基于TMS320C6701的星敏感器电路系统的设计

A Circuit System of Star Sensor Based on TMS320C6701

介绍了TMS320C6701芯片的主要功能特点及内部结构,建立了以DSP为核心的星敏感器信息处理电路系统,并在此系统中成功实现了快速的全天球星图识别。实验结果表明,在不降低星图识别率的条件下,该算法在本系统中的运行速度为0.47s,比基于RISC的星敏感器数据处理单元的速度提高近一倍。

Major function and interior structure of TMS320C6701 is introduced. Based on the DSP chip, an information processing circuit system of star sensor is developed, and a star pattern identification algorithm is implemented successfully. Results of experiments indicate that the algorithm implementation time is 0.47s in the system, and nearly 2 times fast as in the RISC based star sensor processing unit without decrease of identification rate.