船载外测设备方位误差超标问题分析  

Analysis of Non-Compliant Azimuth Errors of Ship-Borne Space Tracking Equipment

作　　者：李辉芬[1] 朱伟康[1] 陈红英[1] 冯小勇[1] 底丽萍 

机构地区：[1]中国卫星海上测控部,江苏江阴214431

出　　处：《飞行器测控学报》2013年第4期336-339,共4页Journal of Spacecraft TT&C Technology

摘　　要：针对航天测量船船载外测设备长期存在的方位误差超标现象,研究了测量船轴系误差修正方法和船载设备角度误差修正原理,发现测量船船载外测设备光机偏差修正模型与方位零值标定方法不匹配,存在重复修正光机偏差误差的现象,从而导致该项误差偏大时引起方位误差超标。提出了测量船方位零位以机械轴为基准标定时的光机偏差修正的改进模型,并利用测量船校飞数据和卫星发射测量数据进行了仿真测试。测试结果验证了改进模型的正确性,解决了测量船外测设备方位误差超标的难题。Axial error correction method and angular error correction theory for ship-borne space tracking equipment are studied to solve the long-lasting problem of non-compliant azimuth errors of the equipment. Disagreement is found between the optical-mechanical axis non-parallelism modification model and the zero azimuth value calibration method and it gives rise to repeated correction of optical-mechanical axis errors, thus resulting in non-compliant azimuth errors when those errors are large enough. Based on the above findings, an improved model is proposed for correction of optical-mechanical axis errors when the zero azimuth value of the tracking ship is set using the mechani- cal axis as the reference of calibration. Correctness of the model is verified using data measured in flight tests of space tracking ships and satellite launch missions. Experiment results validate the improved model and the problem of non-compliant azimuth errors of ship-borne space tracking equipment is successfully solved.

关 键 词：船载外测设备 方位误差分析 光机偏差 方位零位 

分 类 号：V557[航空宇航科学与技术—人机与环境工程]