摘要
对信号小波分析的结果进行Radon变换,简称小波Radon变换。通常情况下,线性调频信号小波变换的结果在时间尺度图上呈现曲线的形式,而在时频图上呈现直线的形式。通过Radon变换检测时频平面上的直线,可以精确地得到调频信号的参数。仿真结果表明,小波Radon变换是一种较好的线性调频信号检测方法。
WaveletRadon transform is defined that results of wavelet analysis are Radontransformed. Results of wavelet analysis of linear chirp signals are curves on time scale scheme in general. However, Results of wavelet analysis of linear chirp signals are beelines on time frequency scheme. Radontransform can detect beeline perfectly and the parameters of linear chirp signals are obtained exactly. The simulation experiment results prove that WaveletRadon transform is a good method of linear chirp signals detection.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2003年第1期91-94,共4页
Journal of National University of Defense Technology
基金
国防重点实验室基金项目(51431020101KG01)
