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引用次数: 0
摘要
雷达成像的用途[1]、[2]、[3]、[4]、[5]、[6]、[7]、[8]、[9] 广泛,包括科学遥感、医疗诊断工具、高分辨率安全检查、汽车传感、气象雷达和众多国防应用。例如,合成孔径雷达(SAR)允许在全天候环境中进行长距离成像情报、监视和侦察(ISR),并能为考古学和冰川学提供地面穿透成像。通过短时傅立叶变换(STFT)成像技术获得的微多普勒特征有助于评估飞机上旋转的旋翼等周期性特征,并提供了一种使机器可读取手语的机制。从偏振天气雷达获得的成像可以根据地理位置区分降水类型。汽车雷达研究同样也在探索帮助避免碰撞的成像功能。最后,反向合成孔径雷达(ISAR)利用被照物体的运动来构建图像,以进行识别和分辨。由于反响强烈,最近推出的《电气和电子工程师学会雷达系统论文集》(IEEE Transactions on Radar Systems)的第三个特别栏目精选了八篇论文,探讨雷达研究领域成像的不同方面。
Foreword to the Special section on Advances in Radar Imaging
The utility of radar imaging
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spans a variety of different use-cases including scientific remote sensing, medical diagnostic tools, high-resolution security screening, automotive sensing, weather radar, and numerous defense applications. For example, synthetic aperture radar (SAR) permits long-range imaging intelligence, surveillance, and reconnaissance (ISR) in all-weather environments and enables ground-penetrating imaging for archeology and glaciology. Micro-Doppler features derived by short-time Fourier transform (STFT) imaging facilitate the assessment of cyclic features such as spinning rotors on aircraft and providing a mechanism whereby sign language can be made machine-readable. Imaging derived from polarimetric weather radars can discriminate the type of precipitation as a function of geographic location. Automotive radar research likewise explores the imaging capabilities to aid in collision avoidance. Finally, inverse SAR (ISAR) leverages the motion of an illuminated object to construct imagery for identification and discrimination. Following another strong response, this third special section of the recently launched IEEE Transactions on Radar Systems comprises eight selected papers that explore different aspects of imaging across the radar research community.