摘要
由于星-地激光通信链路通信束散角小,对通信终端伺服精度要求较高,为了满足伺服系统的精度要求,需合理的分配和控制跟踪架的轴系误差,传统方式采用极值法进行误差分配,相比此方法,通过运用蒙特卡洛法,对间隙误差值的分布进行预估,明确敏感因素,使误差分配准确。针对激光通信地面站跟踪架,运用Adams insight对100组服从正态分布的轴系间隙进行随机抽样,根据跟踪架轴系位移跳动变化曲线和响应报告,得出俯仰方位轴间隙对目标位移跳动的权重,优化轴系间隙满足跟踪精度。经优化后得:方位轴系晃动为2.34″,俯仰轴系晃动为2.62″,满足调试要求,最终得到跟踪精度最大为9.6″。
Due to the small divergence angle of the communication beam of the satellite-ground laser communication link,the servo terminal has higher requirements on the servo.In order to meet the accuracy requirements of the servo system,it is necessary to properly allocate and control the shafting error of the tracking frame.The traditional method uses the extreme value method.Error distribution,compared to this method by using the Monte Carlo method,the distribution of the gap error value is estimated;the sensitive factors are clarified;and the error distribution is accurate.In this paper,the Adams insightis applied to the 100 groups for the laser communication ground station tracking frame.The forward-distributed shafting gap is randomly sampled.According to the tracking curve displacement curve and response report of the tracking frame,the weight of the pitch azimuth axis gap to the target displacement is obtained;and the optimized shaft clearance meets the tracking accuracy.After being optimized,the azimuth axis system oscillates 2.34″;and the pitch axis system oscillates 2.62″;meeting the debugging requirements,and finally the tracking accuracy is up to 9.6″.
作者
王天宇
张家齐
张立中
王桂冰
WANG Tian-yu;ZHANG Jia-qi;ZHANG Li-zhong;WANG Gui-bing(School of Mechatronic Engineering,Changchun University of Science and Technology,Changchun 130022;National and Local Joint Engineering Research Center of Space Optoelectronics Technology,Changchun University of Science and Technology,Changchun 130022;Fundammontal Science on Spare-Ground Laser Commmunication Technology Laboratory,Changchun University of Science and Technology,Changchun 130022)
出处
《长春理工大学学报（自然科学版）》
2021年第1期50-56,共7页
Journal of Changchun University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金(91338116)。
关键词
测量
激光通信
蒙特卡洛法
轴系精度
伺服调试
measuring
laser communication
Monte Carlo method
shaft accuracy
servo debugging
