Title :
Comparative study of some discrete instantaneous frequency estimators
Author :
Lunji Qu ; Kot, Alex C. ; Lum, Soon Hwa
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
The instantaneous frequency (IF) of a signal is often used as an aid to time-frequency analysis of non-stationary signals. In this paper the comparative study of the optimal discrete IF (DIF) estimator, the Kay-Tretter DIF estimator, the central finite difference (CFD) DIF estimator and the smoothed CFD DIF estimator are presented in the case of a signal distorted by Gaussian white noise. The advantages and disadvantages of these commonly used DIF estimators are concluded
Keywords :
Gaussian noise; finite difference methods; frequency estimation; interference (signal); signal processing; smoothing methods; time-frequency analysis; white noise; Gaussian white noise; Kay-Tretter DIF estimator; central finite difference DIF estimator; discrete instantaneous frequency estimators; nonstationary signals; optimal discrete IF estimator; smoothed CFD DIF estimator; time-frequency analysis; Additive white noise; Computational fluid dynamics; Finite difference methods; Frequency estimation; Gaussian noise; Maximum likelihood estimation; Signal processing; Speech; Time frequency analysis; White noise;
Conference_Titel :
Networks, 1995. Theme: Electrotechnology 2000: Communications and Networks. [in conjunction with the] International Conference on Information Engineering., Proceedings of IEEE Singapore International
Print_ISBN :
0-7803-2579-6
DOI :
10.1109/SICON.1995.526360
