Abstract:

The azimuth resolution of conventional spaceborne synthetic aperture radar (SAR) system is in conflict with swath width because of the minimum antenna area constraint. The conflict can be solved by using distributed small satellites SAR system, thus achieving a wide swath and high resolution SAR image of the observed scene. This paper mainly studies the method restraining Doppler ambiguity induced by small antenna in the condition of error.

Key words: distributed , small , satellites,  , SAR,  , Doppler , ambiguity,  , array , signal , processing