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本文提出用x~2检验的方法来检测被动定位目标的机动,采用预滤波减少偏度误差,在卡尔曼滤波中用简单的运动和观察模型.对只要求测距的情况,第二级只需单对距离作滤波.对有测目标航向航速要求的情况;第二级需对R_x,R_y,V_x,V_y滤波,为了使本工作更易付于实际应用和硬件实现的简单化,滤波不需要记忆,也不作任何重复去调整和寻找最佳点,x~2检验作少量记忆.模拟实验和海上实验数据的处理示出其良好的工作性能,给出了满意的目标距离、航速航向的估
In this paper, the method of x ~ 2 test is used to detect the maneuver of passive positioning target, the pre-filter is used to reduce the skew error, and the simple motion and observation model is used in Kalman filter. The distance to be filtered is required. For the measured target course speed requirements, the second stage needs to filter R_x, R_y, V_x and V_y. In order to make the work easier to be practical and simplified, the filtering is not needed Memory, do not make any repetition to adjust and find the best point, x ~ 2 test for a small amount of memory. Simulation experiments and experimental data at sea treatment showed its good performance, given the desired target distance, speed and direction of the assessment