高精度中继星自动跟踪系统设计
Design of Relay Satellite High-Precision Auto-Tracking System
周勇 1马超 1庞洁 1张岸琪 2苏峰1
作者信息
- 1. 中国空间技术研究院西安分院,西安 710100
- 2. 重庆邮电大学自动化学院,重庆 400065
- 折叠
摘要
为实现用户星天线对中继卫星的高速数据传输和高精度跟踪,设计了一种由TE21模跟踪天线,一体化Ka跟踪接收机和终端控制器组成的系统,采用Ka频段单通道单脉冲跟踪体制.该系统在非线性机电数字仿真模型基础上,建立了跟踪接收机模型.通过仿真计算,得到自动跟踪响应结果,比较仿真结果和试验结果,验证了所建模型.通过远场测试自动跟踪S曲线,验证跟踪的动态性能和稳态跟踪精度.试验结果表明,自动跟踪系统的功能及性能均满足任务要求.
Abstract
In order to achieve high-speed data transmission between the user satellite antennas and relay satellite,single channel monopulse tracking systems are used to realize high-precision tracking.The design of auto tracking system based on integration of Ka-band tracking receiver and Servo controller is described in this paper,where TE21 mode coupler is used on Ka-band antenna.Tracking receiver model is established on the nonlinear dynamics model.Auto-tracking pointing error is provided by the model.Comparing the simulation with experiment results,the math model is correct and reliable.The Auto-tracking system is test on far-field.Tracking receiver's S curve,dynamic performance and pointing error are applied to test.The experiment results demonstrate the auto-tracking system function and performance meets the requirements of task by precision pointing.
关键词
自动跟踪/Ka跟踪接收机/跟踪精度Key words
Auto-tracking/Ka Tracking receiver/Pointing error引用本文复制引用
出版年
2024
NETL
NSTL
万方数据