一种基于CORDIC算法的自整角机信号解码研究

Study on synchro signal decoding based on CORDIC algorithm

自整角机是一种用于角度测量的微型电机,其输出包含角度的模拟信号经过简单处理和A/D变换后再通过CORDI算法解码。CODIC算法具有精度灵活可调、运算速度快、硬件实现简单等优点;通过对CORDC算法角度及对自整角机输出信号的象限修正,设计了一种基于CORDIC算法流水线技术的自整角机解码算法,并以FPGA为平台进行模拟和仿真,验证其准确性及可行性。

Synchro is a miniature motor used for measurement of angle. It outputs analog signal transformed by A / D transform,and then uses the CORDIC algorithm for decoding. The CORDIC algorithm has the advantages of flexible and adjustable precision,fast calculation speed and easy hardware realization. Based on the CORDIC algorithm and synchro outputs angles correction in quadrants,this article designs a CORDIC algorithm based on pipelining for decoding,and simulates and verifies the accuracy and feasibility of the algorithm by FPGA.