceedings of 1997 International Conference on
Print_ISBN :
0-7803-3676-3
DOI :
10.1109/ICICS.1997.652240
