文中提出了一种适用于编队雷达系统的双多基地协同定位与跟踪算法。该方法通过双基地斜平面下角度旋转与坐标转换解算目标位置量测,采用主站统一极坐标系下对目标独立解耦卡尔曼滤波以及基于联邦结构的标量加权信息融合的方式,实现双多基地融合跟踪。仿真结果表明:在不同雷达测量精度条件下,所提方法与单雷达探测相比,跟踪航迹测距及测向性能均有明显改善,具有良好的通用性和实用性。在目标运动模型参数变化条件下,与直角坐标系下跟踪算法相比,所提方法具有更好的稳定性和鲁棒性。

A bi/multi-static corporative positioning and tracking algorithm for formation radar system is presented. The target position estimation is resolved by angle rotation and coordinate translation under bi-static inclined plane. Then independent decoupling Kalman filter and federated information fusion according to the scalar weighted rule are utilized under uniform main station polar coordination system, in order to fulfill bi/multi-static fusion tracking. Simulation results indicate that in condition of different radar measuring precisions, the ranging and direction-finding performance of tracking flight can be obviously improved, compared with single radar detection, and the favorable universal property and practicability of the proposed method is demonstrated. Under target state model parameter changing, the proposed method is demonstrated to be more stable and robust, compared with tracking algorithm under rectangular coordinate.

TN957.51