| 摘要: |
| 天线跟踪功能是车载动中通系统(SOTM)提供无线通信能力的前提，相控阵天线能提供较好的跟踪性能，但是存在波束扫描范围有限的问题。为实现相控阵天线全方位跟踪能力，提出了一种相控阵+伺服辅助的方法。给出了算法数据处理流程，并完成了原理样机设计。根据原理样机工作原理给出了跟踪角误差计算公式，测试结果与计算结果相符。测试结果表明：在(57.88～115.76)°/s角速度下，通信链路信噪比损失小于0.5 dB。 |
| 关键词: 车载动中通 天线跟踪 相控阵天线 伺服系统 跟踪角误差公式 |
| DOI： |
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| 基金项目: |
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| An antenna tracking method using phased array and servo for vehicle satellite communication on the move |
| JIANG Wenfeng |
| () |
| Abstract: |
| The antenna tracking function is the foundation for the vehicle satellite communication on the move(SOTM) to offer wireless communications,and the phased array antenna can provide better tracking performance,but the beam scanning range is limited.In order to realize the phased array antenna tracking in the entire orientation,a method using phased array antenna and servo is presented.The data processing flow of algorithm is provided,and the prototype has been developed.According to the prototype working principle，the formula to calculate the tracking angle error is given.The test result matches with the calculating result,and the signal-to-noise ratio(SNR) loss is smaller than 0.5 dB at the angle speed between(57.88～115.76)°/s. |
| Key words: vehicle satellite communication on the move(SOTM) antenna tracking phased array antenna servo system tracking angle error formula |
