Two-look method for correction of roll errors in aircraft-borne interferometric SAR

摘要

A technique is described for compensating for aircraft roll in dual antenna interferometric SAR from an airborne platform. The technique does not rely on prior knowledge of the target scene, or input from an inertial navigation unit (INU). The technique is tested on real data from the DRA's C-band interferometric SAR, which is fitted to an Andover aircraft, and the results are compared with output from a Litton-93 medium accuracy INU.