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

共 50 条

[21] Direction finding of nonstationary signals using spatial time-frequency distributions and morphological image processing
Heidenreich, Philipp
Cirillo, Luke A.
Zoubir, Abdelhak M.
2007 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOL III, PTS 1-3, PROCEEDINGS, 2007, : 1137 - +
[22] Applications of Positive Time-Frequency Distributions to Speech Processing
Pitton, James W.
Atlas, Les E.
Loughlin, Patrick J.
IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, 1994, 2 (04): : 554 - 566
[23] Controlled multifunctional processing of causal signals on the basis of nonlinear (quadratic and cubic) time-frequency distributions
Ryzhak, I. S.
JOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS, 2006, 51 (08) : 895 - 908
[24] TIME-FREQUENCY PROCESSING METHOD OF EPILEPTIC EEG SIGNALS
Bousbia-Salah, Assya
Talha-Kedir, Malika
BIOMEDICAL ENGINEERING-APPLICATIONS BASIS COMMUNICATIONS, 2015, 27 (02):
[25] On complex demodulation and time-frequency distributions for broadband reflectometry signals
Bizarro, JPS
Figueiredo, AC
REVIEW OF SCIENTIFIC INSTRUMENTS, 1999, 70 (01): : 1030 - 1033
[26] Time-frequency distributions in the classification of epilepsy from EEG signals
Musselman, Marcus
Djurdjanovic, Dragan
EXPERT SYSTEMS WITH APPLICATIONS, 2012, 39 (13) : 11413 - 11422
[27] On complex demodulation and time-frequency distributions for broadband reflectometry signals
Rev Sci Instrum, 1 pt 2 (1030):
[28] RADON TRANSFORMATION OF TIME-FREQUENCY DISTRIBUTIONS FOR ANALYSIS OF MULTICOMPONENT SIGNALS
WOOD, JC
BARRY, DT
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1994, 42 (11) : 3166 - 3177
[29] CLASSIFICATION OF EEG SIGNALS USING ADAPTIVE TIME-FREQUENCY DISTRIBUTIONS
Khan, Nabeel A.
Ali, Sadiq
METROLOGY AND MEASUREMENT SYSTEMS, 2016, 23 (02) : 251 - 260
[30] THE TIME-FREQUENCY DISTRIBUTIONS OF NONSTATIONARY SIGNALS BASED ON A BESSEL KERNEL
GUO, ZY
DURAND, LG
LEE, HC
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1994, 42 (07) : 1700 - 1707

← 1 2 3 4 5 →