一种基于变参考电平的零点凹口双重可控方向图综合改进方法  

An Improved Method for Synthesizing Dual-Control Adaptive Pattern with Nulls and Gaps Based on Variable Reference Voltage

作　　者：刘海波[1,2] 韩宇新 武兴恺 陈广茂 LIU Haibo;HAN Yuxin;WU Xingkai;CHEN Guangmao(School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China;Electromagnetic Sensing Research Center of CEMEE State Key Laboratory,School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学信息与电子学院,北京100081 [2]北京理工大学信息与电子学院国家重点实验室电磁感知研究中心,北京100081

出　　处：《北京理工大学学报》2024年第4期421-427,共7页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(31727901)。

摘　　要：为了解决基于变参考电平的自适应波束形成方法无法同时控制方向图零点和凹口的问题,研究了基于最大信噪比准则的任意阵列方向图综合方法,重点对主瓣宽度固定条件下能够实现最低等副瓣电平的方向图综合方法进行了理论分析,并对前人提出的可变参考电平参量进行了重新定义,新定义的变参考电平能够在波束主瓣宽度固定的前提下,同时产生等副瓣电平、可控凹口宽度和深度和可控零点深度的抗干扰波束,并通过计算机仿真验证了算法的有效性.该方法对于提升相控阵雷达对抗杂波和干扰性能具有较高的应用价值.To solve the problem that the pattern synthesis method based on the adaptive beam forming with variable reference voltage cannot simultaneously control the nulls and gaps of the pattern,a pattern synthesis method based on the maximum signal-to-noise ratio(MSNR)for arbitrary arrays was proposed in this paper,focusing on the theoretical analysis of pattern synthesis methods to achieve the lowest side lobe level under a fixed main lobe width.Redefining the variable reference voltage parameters proposed by previous studies,the new variable reference voltage was designed to generate an anti-interference beam with controllable gaps and nulls,as well as equal side lobe levels under the condition of a fixed beam main lobe width.The effectiveness of the algorithm was verified by computer simulations.This method has provided with a significant practical value to improve the performance of phased array radar in resistance of clutters and interferences.

关 键 词：波束形成 共形阵 抗干扰 

分 类 号：TN958.92[电子电信—信号与信息处理]