.dsp / Cpld Applications In Inertial Navigation

The paper mainly focuses on the software and hardware design that the data real-time processes of the SINS, using the DSP and the CPLD as the digital hardware platform.First, the paper describes the development of the SINS and the practical engineering background of the thesis, emphatically analyses and fomulates Mechanical Calibration Equation of the SINS. Then, the author specially studies the characteristic of system architecture of the DSP, paints schematic principle diagram and PCB diagram of the hardware circuit system, writes the program decoding and partial data processing of the CPLD, adopting Verilog HDL hardware describing language. In CCS'C3x-'C4x compile environment, using composite programming method of C and Assemble language, the author debugs each port of the hardware circuit system, analyses interrupts mechanism and bootloader mechanism of the DSP, develops the system of generating flight orbit data. Finally, combining algorithm flow-chart of the SINS, all work realizes test and validation of the hardware circuit system.The test result demonstrates that the real-time data processing system can satisfy the request of high precision, rapid speed, high reliability of the SINS, make the SINS having great value of application, better future of market and great significance of military.