Scaled Model for Sand-covered Bedrock Mapping Interferometric Sar

Interferometric Synthetic Aperture Radars (InSAR) have been used to measure several geophysical quantities such as topography, glacier flows and deformations [1]. To estimate the surface topography, the phase difference between two or more complex SAR images acquired using two slightly different flight paths or two physically separated antennas is used. Then through geometrical equations relating the measured phase difference to the surface height, the land topography can be estimated. Modeling of InSAR systems is very important in order to optimize the design parameters or test new processing algorithms. Efficient computational methods for conventional InSAR modeling have been proposed in the literature [2] as well as scaled models which were also used to test a new coherence optimization method [3].