基于均匀圆阵的近场源定位技术研究进展  

Progress in Near-field Source Localization via Uniform Circular Array

作　　者：刘振 陈鑫 苏晓龙 户盼鹤 刘天鹏 彭勃 刘永祥 LIU Zhen;CHEN Xin;SU Xiaolong;HU Panhe;LIU Tianpeng;PENG Bo;LIU Yongxiang(College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China;The Institute of Effectiveness Evaluation of Flying Vehicle,Beijing 100094,China)

机构地区：[1]国防科技大学电子科学学院,长沙410073 [2]航天飞行器生存技术与效能评估实验室,北京100094

出　　处：《电子与信息学报》2023年第2期734-745,共12页Journal of Electronics & Information Technology

基　　金：国家重点研发计划(2021YFB3100800);国家自然科学基金(62022091,61921001,61801488);湖湘青年科技创新人才项目(2021RC3079);国防科技大学科研计划项目(ZK21-14)。

摘　　要：近场源定位在雷达、声呐和通信中发挥着重要的作用。该文利用均匀圆阵的阵列结构优势,系统梳理了窄带近场源定位方法以及解模糊方法,并在此基础上从时域、频域、分数阶傅里叶域等方面阐述了近场线性调频(LFM)信号的方位角、俯仰角和距离等3维位置参数快速精确估计方法。最后,对相干辐射源和近远场混合源参数估计等后续研究内容进行了展望。Near-field source localization plays an important role in the radar, sonar and communications. The near-field source localization methods and the resolving ambiguity methods via uniform circular array are systematically introduced in this paper. On this basis, the fast and accurate algorithms for three-dimensional position parameter(azimuth angle, elevation angle and range) estimation of near-field Linear Frequency Modulated(LFM) signal are further introduced from time domain, frequency domain, and fractional Fourier domain. Finally, the following research ideas are proposed from the aspects of coherent source and mixed source localization.

关 键 词：均匀圆阵 近场源定位 解模糊 线性调频信号 

分 类 号：TN911.7[电子电信—通信与信息系统]