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采用广义Ｋａｌｍａｎ滤波方法，通过在北天东雷达直角坐标系内建立相应的再入目标状态及雷达观测方程，再入目标的机动特性用一阶高斯马尔科夫过程描述，并增广到状态方程组之中，根据获得的带有测量误差的雷达测量信息对再入机动目标弹道进行估计，得到了满意的结果。
The generalized Kalman filter method is used to establish the corresponding reentry target state and radar observation equation in the North East rectangular radar coordinate system. The reentry target maneuver characteristics are described by the first-order Gaussian Markov process and extended to the state equation Among the groups, satisfactory results were obtained based on the obtained radar measurement information with measurement error for the re-entry maneuvering target trajectory.