基于UKF的天基红外低轨卫星自由段弹道跟踪技术

Trajectory Tracking in Coast-Phase Using UKF for SBIRS-Low

分析了天基红外低轨卫星星载传感器对弹道导弹自由段的弹道估计问题,它是下一代空间预警系统的关键技术之一。同时引入一种新的滤波估计算法UKF,该算法应用于非线性系统时具有较好的滤波估计性能。通过Monte Carlo仿真,与其他算法比较,该算法具有更好的适应能力,跟踪性能更优。

Trajectory estimation in coast-phase using the measurement of arrival angles from space-based infrared sensors at SBIRS-low is one of the key technologies in space early warring system of next era.A U-Kalman filter and estimator for trajectory estimation in free-phase is presented.Compared with the other methods,the Monte Carlo simulation result shows that this technique has the better performance.