【摘要】 为解决机载天线自动对星的问题,基于TI公司TMS320LF2407芯片,设计了一种通过正交编码脉冲计数进行天线跟踪控制的具体设计方法。该设计方法采用位置环、速度环双闭环控制,以获取良好的动态响应和跟踪精度,并给出了控制系统中相应的软件设计流程图。另外,也详细给出了机载天线对星角度的具体算法。更多还原

【Abstract】 To resolve the problem of antenna aims at synchronous satellite automatically in plane,we designed control method of antenna trails based on TMS320LF2407 Chip by counting quadrature encoded pulses(QEP).The quadrature encoded pulses consist of two sequences of pulses with variable frequencies and fixed phase shifts of a quarter of a period(90 degrees).The method used position and speed closed-loop to achieve preferable dynamic response and trail precision,at the same time gave software flow chart in scheme.In addition to,the article deduced calculational formula of antenna trailling angle.更多还原