Synthetic Aperture Radar Interferometry
Synthetic Aperture Radar Interferometry
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DOI：
10.1007/978-3-642-11741-1_11
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Ye Xia
中科院分区：
文献类型：
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作者：
Ye Xia
近二十年来，INSAR（合成孔径雷达干涉测量）技术得到了迅速发展，并广泛应用于地形研究（数字高程模型生成）和变形研究（地表监测）。合成孔径雷达（SAR）是一种相干有源微波成像仪器，用于绘制地球表面在相应波长域内的散射特性。SAR图像中每个像素的强度（灰度值）代表了成像场景的物理地质性质和几何参数。20世纪70年代末，世界上第一个星载SAR系统（NASA卫星SEASAT）发射用于地球观测。该任务率先将SAR技术应用于地球表面测绘，获取有关地形、形态、湿度等物理和地质特性的信息，并寻找地下水。星载SAR系统在微波范围内工作，因此可在全天候和所有气象条件下工作。
In the past two decades INSAR technique (synthetic aperture radar interferometry) has been quickly developed and widely used for the study of topography (digital elevation model generation) and deformation (Earth surface monitoring). Synthetic aperture radar (SAR) is a coherent active microwave image instrument, which is used for mapping the scattering properties of the Earth’s surface in the respective wavelength domain. The intensity (grey value) of each pixel in an SAR image represents the physical and geological property and geometric parameters of the imaged scene. In the late 1970s the first space-borne SAR system in the world (NASA satellite SEASAT) was launched for Earth observation. This mission pioneered the application of the SAR technology to mapping the Earth’s surface, acquiring information about physical and geological properties such as topography, morphology, moisture, and finding underground water. The space-borne SAR systems operate in the microwave range and therefore work on all days and all meteorological conditions.