Research on Computing the Most Threatening Areas and Resource Allocation Techniques of Rotating Phased Array Multi-function Radar
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摘要: 旋转相控阵雷达在方位和仰角上均能电子扫描，相对于传统机扫雷达在方位和仰角上能更加灵活地调配资源。为了优化探测效果，需要对探测区域进行方位分区并进行威胁度评估。该文基于旋转相控阵雷达最威胁路径的计算提出一种区域威胁等级评估的方法；通过把每点检测概率等价为代价函数，利用泛函变分将寻找最威胁路径转变为最短路径问题；利用快速行进法求解旅行最短问题满足的程函差分方程，然后利用梯度下降法回溯最威胁路径；最后以240批目标的威胁路径计算为例，给出相应的评估结果。实践结果验证了方法的有效性和正确性。Abstract: Rotating phased array multi-function radar have electronically scanning capability both in elevation and in azimuth. It can allocate time and energy both in azimuth and elevation more flexible than the mechanical scanning radar. In order to optimize the effects of search, it is needed to divide and assess the areas. Based on the calculation of the most threatening path of the rotating phased array radar, this paper presents a novel method of regional threat level assessment; The radar problem of most threatening trajectories computation may be declined to a shortest path problem solved by calculus of variations by taking the detection probability as the price function; The shortest path computation based on Eikonal equations are solved with the fast marching method. The most threatening path are computed by backtracking the minimal path based on steepest gradient descent method. Finally, the solution of rotating phased array multi-function radar resources management is proposed based on divided areas, and the validity of the technique is checked and rationality of constructed model is verified by providing instances with 240 typical targets.
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