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Strap down Vertical Reference System (SVRS) is a kind of Strap down Inertial Navigation System (SINS) based on inertial components. Its main function is providing attitude benchmark reference value for equipment which equipped on large moving carrier. The gyro constant drift which changes over time is the main error source of SVRS navigation. This paper puts forward an algorithm estimating gyro constant...
In order to verify the real-time capability and precision of the tightly coupled GPS/INS(Inertial Navigation System) navigation algorithm, test platform using the high performance floating-point digital signal processors produced by TI as CPU was designed for integrated navigation system. It could simulate inertial measurement unit and GPS receiver and complete many navigation algorithms efficiently...
To meet the complex requirements of the miniature embedded integrated (INS/GPS) navigation system based on DSP, all peripheral circuits were integrated in single chip of FPGA, such as logic control module, serial/parallel data conversion and FIFO(First In First Out), etc. The multi-channel UART(Universal Asynchronous Receiver Transmitter) consists of the data conversion circuit and FIFO. In addition,...
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