Patent ID: 6208283
Filing Date: 2001-03-27
Classification: G01S

Abstract:
A synthetic aperture radar system fluctuation compensating apparatus comprising:a synthetic aperture radar mounted on a flying unit;a data acquiring unit for acquiring reception data by said synthetic aperture radar;a position measuring unit for measuring a position of said flying unit to generate position data; anda position determining unit for determining a correct position of said flying unit based on said reception data and said position data to generate compensated position data, said position determining unit including:a compression processing unit for performing a range compressing process on said position data to generate range compression data;an extracting unit for extracting a reflection signal from said range compression data;an error calculating unit for performing an unlapping process and a smoothing process on said reflection signal in phase to generate an unlapped signal, and then calculating said range error based on said unlapped signal; anda position calculating unit for calculating said compensated position data indicative of a position of said flying unit from said range error.