基于星敏感器的船载雷达误差修正参数解算方法  

Calculation Method of Error-correction Parameters for Ship-borne Radar Based on Star Sensor

作　　者：钟德安[1,2] 张同双[1,2] 冯鸿奎[1] 茅永兴[1,2] 

机构地区：[1]中国卫星海上测控部,江苏江阴214431 [2]飞行器海上测量与控制联合实验室,江苏江阴214431

出　　处：《电讯技术》2014年第8期1077-1081,共5页Telecommunication Engineering

摘　　要：针对动态条件下船载雷达误差修正参数标定困难的问题,提出了基于星敏感器的船载雷达误差修正参数解算方法,该方法以安装于船载雷达天线的星敏感器测角数据为比对基准。总结了船载雷达标定方法的现状,介绍了基于星敏感器的船载雷达误差修正参数解算原理,推导了船载雷达误差计算公式和误差修正参数解算模型。通过计算雷达相对星敏感器的角度残差,采用最小二乘算法实现了误差修正参数的解算。最后,通过静态与动态试验对该方法进行了验证。试验结果表明,静态条件下,该方法与传统坞内标定结果相比一致性优于15″,动态条件下的一致性优于25″,说明该方法技术上是可行的。In order to overcome the calibration difficulty of error-correction parameters for ship-borne radar under dynamic condition, a new method based on star sensor is presented,in which angular measurement data obtained by means of star sensor is taken as comparison data. The present calibration methods for ship-borne radar are summarized,the principle of calculation method based on star sensor is introduced,and the error formula and the calculation model are derived. By calculating angle residual error of radar to star sensor and by using least square estimation method,the calculation of the error-correction parameters is re-alized. Finally, the method is verified by dock-static and wharf-dynamic experiments. The result shows in comparison with traditional calibration method, the consistency is within 15＆quot;under dock-static condition, and 25＆quot;under wharf-dynamic condition, which proves the feasibility of the method.

关 键 词：船载雷达 误差修正参数 星敏感器 解算方法 最小二乘算法 

分 类 号：TN95[电子电信—信号与信息处理] V556[电子电信—信息与通信工程]