文章基本信息

标题：Simulator of Interferogram for Spaceborne Sar System
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作者：K. Ren ; G. Wu ; Q.X. Shi 等
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2004
卷号：XXXV Part B1
页码：91-95
出版社：Copernicus Publications
摘要：In interferometric synthetic aperture radar (InSAR) processing, simulation of interferogram is a common practice. It is used as synthetic data to test and validate the whole chain of InSAR processing from the interferogram creation to the DEM reconstruction. The objective of this paper is to develop a simulator for validation of geocoding processing and phase-to-height conversion processing algorithm. The simulator includes two parts: digital elevation model (DEM) of terrian simulation and interferogram simulation with DEM and satellite orbit parameters. DEM is realized by the fractal Browian motion (fBm) model with the midpoint displacement method and the terrain roughness and average slope are determined by two describing parameters of the model. Simulators for interferometry are generally developed in a simplified imagery geometry model. Here the geolocation method is adopted and the geographic coordinates (latitude, longitude) of the synthetic DEM in the imagery region are assigned according to the real orbit. Simulation experiments on simulated and ERS-1/2 tandem real orbit data demonstrate the efficiency of the proposed simulator. The developed simulator can also be used to test the accuracy of basline estimation
关键词：SAR; Interferometer; DEM; Remote Sensing; Satellite; Geometry