Automatic quality assessment and optimisation of quadratic time-frequency representations

被引：11

作者：

Malnar, D. ^{[1
]}

Sucic, V. ^{[1
]}

O'Toole, J. M. ^{[2
]}

机构：

[1] Fac Engn, Rijeka, Croatia

[2] Natl Univ Ireland Univ Coll Cork, Cork, Ireland

来源：

ELECTRONICS LETTERS | 2015年 / 51卷 / 13期

关键词：

time-frequency analysis; evolutionary computation; Wigner distribution; signal processing; automatic quality assessment; quadratic time-frequency representations; smoothed-pseudo Wigner-Ville distribution; TFR; WVD; differential evolution algorithm; DE algorithm;

D O I：

10.1049/el.2015.0489

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：

A fully automatic method for optimising the smoothed-pseudo Wigner-Ville distribution is presented. An alternative view on time-frequency representations (TFRs) through correlation intensity landscapes is offered, and the notion of wanted and unwanted correlations and their balance is introduced which is introduced as the measure of quality. The problem of optimising TFRs is then formulated as the cost function based on this measure. With the differential evolution algorithm as the solver, the method's performance is tested on synthetic and real-life signals.

引用

页码：1029 / 1031

页数：2

共 4 条

[1]

Boashash B, 2003, TIME FREQUENCY SIGNAL ANALYSIS AND PROCESSING: A COMPREHENSIVE REFERENCE, P627

[2] Resolution measure criteria for the objective assessment of the performance of quadratic time-frequency distributions [J].