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Phase distortion modelling due to motion in wave scattering mechanism applied to SAR images analysis

In SAR image processing, taking phase distortion in radar signals into account is equivalent to considering motion as information embedded in it. In the aim of doing this, a model based on Gaussian linear frequency modulation is introduced, adapted to quantification and estimation of phase distortion. This model is based on three parameters, the Doppler frequency modulation rate K, the analysis time T a and the Doppler frequency f d, and allows practically a local representation of any quasi-punctal target echo.