Title :
Multicomponent IF estimation: a statistical comparison in the quadratic class of time-frequency distributions
Author :
Hussain, Zuhir M. ; Boashash, Boualem
Author_Institution :
Signal Process. Res. Centre, Queensland Univ. of Technol., Brisbane, Qld., Australia
Abstract :
An adaptive approach to the estimation of the instantaneous frequency (IF) of multicomponent FM signals in additive Gaussian noise has been recently analyzed using a time-only kernel. In this paper we justify applying this approach to other two members of the quadratic class of time-frequency distributions: the spectrogram and Choi-Williams distribution. We also compare the statistical performance of these distributions using the bias, the variance, and the optimum lag window lengths of their IF estimators
Keywords :
Gaussian noise; adaptive signal detection; time-frequency analysis; Choi-Williams distribution; adaptive approach; additive Gaussian noise; bias; instantaneous frequency; multicomponent FM signals; multicomponent IF estimation; optimum lag window lengths; quadratic class; spectrogram; statistical comparison; time-frequency distributions; variance; Additive noise; Frequency estimation; Gaussian noise; Kernel; Passband; Programmable control; Signal analysis; Signal processing; Spectrogram; Time frequency analysis;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921018
