OVERSAMPLED GABOR REPRESENTATION FOR TRANSIENT SIGNALS

被引：25

作者：

FRIEDLANDER, B ^{[1
]}

ZEIRA, A ^{[1
]}

机构：

[1] SIGNAL PROC TECHNOL LTD,PALO ALTO,CA 94303

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1995年 / 43卷 / 09期

关键词：

D O I：

10.1109/78.414770

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, we consider the Gabor representation that uses a one sided exponential window for detection and analysis of transient signals. Earlier results on the critically sampled case are extended to the more practically useful oversampled case. For oversampling by an integer factor, we derive an explicit analytical expression for the dual window (dual frame) function required for computing the Gabor representation. Based on this expression we develop an efficient procedure for computing the Gabor coefficients. Finally, we demonstrate the performance of the method by numerical examples.

引用

页码：2088 / 2094

页数：7

共 19 条

[1] GABOR EXPANSION OF A SIGNAL INTO GAUSSIAN ELEMENTARY SIGNALS [J].