控制工程 ›› 2019, Vol. 26 ›› Issue (5): 978-983.
• 决策与控制一体化系统 • 上一篇 下一篇
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摘要： 高精度相位的求解属于飞秒激光跟踪仪中测距系统的重要部分，为使定点DSP中的相位精度满足要求，对传统数字旋转坐标计算机(The Coordinate Rotation Digital Computer, CORDIC)算法进行了研究，基于传统CORDIC算法反正切基提出了混合基算法并验证了其可行性，在TMS320VC5402上实现了两种算法并对比了两者的性能。研究表明，混合基算法不但可以在相同迭代次数的情况下取得与传统算法一致的精度，还能够降低程序运行时间和硬件开销。
关键词: 测距, 定点DSP, 数字旋转坐标, 混合基
Abstract: The solution of high precision phase belongs to an important part of the femtosecond laser tracker measurement system, in order to meet the requirements of phase precision in fixed-point DSP, the coordinate rotational digital computer (CORDIC) algorithm are studied. Based on the traditional CORDIC algorithm anyway, the mixed radix algorithm is proposed and its feasibility is verified. Two algorithms are realized on TMS320VC5402 and the performance of both are compared. The research shows that the hybrid algorithm can not only obtain the same accuracy as the traditional algorithm, and also can reduce the running time and hardware cost of the program.
Key words: Ranging; fixed point DSP, digital rotating coordinate, mixed base
胡晓芳. 基于DSP的混合基数字旋转坐标定位算法[J]. 控制工程, 2019, 26(5): 978-983.
HU Xiao-fang. A Hybrid Digital Rotation Coordinate Positioning Algorithm Based on DSP[J]. Control Engineering of China, 2019, 26(5): 978-983.
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链接本文: http://journal13.magtech.org.cn/Jweb_kzgc/CN/
http://journal13.magtech.org.cn/Jweb_kzgc/CN/Y2019/V26/I5/978
