Two-dimensionalphase gradient autofocus[A]. Proceedings of SPIE[C]. Wash-ington :SPIE Press,2000.162 - 173.Warner D W, Ghiglia D C, Fitzgerrel A, et al.. Two- dimensional phase gradient autofocus[C]. Proceedings of SPIE ]:mage Reconstruction from Incomplete Data, 2000, 4123:162 173....
For real-time autofocus of defocused images produced by Synthetic Aperture Radar(SAR), the twodimensional autofocus approach proposed in this study is used to correct the residual range cell migration and compensate for the phase error. Next, a block-wise Phase Gradient Autofocus(PGA) is used to...
gradient adaptive algorithm was adopted to reconstruct the echoes in range dimension.Then the method of minimizing the entropy of the average range profile was applied to estimate the parameters which are used to compensate translation components of the received echoes.Besides,the phase adjustment and ...
Azimuth migration-corrected phase gradient autofocus for bistatic SAR polar format imaging. IEEE Geosci. Remote Sens. Lett. 2020, 18, 697–701. [Google Scholar] [CrossRef] Mao, X.; Zhu, D.; Zhu, Z. Polar format algorithm wavefront curvature compensation under arbitrary radar flight path. ...