摘要
基于SPWM对称规则采样原理,经过分析、改进,提出了一种新的SPWM波生成算法.应用C51单片机,通过程序定时算法和延时分析,产生三相SPWM波.利用磁旋转编码器提供天线位置和伺服电机的转子位置信号,实现了移动天线伺服系统的有效控制,并经实验结果证明了该方案的简单性和可行性.
After being analyzed and improved, a new SPWM algorithm based on symmetric regular sampling is presented. With the timing program and the program-delay analysis, three-phase SPWM waveforms output from single chip unit C51. The antenna position and the position of the servo motor rotor are supplied by the magnetism revolving encoder. And the mobile antenna servo system is controlled efficiently. The scheme is proved to be simple and feasible by the experimental result.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2007年第2期222-225,共4页
Journal of Harbin University of Commerce：Natural Sciences Edition
关键词
移动天线
SPWM
量化
mobile antenna
SPWM
quantification
