摘要
误差配准是多传感器数据融合的先期处理过程。介绍了载机雷达所用坐标系,在考虑载机机动的前提下,给出了预警机系统到地面融合中心的基于地心地固坐标系(ECEF)高精度坐标转换算法。分析了由于载机机动导致的转换偏差,给出了误差补偿模型,然后用卡尔曼滤波实时估计出预警机对地面融合中心的系统偏差,从而实现对预警机的误差配准。计算机仿真结果证明了算法的正确性和有效性。
Error registration is a prerequisite process in multi-sensor data fusion.Firstly,the coordinate system which the AEWS uses is put forward.Based on consideration of the movement of AEWS,an accurate coordinate transformation algorithm from AEWS to ground data fusion center is given in this paper.The transformation error caused by AEWS＇s movement is also analyzed.Then the Kalman filter method is used to estimate the registration error in real time.The computer simulation results show that the algorithm is valid and effective.
出处
《无线电工程》
2011年第1期22-24,共3页
Radio Engineering
基金
国家自然科学基金项目(60773209)
关键词
预警机
误差配准
卡尔曼滤波
坐标转换
AEWS
error registration
Kalman filter
coordinate transformation
