Time-Frequency Distribution Based on Bi-directional Gaussian kernel and its application in instantaneous frequency estimation

Author

Li, Jiaqiang ; Jin, Ronghong ; Wang, Wei ; Geng, Junping ; Rui, Xianyi ; Yang, Guomin

Author_Institution

Dept. of Electron. Eng., Shanghai Jiao Tong Univ.

fYear

2006

fDate

Aug. 31 2006-Sept. 1 2006

Firstpage

1

Lastpage

4

Abstract

In this paper, a kernel based on bi-directional Gaussian function is proposed to compute time-frequency distribution (TFD) of non-stationary signals. By controlling two parameters of the kernel in time lag and frequency lag directions, the new distribution makes a good improvement in time-frequency resolution and avoids the influence of cross terms. The application in instantaneous frequency (IF) estimation also demonstrates the distribution effective. Simulation results show that the TFD has good performance

Keywords

Gaussian distribution; frequency estimation; signal resolution; time-frequency analysis; TFD; bidirectional Gaussian kernel function; instantaneous frequency estimation; time-frequency distribution; Application software; Bidirectional control; Computer simulation; Distributed computing; Energy resolution; Frequency estimation; Kernel; Signal resolution; Time frequency analysis; cross terms; instantaneous frequency estimation; time-frequency distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2006. APCC '06. Asia-Pacific Conference on

Conference_Location

Busan

Print_ISBN

1-4244-0573-4

Electronic_ISBN

1-4244-0574-2

Type

conf

DOI

10.1109/APCC.2006.255954

Filename

4023062