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首页> 外文期刊>American journal of applied sciences >Very High Resolution Optical Satellites: An Overview of the Most Commonly used | Science Publications
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Very High Resolution Optical Satellites: An Overview of the Most Commonly used | Science Publications

机译：超高分辨率光学卫星：最常用的概述科学出版物

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> >Very High Resolution (VHR) satellite systems are platforms whose sensors acquire high geometric resolution images. Since 1972, when the first satellite was launched (Land sat ERTS), the spatial resolution of the satellite image has increased, making Ground Sample Distance (GSD) reaching 0.30 m at Nadir in panchromatic images. In this paper, after a brief introduction, concepts relative to orbits, types of sensors and resolutions are reported. Geostationary and sun-synchronous orbits are described; difference between push-broom and whisk-broom sensors are reported; the definition of the geometric, the radiometric and the temporal resolutions are listed. In the end, the characteristics of the most common VHR commercial optical satellite are mentioned: IKONOS-2, QuickBird-2, SPOT-5, GeoEye-1, WorldView-2 and WorlView-3 satellites.
机译： > >超高分辨率（VHR）卫星系统是其传感器可获取高几何分辨率图像的平台。自1972年发射第一颗卫星（Land sat ERTS）以来，卫星图像的空间分辨率有所提高，使全色图像中最低点的地面采样距离（GSD）达到0.30 m。在简要介绍之后，本文将介绍与轨道，传感器类型和分辨率有关的概念。描述了对地静止轨道和太阳同步轨道;报告了扫帚和扫帚传感器之间的差异;列出了几何，辐射度和时间分辨率的定义。最后，提到了最常见的VHR商业光学卫星的特性：IKONOS-2，QuickBird-2，SPOT-5，GeoEye-1，WorldView-2和WorlView-3卫星。

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