Due to the acceleration in the moving of the platform, the SAR imaging of highly squinted
maneuvering platform becomes a problem to be solved urgently. The majority of currently
existing range models fail in taking the azimuth-variation into consideration, so the well-
focused images are not obtained. To solve these problems, a new azimuth-variation range
model under the non-linear trajectory caused by acceleration is constructed. Based on this
model, a wavenumber-domain imaging algorithm for high squint SAR is proposed, which …