基于小波多尺度检测特性的扩频序列捕获研究

根据小波分析的特点，将小波检测引入扩频序列捕获系统中，利用扩频码捕获时信号(调制信号)和未捕获时信号(高斯白噪声)的小波变换的不同特征，结合多分辨分析，设立小波变换阈值，正确识别捕获状态。并且，对这种利用小波检测的捕获方法进行了仿真实验，分析与实验表明这种方法具有一定的理论价值和实用价值。

Acquisition of spread spectrum sequence based on characteristic of wavelet multiscale detection

This paper introduces wavelet detection in the system of spread-spectrum sequence acquisition, because wavelet analysis provides a basis that there are different features between the acquisition signal (modulate signal) and the unacquisition signal (white noise) for estimating code acquisition. The paper accurately identifies the acquisition state by using multiresolution analysis and figuring out the wavelet threshold value, then tests this acquisition method using wavelet detection by computer simulation, the analysis and experiment results indicate that this method have theory value and applied value.