基于新算法的P码序列捕获处理器设计与实现

通常P码的捕获是利用C/A码来完成的。但是,考虑到实际的战场可用性,利用C/A码引导的P码捕获方式不再具有较好的可靠性。同时考虑到P码信号的特点,对P码信号进行直接、快速的相关捕获是首先要解决的问题。因此,在研究相应理论的基础上,对提出的新的P码直接捕获算法进行硬件设计,实现了P码序列捕获处理器。在实验室环境下对序列捕获处理器进行测试,结果验证序列捕获处理器可以有效捕获GPSP码信号。

Design and Actualize of P Code Sequence Acquisition Processor Based on New Algorithm

P code is usually captured depending on C/A code. But, considering the practical application in the war, the method of using C/A code to acquire P code has not been credible. In the same time considering the characteristic of P code, it is important to directly and fast capture the P code. So, on the basis of researching the relevant theory, a new direct capture algorithm was designed on the hardware and the sequence acquisition processor was actualized. The sequence acquisition processor was tested in lab-condition, the conclusion which it is effective was got.