星载空间目标光电跟踪力矩扰动抑制回路的设计

Design of Restraint Loop of Moment Disturbance for Spaceborne Space Targets Electro-optical Tracking

卫星平台的力矩扰动是影响星载跟踪系统跟踪精度最主要和直接的原因，要设计高精度、高性能的跟踪系统，必须对力矩扰动进行有效地抑制。在说明引起星载跟踪系统视轴抖动原因的基础上，提出了稳定回路相关性能指标，设计了光电跟踪力矩扰动抑制回路，并进一步对回路进行了串联校正及加速度计补偿。利用Matlab进行频率特性仿真，结果表明：设计的回路满足预期指标，且具有良好的力矩扰动抑制作用。

The moment disturbance of satellite platform is the most primary and direct reason ot influencing tracking precision of spaceborne tracking system. It is necessary to restrain availably moment disturbance for designing high-precision and high-performance tracking system. Correlative performance indexes of stabilization loop are presented based on several reasons for inducing line of sight （LOS） shake of spaceborne tracking system. Moment disturbance restraint loop of electro-optical tracking is designed, and the loop is revised ulteriorly by series-wound correction and compensated by accelerometer. The results using Matlab to simulate the frequency property show that the loop designed can satisfy pre-designed indexes and have nicer function of restraining disturbance.