In the existing time-domain autofocus algorithms, the azimuth deramping operation will
change the azimuth-independent phase into the azimuth-dependent phase, which may …

For high-resolution spotlight synthetic aperture radar, Doppler aliasing is always introduced
in the long synthetic aperture observation time. The existence of signal Doppler aliasing will …

For ultrahigh resolution synthetic aperture radar (SAR), azimuth spectrum aliasing limits the
application of frequency-domain autofocus algorithms. Therefore, time-domain autofocus …

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 …

Squint ultrahigh-resolution (UHR) synthetic aperture radar (SAR) generally uses the
extended Omega-K algorithm (EOK) for range cell migration correction (RCMC). However …

Generally, high-resolution imaging for highly squinted synthetic aperture radar (SAR) data is
a difficult problem due to large range migration. Thus, when trying to solve this nontrivial …

Since the trajectory deviations of a radar platform cause serious phase errors that degrade
the focusing quality of synthetic aperture radar (SAR) imagery, an autofocus method is very …

Long synthetic aperture time and large instantaneous beam can turn airborne synthetic
aperture radar (SAR) autofocus into a wide-beam autofocus problem; ie, the motion error is …

For highly squinted synthetic aperture radar (SAR) imaging, the Omega-k algorithm is
generally accepted as an effective focusing processor. However, the performance of the …

The study focuses on addressing the image defocusing issue caused by motion errors in
highly squinted Synthetic Aperture Radar (SAR). The traditional auto-focusing algorithm …