METHOD FOR MEASURING ELEVATION USING GEOMETRIC CHARACTERISTIC OF INTERFEROMETRIC SYNTHETIC APERTURE RADAR

摘要

PURPOSE: A method for measuring an elevation using a geometric characteristic of an interferometric synthetic aperture radar is provided to measure accurately an elevation by performing a phase difference-elevation conversion process. CONSTITUTION: An SAR image process for generating two-dimensional images is performed by receiving predetermined signals from each antenna by pixel unit having sizes and phases. The SAR images are arranged in a range/Doppler region and an interferometric phase difference is detected by pixel unit. An elevation is obtained by performing a phase difference-elevation conversion process and using a predetermined mathematical expression. A filtering for processing the calculated elevation information is performed by processing of one pixel or a spatial filtering process using a multi look method for dividing one region into multiple pixels.