Affiliation of Author(s):电子信息工程学院

Journal:Dig Int Geosci Remote Sens Symp (IGARSS)

Abstract:When processing high-resolution spaceborne synthetic aperture radar (SAR) data, the orbit curvature is a key aspect that must be taken into account. The non-hyperbolic range history makes most SAR imaging approaches not suitable for the curved orbit. Based on the two-dimensional spectrum derived by series reversion (SR), a modified Omega-K algorithm (OKA) is proposed in this paper. Making use of the reference function calculated by SR, an accurate bulk compression is implemented. Following, a modified Stolt interpolation is applied based on least square (LS), to perform the residual range-variant processing efficiently. The method described can achieve satisfactory focusing results for spaceborne SAR, without a large number of computation. Point targets simulations have validated the presented research. © 2018 IEEE.

Translation or Not:no

Date of Publication:2018-10-31

Co-author:Yang, Mingdong,F70206527

Correspondence Author:Daiyin Zhu