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基于TMS320F28335的高精度天线控制系统
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基于TMS320F28335的高精度天线控制系统
内容简介:针对目前飞行器大多安装多个天线用于与卫星的通信,如何选择一个高效的通信天线这一难题,提出了一种基于浮点运算DSP-TMS320 F28335的天线控制系统。系统天线切换算法以飞行器对星角度作为天线控制依据。该方法能高精确、实时、可靠、稳定地处理导航信息,进行天线控制。试验表明:算法实现仅需约50 ms;通过DSP测算结果与 STK软件仿真结果的比较,对星角度误差在0.05°以内。
Abstract:How to select a high efective antenna among antennas on aircraft for satellite communication is a dif-ficult question.To solve the problem,an antenna control system based on floating-point arithmetic DSP-TMS320F28335 was proposed.The switching algorithm toke the relative angle between aircraft and satellite as control basis,which could deal with the navigation information and control the antenna precisely,reliably and stably by real-time.The experimental results showed that the implementation of the algorithm toke 50s a bit more.By contrasting the DSP estimation results with STK software simulation results,the errors of the angle from the aircraft to the star was less than 0.05 degrees.
作者:许富景, 祖静, 丁永红, 尤文斌,
关键词:天线控制, TMS3 2 0 F2 8 3 3 5, 坐标转换, STK,
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