| 摘要: |
| 在圆锥扫描实现过程分析的基础上，提出了一种改进的机载卫通天线跟踪算法。结合天线方位、俯仰方向图及其三维重构法，对该跟踪算法进行了理论推导。运用Matlab曲线拟合仿真，给出了天线跟踪调整方向和角度的计算公式，最后分析了实际应用中需要注意的一些问题。飞行试验表明，该改进的圆锥扫描跟踪技术提高了天线伺服系统的跟踪精度和跟踪速度，很好地满足了机载卫星通信的需求。 |
| 关键词: 机载卫星通信 天线伺服系统 圆锥扫描 跟踪算法 方位图 曲线拟合 |
| DOI：10.3969/j.issn.1001-893x.2017.11.005 |
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| 基金项目: |
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| An improved tracking algorithm for airborne SATCOM antenna |
| LIU Jingfeng,ZHAO Chunbiao,YANG Fanyu,ZHANG Yi |
| () |
| Abstract: |
| According to the analysis of the moving process of conical scan, this paper proposes an improved tracking algorithm for airborne satellite communication(SATCOM) antenna, and theoretically deduces it by combining with the antenna radiation patterns and its 3D reconstruction method. Through curve fitting and Matlab simulation, it presents a formula to calculate the adjustment direction and angle. Finally, it analyzes some problems to be focused in practice. Flight test demonstrates that the tracking algorithm improves the tracking accuracy and tracking speed of antenna servo system, and well meets the requirement of airborne satellite communication. |
| Key words: airborne satellite communication antenna servo system conical scan tracking algorithm radiation pattern curve fitting |
《电讯技术》编辑部 