TIME-FREQUENCY DESIGN AND PROCESSING OF SIGNALS VIA SMOOTHED WIGNER DISTRIBUTIONS

被引：28

作者：

KRATTENTHALER, W ^{[1
]}

HLAWATSCH, F ^{[1
]}

机构：

[1] VIENNA TECH UNIV,INST NACHRICHTENTECH & HOCHFREQUENZTECH,A-1040 VIENNA,AUSTRIA

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1993年 / 41卷 / 01期

关键词：

D O I：

10.1109/TSP.1993.193145

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：

The Wigner distribution (WD) and WD-based signal synthesis can be used for designing and processing signals in a joint time-frequency domain. Unfortunately, the performance of this method is adversely affected by the occurrence of interference terms (IT's) in the WD. This paper provides an analysis of IT effects in WD-based signal synthesis, and shows that IT effects can be substantially reduced by using a smoothed Wigner distribution (SWD) instead of the WD. An iterative algorithm for SWD-based signal synthesis is presented, and the improvement over WD-based signal synthesis is verified via computer simulation.

引用

页码：278 / 287

页数：10

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