Wigner-Hough transform based on slice's entropy and its application to multi-LFM signal detection

Hongwei Wang; Xiangyu Fan; You Chen; Yuanzhi Yang

首页> 中文期刊> 《系统工程与电子技术：英文版》 >Wigner-Hough transform based on slice's entropy and its application to multi-LFM signal detection

Wigner-Hough transform based on slice's entropy and its application to multi-LFM signal detection

开具论文收录证明 >>

期刊封面封底目录下载 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

To enhance the capacity of the radar-reconnaissance interception receiver recognizing linear frequency modulated(LFM) at a low signal-noise ratio, this paper presents WignerHough transform(WHT) of the LFM signal and its corresponding characteristics, derives the probability density functions of the LFM signal and Gaussian white noise within WHT based on entropy(WHTE), dimension under different assumptions and puts forward a WHT algorithm based on entropy of slice to improve the capacity of detecting the LFM signal. Entropy of the WHT domain slice is adopted to assess the information size of polar radius or angle slice, which is converted into the weight factor to weight every slice. Double-deck weight is used to weaken the influences of noise and disturbance terms and WHTE treatment and signal detection procedure are also summarized. The rationality of the algorithm is demonstrated through theoretical analysis and formula derivation, the efficiency of the algorithm is verified by simulation comparison between WHT, fractional Fourier transform and periodic WHT, and it is highlighted that the WHTE algorithm has better detection accuracy and range of application against strong noise background.

著录项

来源
《系统工程与电子技术：英文版》 |2017年第4期|634-642|共9页
作者
Hongwei Wang; Xiangyu Fan; You Chen; Yuanzhi Yang;
展开▼
作者单位

Aeronautics and Astronautics Engineering College;

Air Force Engineering University;

College of Electronic and Information;

Northwestern Polytechnical University;

展开▼
原文格式 PDF
正文语种 chi
中图分类系统工程;
关键词
low; signal-to-noise; ratio; linear; frequency; modulated; signal; probability; density; function; Wigner-Hough; transform(WHT); signal; detection; entropy; of; slice;

Wigner-Hough transform based on slice's entropy and its application to multi-LFM signal detection

摘要

著录项

相关主题

期刊订阅