| 一种车载卫星通信跟踪技术 |
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| 引用本文： | 赵来定.一种车载卫星通信跟踪技术[J].南京邮电大学学报(自然科学版),2014,34(5):80-86. |
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| 作者姓名： | 赵来定 |
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| 作者单位： | 南京邮电大学通信与信息工程学院,江苏南京,210003 |
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| 摘 要： | 文中提出了一种基于两轴座架结构的低成本车载卫星通信天线跟踪技术.首先介绍了该座架结构形式,分析了其特点,介绍了横摇轴对系统性能的影响,推导出了其空间对星三轴计算补偿公式,在此基础上进一步对跟踪误差进行了仿真分析,说明了补偿的必要性.还对系统一些关键技术如传感器卡尔曼滤波、圆锥扫描跟踪进行了介绍.工程实际应用表明,该项跟踪技术跟踪卫星信标信号稳定,达到了系统设计要求.
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| 关 键 词： | 车载卫星通信 两轴座架结构 横摇轴 对星补偿 卡尔曼滤波 圆锥扫描跟踪 |
Tracking Technology for Vehicle-mounted Satellite Communication |
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| ZHAO Lai-ding.Tracking Technology for Vehicle-mounted Satellite Communication[J].Journal of Nanjing University of Posts and Telecommunications,2014,34(5):80-86. |
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| Authors: | ZHAO Lai-ding |
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| Institution: | ZHAO Lai-ding ( College of Telecommunications ＆ Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China) |
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| Abstract: | A kind of antenna tracking technology for low-cost vehicle-mounted satellite communication is proposed based on two-axes mounted structure. The form of the structure is introduced, its features are an- alyzed, the influence of the roll axis on the system performance is described, and the compensation formula for star-axis calculating is derived. Simulation and analysis results on tracking error illustrate the necessity of the compensation. Also some key technologies, such as Kalman filter of sensor and conical scan tracking are discussed. The practical application shows that it is stable to track the beacon signal by the satellite tracking technology, thus meeting the requirements of the system design. |
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| Keywords: | vehicle-mounted satellite communication two-axes mounted structure roll axis compensation for star kalman filter conical scan tracking |
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