早期预警雷达和多功能相控阵雷达的目标指示交接方法

为解决远程预警相控阵雷达和多功能相控阵雷达在目标指示交接中存在着搜索空域划分不合理、波位编排不准确造成的耗时长、占用雷达资源多，甚至出现误交接等问题，提出一种新的相控阵雷达目标指示交接方法。根据目标弹道以及坐标变换非线性的特点，利用扩展卡尔曼滤波器对目标滤波定轨；由目标出现概率划分并更新搜索空域，根据目标概率密度，设计一种动态波位编排算法。通过目标指示交接实验和波位编排实验，验证了该方法比传统方法在交接误差控制上更能满足交接要求，动态波位编排算法得到的目标落入概率高于传统波位编排算法得到的目标落入概率。新的相控阵雷达目标指示交接方法能有效提高目标指示交接成功率，节省雷达资源。

The Target Designation and Handover Method of Early-warning Radar and Multifunction Phased Array Radar

A new method to cue and hand over a target is presented in order to solve the problems, such as unreasonable distribution of search area, long time consuming due to inaccurate beam position arrangement, overused radar resource and even wrong handover, which exist in target designation and handover of the early-warning radar and ground-based radar. Based on a nonlinear characteristics of target trajectory and the transformation of coordinates, the proposed method uses KEF to determine the orbits of target smoothing, and the search area is distributed and upgraded by the probability of target occurrence. This is a dynamic beam position arrangement designed based on the probability density of target occurrence. The target designation and handover and the beam position arrangement are experimented. The experimental reults show that the proposed method is better than the conventional method in error control, and the hit probability of beam position arrangement method based on probability density of target is bigger than that of conventional beam position arrangement method. The success probability of target designation and handover of the phased array radar is efficiently optimized, thus resulting in the saving of the radar resources.