速变信号的小波分析应用研究

Application of wavelet to analysing fast varying signal

遥测速变参数处理方法大多基于经典分析方法,文中采用现代时频分析方法对遥测动态环境参数进行分析,对比算法在瞬态信号成分检测方面的优势,小波变换比傅立叶变换更适合分析非平稳信号,尤其是含瞬态或突变成分的信号.

The peocessing method of rapidly-varied parameter in telemetry is mostly based on the classical signal analytical mothed. This paper adopts modern time-frequency analytical mothod for the analysis of the dynamic environment parameter of telemetry and compares the arithmetic advantage in the twinkling signal component checking. It＇s more suitable to use wavelet transform in unsteady signal analysis than Fourier transform, especially with the twinkling or jumping signal included.