时频域检测LFM信号方法的比较和分析  

Comparison and analysis of time-frequency analysis methods for detecting LFM signal

作　　者：胡元奎[1] 郑生华[1] 靳学明[1] 

机构地区：[1]中国电子科技集团第38研究所,安徽合肥230031

出　　处：《航天电子对抗》2008年第3期29-31,47,共4页Aerospace Electronic Warfare

摘　　要：从计算量、存储量、运算速度、参数估计精度,以及工程可实现性等方面,比较分析了用于LFM信号检测的时频分析方法以及直线检测方法,并针对STFT-Hough方法分析其对LFM信号的处理得益和参数估计精度。仿真验证试验结果支持了文中的分析。The time-frequency analysis methods and line detection methods are compared and analyzed which are widely used for detecting and estimating the LFM signal from the computation, demand of storage space,speed of computing,accuracy of estimation and the reliability of engineering. The gain of STFT-Hough for LFM and the accuracy of parameter estimation are presented. The simulation experiments support the analysis results.

关 键 词：时频分析 LFM STFT—Hough 

分 类 号：TN911[电子电信—通信与信息系统]