针对多功能相控阵雷达成像任务的调度问题,提出了一种基于脉冲交错的成像雷达资源调度算法。该方法首先根据目标特征认知结果计算稀疏孔径ISAR成像所需的雷达资源,在此基础上,建立合理的脉冲交错驻留的资源调度模型,在时间与能量资源双重约束下对雷达资源进行合理分配,优化脉冲交错实现方法,并提出了平均交错度(AID)作为衡量雷达成像任务资源调度的性能指标,最后采用基于压缩感知的稀疏孔径ISAR成像方法对不同目标分别成像,在满足目标期望成像分辨率的前提下,显著提高雷达资源利用率。仿真实验验证了该算法的可行性。
Aimed at the problem of imaging task scheduling of multifunction phased array radar, this paper puts forward an adaptive scheduling algorithm for ISAR imaging radar based on pulse interleaving. First- ly, the paper calculates the required resources for sparse aperture ISAR imaging according to initial cogni- tion of target feature. On the basis of that, a rational and optimized scheduling model of interleaved pulse- dwelling is established, and then radar resources can be allocated reasonably under condition of the dual re- straints by time and energy. Average interleaving degree is proposed as an indicator of measuring imaging radar resources scheduling. At last, different targets are imaged respectively by using compressed sensing- based sparse aperture ISAR imaging method, and the required imaging resolution is achieved while the re- source utilization rate is enhanced apparently. The simulation result shows that this algorithm is feasible.