A compensation implementation scheme of the advanced targeting process based on the fine tracking system is proposed in this paper.Based on the working process of the quantum positioning system(QPS)and its acquisition...A compensation implementation scheme of the advanced targeting process based on the fine tracking system is proposed in this paper.Based on the working process of the quantum positioning system(QPS)and its acquisition,tracking and pointing(ATP)system,the advanced targeting subsystem of the ATP system is designed.Based on six orbital parameters of the quantum satellite Mozi,the advanced targeting azimuth angle and pitch angle are transformed into the dynamic tracking center of the fine tracking system in the ATP system.The deviation of the advanced targeting process is analyzed.In the Simulink,the simulation experiment of the ATP system considering the deviation compensation of the advanced targeting is carried out,and the results are analyzed.展开更多
针对空间光通信捕获、跟踪、对准(acquisition,tracking,pointing,ATP)系统的精跟踪单元高度复杂、被控对象参数模型难以精确获得、存在慢变化随机干扰的特点,提出采用自校正PID(proportional,integral and derivative)控制来设计精跟...针对空间光通信捕获、跟踪、对准(acquisition,tracking,pointing,ATP)系统的精跟踪单元高度复杂、被控对象参数模型难以精确获得、存在慢变化随机干扰的特点,提出采用自校正PID(proportional,integral and derivative)控制来设计精跟踪的控制器,改善了系统动态性能,增强了系统对不确定因素的适应性。采用遗忘因子递推最小二乘法来进行参数辨识,能在线调整适应对象参数的变化,增强了系统的适应性和鲁棒性。通过仿真验证了算法的控制性能和参数辨识效果,算法的实时性也满足系统设计的要求。给出了ATP精跟踪系统的设计框图,进行了2.3 km的精跟踪实验。实验结果表明精跟踪系统采用自校正PID控制有较好的跟踪精度。展开更多
在空间光通信中,捕获、跟踪、对准(Acquistion,Tracking and Pointing-ATP)是实现空间光通信的关键技术,故而该技术日益成为研究的热点。在ATP技术中用来实现目标捕获、跟瞄的光电传感器件大致有三种,即PSD(Position Sensitive Devices)...在空间光通信中,捕获、跟踪、对准(Acquistion,Tracking and Pointing-ATP)是实现空间光通信的关键技术,故而该技术日益成为研究的热点。在ATP技术中用来实现目标捕获、跟瞄的光电传感器件大致有三种,即PSD(Position Sensitive Devices)、QD(Quadrant Detector)和CCD(Charge-CoupledDevice)。在这些传感器之中,最简单、最有效也最常用的便是QD。本文对QD在探测中的性能进行了具体的分析和研究。展开更多
基金supported by the National Natural Science Foundation of China(61973290).
文摘A compensation implementation scheme of the advanced targeting process based on the fine tracking system is proposed in this paper.Based on the working process of the quantum positioning system(QPS)and its acquisition,tracking and pointing(ATP)system,the advanced targeting subsystem of the ATP system is designed.Based on six orbital parameters of the quantum satellite Mozi,the advanced targeting azimuth angle and pitch angle are transformed into the dynamic tracking center of the fine tracking system in the ATP system.The deviation of the advanced targeting process is analyzed.In the Simulink,the simulation experiment of the ATP system considering the deviation compensation of the advanced targeting is carried out,and the results are analyzed.
文摘针对空间光通信捕获、跟踪、对准(acquisition,tracking,pointing,ATP)系统的精跟踪单元高度复杂、被控对象参数模型难以精确获得、存在慢变化随机干扰的特点,提出采用自校正PID(proportional,integral and derivative)控制来设计精跟踪的控制器,改善了系统动态性能,增强了系统对不确定因素的适应性。采用遗忘因子递推最小二乘法来进行参数辨识,能在线调整适应对象参数的变化,增强了系统的适应性和鲁棒性。通过仿真验证了算法的控制性能和参数辨识效果,算法的实时性也满足系统设计的要求。给出了ATP精跟踪系统的设计框图,进行了2.3 km的精跟踪实验。实验结果表明精跟踪系统采用自校正PID控制有较好的跟踪精度。
