一种用于制导雷达的交互多模型跟踪滤波算法

An interacting multiple model tracking and filtering algorithm for guidance radars

跟踪滤波算法是影响防空导弹武器系统杀伤能力的核心因素之一。传统的直线模型算法不适合精确跟踪具备超机动能力的现代战机。提出一种新的用于制导雷达数据处理的跟踪滤波方法。新方法采用交互多模型的结构,并加入未知角速度的转弯模型,避免了目标机动引起的跟踪精度下降。与现有的算法相比新方法显著提高了滤波跟踪的距离精度和方位精度。

The tracking and filtering algorithm is a core factor that affects the lethality of air-defense missile weapon systems. The conventional linear models are not suitable for tracking modem fighters with super maneuvering capabilities accurately. Therefore, a new tracking and filtering algorithm in the data processing for guidance radars is proposed. The new algorithm employs the interacting multiple model （IMM） structure and the constant turn （CT） model of the unknown angular velocity to avoid the reduction of the tracking accuracy resulting from the target maneuvering. The new algorithm is superior to the existing algorithms in greatly improving the range and azimuth accuracy of the tracking and filtering.