摘要
采用双通道串行合并式的Kalman滤波是双面阵雷达目标跟踪的一种常用方式,但引入低精度测量通道的点迹会降低目标跟踪精度.为解决通道误差不匹配导致的跟踪精度下降问题,首先从理论上推导了串行合并式的滤波误差,通过与单通道滤波误差的比较,指出通常情况下应该将2个通道的观测误差比限制在3以内才能保证双通道滤波误差优于单通道.最后利用仿真实验验证了理论分析的一致性.
One of the typical ways of target tracking of double-faced array radar is to employ Kalman filter with integration of serial channels,where,however,the plot introduced to measuring channel with low precision can reduce the target tracking precision.To overcome the problem of precision decrease resulted from channel error mismatching,this paper deduces the filter error of channels with serial integration theoretically,and then indicates that the observation error ratio of the two channels should be limited within 3,usually,to guarantee that the filter error of the double channels is superior to that of the single one,by comparing the filter error of them.Finally,simulation results show that the consistency lies between the experiment and theory.
出处
《空军雷达学院学报》
2011年第1期12-14,24,共4页
Journal of Air Force Radar Academy
基金
国家部委级资助项目
关键词
双面阵雷达
目标跟踪
滤波误差
two-faced array radar
target tracking
filter error
