Design of software of GPS receiver based on GP4020
Tong Liu · Journal of Chinese Inertial Technology · 2006
This thesis introduces the development of a GPS receiver based on ARM,describes the technique of software design and signal processing in detail,and gives out the software structure and program flow chart of GPS receiver.In order to acquire and track the spread spectrum signal rapidly,the changing band-width tracking strategy is adopted,which uses the quadrature frequency discriminator,Cross Product and Costas together to keep the carrier loop.The result shows that the software can meet the requirement for data processing of GPS receiver.