Today, remote sensing systems/technologies are one of the most essential requirements for civil and military sectors for various applications. This review article discusses the evolutionary developments of today’s remote sensing radar/optical/electronic warfare (EW) technologies, right from the telemobiloscope. This review article addresses the fundamentals of radar sensing techniques, top-level radar classifications, and revolutionary developments of antenna technologies for remote sensing applications. The various techniques available for radar waveform design, a characteristics analysis of it using ambiguity functions (AFs), pulse compression/stretch processing, a time-frequency (T-F) analysis, and so on are reviewed. The significant transformations that have happened in radar system engineering since vacuum tube microwave devices are reported. Contemporary societal applications of radar systems, tracking and guidance radar systems, advanced EW systems, photonics EW systems, and photonics signal processing are reviewed and reported. State-of-the-art optical technologies available for today’s remote sensing applications are discussed. In addition to these reviews, a comprehensive comparative study is performed in terms of available remote sensing systems/technologies, their typical operating frequency ranges, potential applications, types of waveforms, and so forth, and the quantitative results are reported.

中文翻译：

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当今遥感雷达技术的演进发展——来自望远镜：回顾

如今，遥感系统/技术是民用和军事部门各种应用的最基本要求之一。这篇评论文章直接从远程移动望远镜角度讨论了当今遥感雷达/光学/电子战 (EW) 技术的演变发展。这篇综述文章介绍了雷达传感技术的基础知识、顶级雷达分类以及遥感应用天线技术的革命性发展。回顾了可用于雷达波形设计的各种技术、使用模糊函数 (AF) 对其进行特性分析、脉冲压缩/拉伸处理、时频 (TF) 分析等。自从真空管微波器件被报道以来，雷达系统工程发生了重大转变。回顾和报告了雷达系统、跟踪和制导雷达系统、先进电子战系统、光子电子战系统和光子信号处理的当代社会应用。讨论了可用于当今遥感应用的最先进的光学技术。除了这些综述之外，还对可用的遥感系统/技术、其典型工作频率范围、潜在应用、波形类型等进行了全面的比较研究，并报告了定量结果。