Tms320c6747 And Fpga Based Gps/sins Integrated Navigation System Research

According to the demand for modern warfare and navigation objects, Integrated Navigation System combines two or more of the navigation system to create a new system, the system has an excellent performance that a separate navigation system can not reach. In this paper, the GPS/SINS system based on TMS320C6747and FPGA is designed for the require of high-performance, high-precision and miniaturization.Firstly, the dissertation proposes the integrated navigation scheme based on double antenna GPS and SINS. Being different from the existing schemes combining speed and position together, the system designed here uses the two-antennae GPS attitude information to work out a complete Integrated GPS/SINS Navigation System. We can build the mathematical model according to the features of the INS and dual-antenna GPS, using the quaternion method to resolve Inertial navigation data, and using kalman filtering as data fusion algorithm for SINS and GPS.Then the paper analyses the characteristics and actual demand of GPS/SINS integrated navigation system, proposes the navigation computer design scheme based on DSP TMS320C6747and FPGA. In this system, DSP mainly process the data and FPGA is responsible for external information system acquisition. On this basis, the next section focus on the realization of DSP and FPGA hardware platform circuit, then the DSP low level driver software,serial interface software based on FPGA and integrated navigation application.At the end of the study, the performance test results showed that the proposed GPS/SINS integrated navigation system builds on DSP/FPGA is able to meet the system requirement, the system has engineering reference value and application prospect.