SAR Imaging Algorithm in Dive Acceleration Motion Based on Keystone Transform
LIU Xiao
Abstract：SAR image formation algorithm under diving and accelerated is a hot research subject in SAR field .Due to the range equation with a more complex form ,it is difficult to solve an analytical two‐dimensional frequency spectrum using principle of stationary phase .Thus ,the traditional algorithms are invalid for imaging in dive and accelerated motion .This paper proposes an efficient image formation algorithm ,using keystone transform to correct the linear range cell migration . Finally ,the focused SAR image can be obtained via two‐dimensional fourier transform .
Keywords：synthetic aperture radarradar imagingrange cell migrationlinear range cell migration correctionKey-stone transform
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 50-53 )