Research Of High Dynamic GPS Receiver And Hardware Implementation

Global Positioning System (GPS) provides accurate navigation and positioning services for the whole world. This system finally solves the problem of positioning and navigation on the earth. Recently, it plays an important role in many fields such as irrigation, traffic and geological prospecting, especially an irreplaceable role in aviation and aerospace.The GPS receiver, which is the core part of the GPS, develop slowly because of blanking off by developed country, especially in aviation and aerospace.It needs to adapt to a variety of scenarios,especially in the high dynamic. As a result, there is an extremely important significance in high dynamic GPS receivers on the principles of research and analysis, and then design the hardware architecture and its implementation.This paper first describes the GPS Solution principle, and then analyzes the GPS signal structure, as well as high dynamic impact. And then, divide into several functional modules, RF front-end, AD modules, capture module, track module and PVT billing module, display control module. Then discusse the implementation of the program for each module.. 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 clock instability,power spikes to guarantee that the receiver works on a highly effective and stable hardware platform.