基于CORDIC的旋转变压器解码算法研究

CORDIC算法具有速度快、精度灵活可调、硬件实现简单等优点。针对传统的测角系统的精度不足或者价格较高的问题,通过对CORDIC算法角度扩展和旋转变压器输出信号的象限修正的基础上,设计一种基于CORDIC流水线技术的旋转变压器解码算法,并以FPGA为平台实现旋转变压器解码算法。通过在Matlab和Quartus仿真验证了其可行性和准确性。

Decoding algorithm of resolvers based on CORDIC

CORDIC algorithm has the advantages of high speed,adjustable precision flexible,simple hardware implementation and so on.In connection with the issue of the precision in traditional angle measuring system is inadequate and the price is higher.Through expanding the CORDIC algorithm for angle and modifying the resolvers＇ output quadrant,the decoding algorithm is use the CORDIC pipeline technology for resolvers,and to achieve resolver decoding algorithm on the FPGA platform.Finally the simulation results in the Matlab and the Quartus verify the feasibility and accuracy of the decoding algorithm.