Research Of High Dynamic GPS Receiver And Hardware Implementation

Global Positioning System (GPS) provides accurate positioning and navigation services for the whole world since it has been set up. This system finally solves the problem of positioning and navigation on the earth. In modern life, it plays an important role in the many fields such as traffic, irrigation and geological prospecting, especially an irreplaceable role in aviation, aerospace and national defense. The GPS receiver, which is the core part of the GPS, is often used in the low dynamic application for civil use. While the application of GPS receiver in the high dynamic for aerospace and national defense develop slowly because of blanking off by developed country. So in this paper, there are some researches about several critical algorithms of high dynamic GPS receiver, and implement its hardware design.In this paper, the principle of GPS position is introduced at first, after then comes to the analysis of the signal configuration of this system and problems appearing in high dynamic condition. And then, there are researches of critical algorithms which include analyzing the performance of acquisition algorithm based on parallel search in time and frequency domain, comparing that acquisition algorithm with others normal acquisition algorithms, and studying the tracking algorithm. According to the research about the algorithm and to meet the requirement of high dynamic condition, the receiver's structure of function is designed, and there also be solutions for timing and data flow to guarantee that the receiver works on a highly effective and stable hardware platform.