Time-frequency distribution based on bi-directional Gaussian kernel and its application in instantaneous frequency estimation

被引：0
|
作者：
Li, Jiaqiang [1 ]
Jin, Ronghong [1 ]
Wang, Wei [1 ]
Geng, Junping [1 ]
Rui, Xianyi [1 ]
Yang, Guomin [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200040, Peoples R China
来源：
2006 ASIA-PACIFIC CONFERENCE ON COMMUNICATION, VOLS 1 AND 2 | 2006年
关键词：
time-frequency distribution; cross terms; instantaneous frequency estimation;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：250 / +
页数：2
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