摘要
分析了二通道采样系统的基本原理,对其中的信号流程进行了数学推导,研究了基于Daubechies小波的二通道采样系统,对其中小波分解和重构与滤波器组的关系进行了数学分析,用MATLAB仿真验证了采用db4小波对一个超宽带冲激信号进行二通道采样的处理结果。
This paper analyzes the basic principle of two-channel data sampling system,derives signal processing flow based on mathematics,studies the two-channel sampling system based on Daubechies wavelet,performs the mathematic analysis to the relationship between filter groups and wavelet decomposition and reconstruction,validates the processing result of using db4 wavelet to perform the two-channel sampling for an ultra-wideband impulse signal through the simulation based on MATLAB.
出处
《舰船电子对抗》
2012年第1期109-112,共4页
Shipboard Electronic Countermeasure
关键词
小波变换
数据采集
滤波器组
wavelet transform
data sampling
filter group
