[1]刘小会,许蕾,刘海颖,等.基于CORDIC改进算法的反正切函数在FPGA中的实现[J].计算机技术与发展,2013,(11):103. LIU Xiao-hui[],XU Lei[],LIU Hai-ying[],et al.Realization of Arc-tangent Function Based on Improved CORDIC Algorithm in FPGA[J].,2013,(09):103.