现代电子技术2016，Vol.39Issue(23)：5-8,12,5.DOI:10.16652/j.issn.1004-373x.2016.23.002
脉冲噪声下基于FLO-WHT的雷达回波LMFS检测
FLO-WHT based radar echo LMFS detection in impulse noise
摘要
Abstract
The linear frequency⁃modulation signal(LMFS)is a common form of radar echo signal,and the Wigner⁃Hough transform(WHT)is commonly used to detect the LMFS. The spike impulse noise in radar echo follows α stable distribution in complex environment,but the performance of the WHT will degenerate in this noise environment. The fractional lower⁃order pseudo Wigner⁃Ville time⁃frequency distribution(FLO⁃PWVD)method is proposed in this paper,which can work in stable dis⁃tribution noise environment. The new method of fractional lower⁃order pseudo Wigner⁃Hough transform (FLO⁃PWHT) is pro⁃posed based on Hough transform. The FLO⁃PWHT method was adopted to detect the multiple LMFSs in impulse noise environ⁃ment. The computer simulation results show that the proposed FLO⁃PWHT method has better performance than the existing PWHT method,it can work better in the impulse noise environment,and has a certain tenacity.关键词
雷达回波/线性调频信号/时频分布/α稳定分布/信号检测Key words
radar echo/linear frequency-modulated signal/time-frequency distribution/α stable distribution/signal detection分类
信息技术与安全科学引用本文复制引用
龙俊波,汪海滨..脉冲噪声下基于FLO-WHT的雷达回波LMFS检测[J].现代电子技术,2016,39(23):5-8,12,5.基金项目
国家自然科学基金（61261046）；江西省自然科学基金（20142BAB207006）；江西省教育厅青年科技基金资助项目（GJJ14739）；九江学院科技项目 （）
