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首页> 外文会议>IEEE International Geoscience and Remote Sensing Symposium >A Refined Split-Spectrum algorithm for correcting ionospheric effects on interferograms of spaceborne D-InSAR at longer wavelength
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A Refined Split-Spectrum algorithm for correcting ionospheric effects on interferograms of spaceborne D-InSAR at longer wavelength

机译：修正电离层对更长波长的星载D-InSAR干涉图的电离层影响的精细分裂谱算法

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摘要

Ionospheric effect is considered to be one of the factors limiting the accuracy of deformation measurement acquired from interferometric SAR data. The correction of this error source was studied recently, and some new methods was developed and improved. One of these methods is the range Split-Spectrum. In this work, we introduce a new algorithm for implementing the method. An improvement is made, when one corregistration step is performed, and no resampling of the slave images is needed. The performance of the method is studied on a couple of ALOS data, the variation of the differential STEC on the interferogram, was determined as less than 0.5 TECU.
机译：电离层效应被认为是限制从干涉SAR数据获取的形变测量精度的因素之一。最近研究了该误差源的校正，并开发和改进了一些新方法。这些方法之一是范围分割频谱。在这项工作中，我们介绍了一种用于实现该方法的新算法。当执行一个对位步骤时，无需进行从属图像的重采样，就可以进行改进。在几个ALOS数据上研究了该方法的性能，确定干涉图上差分STEC的变化小于0.5 TECU。

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