近日，我校雷达成像与微波光子教育部重点实验室朱岱寅教授课题组在国际期刊《IEEE Aerospace and Electronic Systems Magazine》上刊登题为“Multirotors Video Synthetic Aperture Radar: System Development and SignalProcessing”论文，第一作者为博士生张营，论文获评为当期“Most Popular Documents--Rank#1”。该杂志每期出版4篇左右“Feature/Review”文章，其余为宇航与电子系统教育、工业与组织概况、协会技术委员会与协会分会活动、会议组织等。据2020年Web of Science统计，全年绝大多数文章来自NASA、JPL、CALTECH、ESA等欧美著名学术研究机构，共6篇文章来自中国。
图1 我校将军路校区主楼附近的飞行试验
杂志首次报道了一款微型多旋翼无人机载视频合成孔径雷达，涵盖了微型雷达系统架构、成像信号处理技术、硬件处理架构、地面动目标与试验场动态检测等若干方面，获得了公开报道的分辨率最高、成像幅宽最大的微型多旋翼无人机SAR多模式图像与动态视频影像。系统层面采用最高1.8GHz带宽的线性调频连续波发射信号，并具备轻量化、低功耗、高灵活度等无可替代的优势从而灵活搭载于多旋翼无人机。成像信号处理层面提出了包含频域成像算法、运动补偿、两维自聚焦以及高速硬件处理单元的完整成像架构，解决了极端气流扰动、非线性航迹、辅助运动传感器精度受限、近场高分辨率、海量回波并行高效成像的难题。视觉动目标检测层面分别提出了单通道单航迹模式散射关键帧提取器与低秩稀疏三项分解检测器，极大提高了在复杂场景中的动目标检测概率，打破了应急响应场景中不允许采集多通道或多航迹数据的局限性。课题组研制的多旋翼系统及其信号处理技术能被广泛应用于米级至亚米级分辨率的遥感探测、定位测量、目标识别与解译等领域，同时在应对自然灾害突发、紧急救援、实时战场侦察等方面价值突出。
此外，课题组博士生张营已将微型多旋翼无人机录取的部分视频合成孔径雷达数据的针对性算法设计与充分论证发表于国际刊物：IEEE Transactions on Vehicular Technology (//ieeexplore.ieee.org/document/9024146)和IEEE Transactions on Instrumentation and Measurement (//ieeexplore.ieee.org/document/8901149)。
图2 360度全方位动态场景观测
图3 非相干处理与散射特性融合观测
个人链接：//graduate.dianzigame.com/gmis5/dsfc/dsfcgrxx_New/70203803
IEEE MAES杂志原文链接：//ieeexplore.ieee.org/document/9285353
DOI: 10.1109/MAES.2020.3000318
附：What is the Systems Magazine ? [节选自IEEE MAES杂志官网]
The IEEE Aerospace and Electronic Systems Magazine is a monthly magazine that publishes articles concerned with the various aspects of systems for space, air, ocean, or ground environments. AESS Systems Magazine is a Systems Technology based publication which provides the readership with an overview of both new and evolving technology areas. Our goal is to inform the readers of technologies, state of the art, design trades, etc. so that they will gain insights into a field heretofore unknown to them. Its purpose is to act as a catalyst to the IEEE AES Society Membership, to engage the readers and enhance their creativity by publishing captivating, interesting, well written articles and tutorials from aerospace and electronic systems fields.
