射频信号的S变换检测  

RF Signals Detection Based on the S Tranform

作　　者：谭阳红[1] 何怡刚[1] 雷可君[2] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410012 [2]吉首大学物理科学与信息工程学院,湖南吉首416000

出　　处：《计算机工程与科学》2010年第3期124-126,共3页Computer Engineering & Science

基　　金：国家自然科学基金资助项目(50677014);教育部博士点专项基金资助项目(20060532002);新世纪优秀人才基金资助项目(NCET-04-0767);湖南省自然科学基金资助项目(07JJ6132;06JJ2024;03GKY3115;05GK2005);国家863计划资助项目(2006AA04A104)

摘　　要：本文针对射频(RF)信号的频率高、瞬变等特点,提出了一种基于S变换的射频信号检测方法。仿真结果表明,S变换具有很好的时频分析能力,能很好地分辩出射频信号的时频性能。It is hard to detect the time-frequency properties of RF signals because of their characteristics of high frequency and transience. A novel method focusing on the RF signals detection based on the S-tranform is presented in the paper. MATL.AB results show that the S-transform is unique in that it provides frequency-dependent resolution, which correctly identifies the time-frequency performance of the RF signals.

关 键 词：射频信号 S变换 时频分析 

分 类 号：TN943.6[电子电信—信号与信息处理] TN911.23[电子电信—信息与通信工程]