雷达非均匀扫描成像距离补偿优化方法  

Range Compensation Optimization Method for Radar Non-uniform Scanning Imaging

作　　者：蔡志明 袁煜盛 倪沁玮 周宇杰 林成焱 邬亮 CAI Zhiming;YUAN Yusheng;NI Qinwei;ZHOU Yujie;LIN Chengyan;WU Liang(School of Electronic,Electrical Engineering and Physics,Fujian University of Technology,Fuzhou 350118,China;National Demonstration Center for Experimental Electronic Information and Electrical Technology Education,Fujian University of Technology,Fuzhou 350118,China)

机构地区：[1]福建理工大学电子电气与物理学院,福建福州350118 [2]福建理工大学电子信息与电气技术国家级实验教学示范中心,福建福州350118

出　　处：《无线电工程》2025年第3期588-595,共8页Radio Engineering

基　　金：福建理工大学科研启动基金(GY-Z21064)。

摘　　要：探索毫米波雷达在非均匀扫描成像应用中的优化方法,特别是通过在传统成像算法上引入距离补偿来提高成像质量,以解决徒手扫描、无人机探测成像等曲线成像情景问题;分析非均匀扫描下的数据分布特点,通过数学模型对扫描数据计算收发天线阵列与其对应的虚拟阵列到参考点的距离差,以实现对非均匀扫描数据的有效校正。为验证所提方法,使用快速后向投影算法(Fast Back-Projection Algorithm,FBPA)和结合非均匀快速傅里叶变换的距离徙动算法(Non-Uniform Fast Fourier Transform-based Range Migration Algorithm,NUFFT-RMA)进行仿真和实验。研究结果表明,提出的距离补偿方法可以有效降低成像时受到的伪影影响并提高成像精度,为毫米波雷达非均匀扫描成像提供了一种有效的优化途径。The optimization of millimeter wave radar for non-uniform scanning imaging applications is explored,particularly through the introduction of distance compensation to traditional imaging algorithms.This approach aims to address challenges in curvature imaging scenarios such as freehand scanning and drone detection imaging.The analysis begins with an examination of data distribution characteristics under non-uniform scanning.Mathematical models are used to calculate the distance between the transceiver array and its corresponding virtual array to a reference point,enabling effective correction of non-uniform scanning data.To validate the proposed method,simulations and experiments are conducted using the Fast Back-Projection Algorithm(FBPA)and the Non-Uniform Fast Fourier Transform-based Range Migration Algorithm(NUFFT-RMA).The research results show that the proposed range compensation method reduces imaging artifacts and enhances accuracy.This method offers an effective optimization for non-uniform scanning imaging with millimeter-wave radar.

关 键 词：非均匀扫描 距离补偿 雷达成像 数据校正 

分 类 号：TN958[电子电信—信号与信息处理]