多信号模型下精确干扰波形设计方法研究  

Waveform design for precision jamming under multiple signal model

作　　者：周青松 师沙沙 张可迪 钱佳龙 徐一波 李志汇 ZHOU Qingsong;SHI Shasha;ZHANG Kedi;QIAN Jialong;XU Yibo;LI Zhihui(College of Electronic Engineering,National University of Defense Technology,Hefei 230037,China)

机构地区：[1]国防科技大学电子对抗学院,安徽合肥230037

出　　处：《信息对抗技术》2023年第6期71-84,共14页Information Countermeasures Technology

基　　金：安徽省自然科学基金资助项目(2108085QF257)。

摘　　要：精确干扰是电子战领域的新概念,核心思想是通过集群无人机将干扰功率高效、精确地投送至目标设备,且不影响友邻设备的正常工作。然而,当前的窄带波形设计方法无法精确控制目标区域内的最低合成功率,在实际中难以实施有效干扰;而现有的宽带波形设计方法的计算效率较低。为了解决上述问题,分别针对窄带和宽带信号模型提出2种精确干扰波形设计方法。在窄带波形设计方法中,以最小化友邻区域的最大合成功率为目标,并将目标区域的最小合成功率高于给定阈值作为约束条件,以半定规划方法求解波形协方差矩阵;在宽带波形设计方法中,首先将波形的四次目标函数降为二次,然后以交替最小化方法进行求解。仿真实验表明,提出的窄带波形设计方法较现有算法具有更好的干扰有效性,宽带波形设计方法具有更高的计算效率。Precision jamming is a new concept in the field of electronic warfare,of which the core idea is that to deliver jamming power to target devices through cluster drones efficiently and accurately,without affecting the normal operation of neighboring devices.However,current narrowband waveform design methods cannot accurately control the minimum synthesized power within the target area,making it difficult to implement effective interference in practice.However,the computational efficiency of existing broadband waveform design methods is relatively low.To solve the above issues,this article proposed two precise interference waveform design methods for narrowband and broadband signal models,respectively.In the narrowband waveform design method,the objective is to minimize the maximum synthetic power of the neighbor region,and the constraint condition is that the minimum synthetic power of the target region is higher than the given threshold.The waveform covariance matrix is solved by the semi-definite programming method.In the wideband waveform design method,the fourth order objective function of the waveform is first reduced to a second or-der,and then solved using the alternating minimization method.Simulation experiments show that the narrowband waveform design method proposed in this paper has better interfer-ence effectiveness than those existing algorithms,and the broadband waveform design meth-od has a higher computational efficiency.

关 键 词：精确干扰 空间功率合成 窄带模型 宽带模型 波形设计 

分 类 号：TP927[自动化与计算机技术]