基于FFT的扩频信号快速捕获技术研究

在扩频通信系统中，扩频信号的快速捕获是系统功能实现的关键技术之一，同时也是一种非常重要的抗干扰手段。文章首先介绍了基于FFT的扩频信号快速捕获方法的原理，其次，针对具体实现中的一些难题，给出了采用平均相关处理的FFT快速捕获的具体实现方法，叙述了该方法的实现过程，并给出了仿真分析结果。

Fast Acquisition Technology to the Spread Spectrum Signal Based on the FFT

In a spread spectrum communication system,the realization of the system function needs fast acquisition to the spread spectrum signal,which is also one of the vital technologies and an important anti-jamming method.In the beginning of this paper,we describe the principles of the fast acquisition to the spread spectrum signal based on the FFT;then focused on the problems in the realization,we present a new algorithm of the FFT fast acquisition using mean correlation processing.The algorithm was described in ...