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非合作干扰对消技术中空间分辨率建模与分析

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在非合作干扰对消的背景之下,通过对不同阵列流形接收信号模型的建立,提出了空间分辨率的表征参数,用以衡量干扰信号与通信信号达波角度接近时,不同阵列流形对相近达波角度的分辨能力和对消能力,并分析了空间分辨率的影响因素,提出了新的非合作干扰对消阵列设计标准.推导了阵列转移因子和输出信干噪比作为空间分辨率的评价指标.从阵型、阵元个数和阵列半径三个方面,仿真分析了不同阵列流形的空间分辨率,并通过实验进行了验证.实验结果与理论和仿真分析结果吻合较好,验证了空间分辨率对干扰对消的实际影响.为后续阵列流形优化与辅助天线设计提供了基础.
Modeling and analysis of spatial resolution in noncooperative interference cancellation technique
Under the background of noncooperative interference cancellation,through the establishment of the received signal models of different array manifolds,the representation parameters of spatial resolution were proposed to measure the resolution and cancellation ability of different array manifolds to the close reach angles of interference signals and communication signals,and the influencing factors of spatial resolution were analyzed.The new evaluation criterion for array design of noncooperative interference cancellation was provided.The array transfer factor and output signal to interference plus noise ratio were derived as the evaluation criterions of array spatial resolution.From three aspects of array configuration,number of array element and array radius,the spatial resolution of different array manifolds were analyzed by simulation.And the results were verified by experiments.The experimental results are in good agreement with theoretical analysis and simulation,and the importance of spatial resolution on interference cancellation is proved.It provides the basis for subsequent array manifold optimization and auxiliary antenna design.

noncooperative interference cancellationspatial resolutionarray manifoldauxiliary antenna

李哲宇、李亚星、张嘉毫、罗康、何方敏、孟进

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海军工程大学电磁能技术全国重点实验室,湖北武汉 430033

非合作干扰对消 空间分辨率 阵列流形 辅助天线

国家重点研发计划首席科学家负责制试点资助项目国家杰出青年科学基金资助项目中国科协青年人才托举工程资助项目电磁能技术全国重点实验室基金资助项目电磁能技术全国重点实验室基金资助项目

2021393520250722021-JCJQ-QT-0096142217210501614221722051301

2024

10.11887/j.cn.202405006

国防科技大学学报
国防科学技术大学

国防科技大学学报

CSTPCD北大核心
影响因子：0.517
ISSN：1001-2486
年,卷(期)：2024.46(5)