APPLICATION OF MULTIPLE BASELINE INSAR DATA FOR DEM GENERATION

摘要

In this paper the author attempts to improve the quality of DEM generated by InSAR by using multiple InSAR data pairs with different baseline lengths. The multiple interferometric data pairs by JERS-1/SAR repeat-pass observation with different baseline lengths are used to generate DEM in several mountain test areas in Japan. After DEM generation by individual data pairs, they are merged into a final DEM product based on the regression analysis of them. The result indicates that the use of multiple baseline data pairs significantly improves DEM quality with a little increase of height error.