A Real-Time Acquisition and Analysis System of BDS Original Data Based on Double Core Microprocessor

In view of the large amount of original data output by BeiDou satellite navigation receiver, a real-time acquisition and analysis system of satellite data based on double core microprocessor is designed with satellite navigation receiver UB482 and OMAP-L138 Processor in this paper. Data acquisition and data analysis are realized with the ARM core and the DSP core in OMAP-L138 Processor respectively. Starting program and application program of the double core are written. The experimental results show that the system can output analysis results including position and speed of the carrier, information of the visible satellite and so on at 1Hz frequency. On this basis, the BDS/SINS tightly-coupled integrated navigation system can be further realized.