多码环架构对扩频捕获性能的优化

为了提高扩频系统的捕获性能，可通过在扩频接收机中采用多码环架构或提高PN码捕获电路精度这两种方式达到目的。提出了在扩频接收机中采用多码环架构的设计方法，采用这种方式可以在降低码捕获电路精度要求、简化码捕获电路设计并减少近50%的系统资源消耗的基础上成倍地提高捕获性能。

Optimization of Acquisition Performance of Spread Spectrum System by Using Multiple PN Code Loops Architecture

In order to improve the acquisition performance of spread spectrum system, there are two ways that are improving the PN code acquisition precision or using the architecture of multiple PN code loop in the receiver. In this paper, a design method of multiple PN code loops which are applied to spread spectrum receiver is introduced. With this method, the acquisition circuit can be simplified, the accuracy requirement of the loop can be reduced and the resource consumption is reduced by 50%, but the performance of the system will be improved exponentially.