In this letter, we discuss the problem that linear range cell walk correction in the azimuth time
domain may cause space variation along the azimuth not only to the quadratic phase but …

High-squint imaging is an effective means to enhance the flexibility and coverage ability of
spaceborne synthetic aperture radar (SAR). Although existing imaging algorithms based on …

The results of the linear range cell migration (RCM) correction and inherent range-
dependent squint angle in the case of high-resolution highly squinted synthetic aperture …

The challenge in the imaging of high-squint-mode synthetic aperture radar (SAR) mounted
on maneuvering platforms is the azimuth dependence of both the range migration and the …

The motion compensation (MOCO) for the airborne SAR with ultrahigh resolution and wide
swath is required to consider the range-dependent (RD) phase error. The RD phase error …

The squinted imaging mode has been successfully applied to synthetic aperture radar (SAR)
mounted on moving platforms of high speed. The developed focusing algorithms for squint …

Accurate range modeling, cross-range-dependent range migration, and space-variant
Doppler parameter are main issues to be solved in processing high-squint synthetic …

With continuous improvement of the synthetic aperture radar (SAR) resolution, the 2-D
defocus effect in SAR image resulting from uncompensated motion error has made …

When the range migration caused by motion error exceeds the range cell resolution, the
performance of a conventional phase autofocus approach degrades. In this paper, a new …

For the squinted terrain observation by progressive scans (TOPS) imaging mode, three
problems need to be considered: azimuth spectrum aliasing, serious range-azimuth …