An omega-K imaging algorithm for bistatic forward-looking SAR with stationary transmitter

Synthetic Aperture Radar (SAR) has been applied in civilian and military fields widely. However, because of the inherent characteristic of monostatic SAR, it can not image the forward-looking terrain of the aerocraft [1]. As an emerging SAR technology, bistatic SAR is receiving considerable attention at present. With the choice of proper geometry, it can image in flight direction. We call this case bistatic forward-looking SAR (BFSAR). This might result in some new applications of bistatic SAR in aviation by imaging obstacles (e.g. mountains) in flight direction which are covered by fog, rain and clouds. With such systems, we can also improve the safety of landing airplanes.