| 摘要: |
| 针对飞行器与中继卫星之间建立全球实时通信数据链的需求，开展了飞行器二维有源相控阵天线自跟踪技术研究。结合载体坐标系，对自跟踪算法原理进行了分析，给出了计算公式，并完成了二维相控阵天线跟踪系统设计与实现。仿真和系统测试表明，跟踪算法静态角跟踪误差≤0.25°，角速度≤25°/s时，跟踪算法能正常工作，且在阵元失效率≤20%时性能保持不变。 |
| 关键词: 中继卫星终端 相控阵天线 自跟踪算法 |
| DOI：10.20079/j.issn.1001-893x.211115004 |
|
| 基金项目: |
|
| Design and performance analysis of phased array antennas automatic tracking algorithm used in relay satellite system terminal |
| JIANG Wenfeng,AN Jian,YE Qiwei |
| (Southwest China Institute of Electronic Technology,Chengdu 610036,China;Unit 61096 of PLA,Beijing 102308,China) |
| Abstract: |
| According to the demand of building the global communication link between the aerocraft and the relay satellite,the automatic tracking technology for two-dimensional phased array is researched.By using the vehicle coordinate,the principle of the automatic tracking algorithm is analyzed,the calculation formula is given,and the design and realization of the two-dimensional phased array tracking system is finished.Simulation and system testing data shows that,the static state angle tracking error of the automatic tracking system is ≤0.25°,and the automatic tracking system can keep working when the angular velocity is ≤25°/s and even 20% arrays are invalid. |
| Key words: relay satellite system terminal phased array antenna automatic tracking algorithm |
