基于频率分集阵列小埋体检测三维形貌成像方法  

Three-Dimensional Topographic Imaging Method for Small Buried Body Detection Based on Frequency Diversity A

作　　者：周鹏[1,2,3] 王丽莹 李鹏飞 布锦钶 吕子悦 高艺蜚 张文理 赵青 ZHOU Peng;WANG Liying;LI Pengfei;BU Jinke;LV Ziyue;GAO Yifei;ZHANG Wenli;ZHAO Qing(School of Electronics and Information,Zhengzhou University of Aeronautics,Zhengzhou 450046,China;Collaborative Innovation Center of Aeronautics and Astronautics Electronic Information Technology,Zhengzhou University of Aeronautics,Zhengzhou 450046,China;Henan Key Laboratory of General Aviation Technology,ZUA,Zhengzhou 450046,China)

机构地区：[1]郑州航空工业管理学院电子信息学院,河南郑州450046 [2]郑州航空工业管理学院航空航天电子信息技术河南省协同创新中心,河南郑州450046 [3]郑州航空工业管理学院河南省通用航空技术重点实验室,河南郑州450046

出　　处：《郑州航空工业管理学院学报》2024年第2期72-78,共7页Journal of Zhengzhou University of Aeronautics

基　　金：国家自然科学基金项目(62201510);河南省科技攻关项目(242102211013,242102211086);河南省本科高校新工科新形态教材项目(2023-124);教育部产学合作协同育人项目(230704838125746);郑州航空工业管理学院创新创业示范课程项目(2023-14);郑州航空工业管理学院课程思政项目(校教字【2024】4号);郑州航空工业管理学院实验室开放项目(ZHSK2319\ZHSK2356);国家级大学生创新创业训练计划项目(202310485025);郑州航空工业管理学院大学生创新创业训练计划项目(2023-70)。

摘　　要：频率分集阵列(Frequency Diverse Array,简称FDA)在埋体管线的探测识别与成像中具有很大优势,利用其灵活的波束控制和信号处理性能,能够摆脱传统阵列发射信号限制,灵活接收和处理复杂信号。通过发出窄带信号进而获得宽带信号探测参数,大大降低操作成本,实现高效率、高精度、高性价比三维立体成像。现如今埋体管线探测成为城市发展中不可避免的痛点,小埋藏体检测成像更是难点问题。文章提出一种基于多进多出技术(Multiple-Input Multiple-Output,简称MIMO)的频率分集阵列三维合成孔径雷达(3D-FDA-MAR)成像方法,并将MIMO阵列引入频率分集阵列实现三维成像,建立了MIMO-FDA三维形貌成像模型。该多进多出频率分集阵列在三维空间中能够随平台运动而运动,在沿航向处得到综合孔径,根据切航向阵列能够获得仿真频率分集阵列平面,从而得到目标物成像的三维立体效果,实现精准定位,全空间透视探测,智能3D成像,小埋藏体的精准检测诊断。Frequency Diverse Array(FDA)has great advantages in the detection,identification and imaging of buried pipelines.By using its flexible beam control and signal processing performance,it can get rid of the restrictions of traditional array transmitting signals and flexibly receive and process complex signals.By sending narrowband signals and obtaining broadband signal detection performance,it greatly reduces the operation cost and realizes high efficiency,high precision and cost-effective three-dimensional imaging.Nowadays,buried pipeline detection has become an inevitable pain point in social development,and the detection and imaging of small buried bodies is more difficult.An imaging method of frequency diversity array three-dimensional synthetic aperture radar(3D-FDA-MAR)based on multiple-input multiple-output(MIMO)technology is proposed.MIMO array is introduced into frequency diversity array to realize three-dimensional imaging,and the MIMO-FDA three-dimensional topographic imaging model is established.The multi-input multi-output frequency diversity array can move with the platform movement in three-dimensional space,and obtain the comprehensive aperture along the course.According to the tangential course array,the simulated frequency diversity array plane can be obtained,so as to obtain the three-dimensional imaging ability of the target.It can achieve accurate positioning,full-space perspective detection,intelligent 3D imaging,and accurate detection and diagnosis of small buried bodies.

关 键 词：频率分集阵列 三维成像 埋体管线 合成孔径雷达 多进多出 压缩感知成像算法 

分 类 号：TN959.73[电子电信—信号与信息处理]