引入 DDS 算法的旋转 LED 空间稳定成像方法研究

摘要

提出一种引入直接数字频率合成算法(DDS：Direct Digital Frequency Synthesis)的旋转 LED 高精度空间成像方法。巧妙地将三维物体的旋转 LED 空间成像问题转化为阵列信号的生成问题，并通过引入 DDS 算法输出高精度阵列信号，实现了旋转 LED 长时间稳定的高精度空间成像。经仿真实验和线阵列旋转 LED 成像平台实验的结果表明，与现有方法相比，本文方法简单、可靠，空间成像稳定。%This paper offers a high precision imaging method for rotating LED based on DDS algo-rithm.It transforms the problem of rotating LED space imaging for three-dimensional object into Ar-ray signal generation problem and outputs high precision array signal by introducing DDS algorithm, realizing high accuracy spatial imaging of rotating LED stably for a long time.Simulation experiments and line array rotating LED imaging platform experiment results show that,compared with the exist-ing method,this method is simple,reliable,and stable.