基于新算法的P码序列捕获处理器设计与实现  

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

作　　者：刘芳[1] 冯永新[2] 潘成胜[1] 钱博[1] 

机构地区：[1]南京理工大学控制科学与工程系,南京210094 [2]沈阳理工大学,辽宁沈阳110168

出　　处：《系统仿真学报》2008年第10期2659-2661,2665,共4页Journal of System Simulation

基　　金：国家863重大专项基金

摘　　要：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。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.

关 键 词：GPS 直接捕获 循环相关 P码 IP核 

分 类 号：TN914.53[电子电信—通信与信息系统] TN96[电子电信—信息与通信工程]