一种快速抗间歇采样转发干扰波形和滤波器联合设计算法  

Fast Algorithm for Joint Waveform and Filter Design against Interrupted Sampling Repeater Jamming

作　　者：周凯[1] 何峰[1] 粟毅[1] ZHOU Kai;HE Feng;SU Yi(College of Electronic Science,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学电子科学学院,长沙410073

出　　处：《雷达学报（中英文）》2022年第2期264-277,共14页Journal of Radars

基　　金：国家自然科学基金(61771478,61901501,62001488)。

摘　　要：该文研究了一种快速的抗间歇采样转发干扰波形和滤波器联合设计方法。基于罚函数和帕累托最优化原理给出了联合设计模型的优化数学模型。推导优化波形和滤波器过程中矩阵迹的解析表达式,有效降低了算法的计算复杂度。提出了一种基于平方迭代加速方法,解决了主分量最小化方法目标函数近似造成的算法收敛速度降低问题,进一步加快了算法运行速度。仿真结果表明,该文所提出的算法比传统方法具有更快的运行速度。同时,当干扰目标和真实目标在距离上不可分时,该文方法仍能够有效抑制间歇采样转发干扰。To suppress interrupted sampling jamming,a joint waveform and filter design method was proposed in this study.A fast algorithm was also suggested to design sequences with large code lengths.The joint design problem was formulated on the basis of the penalty function and Pareto optimization method.By deriving the theoretical solution of the trace of matrices in each iteration,the computation order of the proposed algorithm was decreased significantly compared to that of the conventional algorithm.Moreover,an accelerated scheme based on the squared iterative method,which further improves the running speed of the algorithm,was proposed.Simulation results demonstrate that the proposed algorithm runs faster than traditional algorithms.Moreover,the designed waveform and filter can be applied to suppress interrupted sampling repeater jamming when the false targets are inseparable from the true targets in time-frequency domains.

关 键 词：波形设计 滤波器设计 间歇采样转发干扰 主分量最小化 平方迭代加速方法 

分 类 号：TN972[电子电信—信号与信息处理]