Interleaved bi-static interferometric synthetic aperture radar technique for determining height information for an imaged area

摘要

A method and apparatus is provided for determining the height information of an imaged area A, utilising two platforms 42',42'' configured to carry out an interferometric synthetic aperture radar (InSAR) technique. The two platforms 42',42'' are separated by a known distance H and are moving in substantially the same direction at a similar speed. Radar pulses are transmitted at regular intervals alternately by each platform 42',42'' and the transmitted pulses are received by both platforms 42',42''. The reflected pulse energy is processed at both platforms 42' ,42'' to generate height information of the imaged area A.