Airborne MMW InSAR interferometry based on time varying baseline and BP algorithm

Airborne interferometric synthetic aperture radar (InSAR) may exhibit highly non-linear flight paths, which cause the baseline to vary along the flight paths. In the following, a new airborne InSAR processing method which allows the baseline to vary along the flight paths is presented. It does not come to keep the assumption of a linear acquisition path and one constant interferometric baseline, which is adopted in conventional techniques. In addition, the validity of the proposed method was testified by both simulation and an example of its application.