星载光电复合轴跟踪控制技术研究

Opto-electrical compound axis tracking control technology on satellite

  • 摘要: 将两轴光电跟踪仪搭载于卫星平台对空间运动目标进行持续跟踪监视正在成为一个研究热点,目前这类系统有天基空间目标监视系统(SBSS)、空间跟踪与监视系统(STSS)和持续跟踪与监视系统(PTSS)。为了解决天基目标监视中星载动基座情况下的光轴稳定跟踪控制技术,首先简化了星载光电跟踪控制系统的物理模型,然后求解了太阳同步轨道附近两卫星的相对运动角速度和角加速度大小,接着分析了基于光电复合轴方式的主动稳定跟踪控制方案和原理,最后建立了单轴系的星载光电复合轴跟踪控制系统仿真模型,计算结果为:对相对机动范围内(37.68 ()/s、47.33 ()/s2)的空间目标和相对低匀速范围内(0.1 ()/s)的空间卫星的稳定跟踪精度为2.5。

     

    Abstract: It's becoming a research hot topic that two axis opto-electrical tracking instrument is loaded on satellite to continuously track and observe moving target in space. At present, there are Space-Based Space Surveillance System (SBSS), Space Tracking and Surveillance System (STSS) and Precision Tracking and Surveillance System (PTSS). In order to deal with stable tracking control technology for opto-electrical axis on the condition of dynamic platform on satellite, firstly, simplifying physics model of opto-electrical tracking control system on satellite. Secondly, solving relative angular velocity and acceleration between two satellites near sun-synchronous orbits. Thirdly, analyzing active stable tracking control scheme and principle based on opto-electrical compound axis tracking control system. Lastly, establishing simulation model of opto-electrical compound axis tracking control system on satellite. And the results show that stable tracking precision is 2.5 for space object in the relative maneuvering range of (37.68 ()/s、47.33 ()/s) and space satellite that relative low velocity is 0.1 ()/s.

     

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