Moving ship refocusing is challenging because the target motion parameters are unknown.
Moreover, moving ships in squint synthetic aperture radar (SAR) images obtained by the …

As an active microwave remote sensing device, synthetic aperture radar (SAR) has been
widely used in the field of marine surveillance. However, moving ships appear defocused in …

Rotating ships usually suffer from complicated defocusing in high-resolution spaceborne
synthetic aperture radar (SAR) imagery due to the nonuniform motions, which severely …

Synthetic aperture radar (SAR) is an essential tool for maritime surveillance in all weather
conditions and at night. Ships are often affected by sea breezes and waves, generating a …

Synthetic aperture radar (SAR) is capable of monitoring the ocean all day, regardless of
weather conditions. However, moving ships exhibit azimuth defocus in SAR images, which …

Nonuniformly-rotating ship refocusing is very significant in the marine surveillance of
satellite synthetic aperture radar (SAR). The majority of ship imaging algorithms is based on …

Moving ship targets are always defocused in synthetic aperture radar (SAR) images under
the influence of self-motion and sea waves. Inverse SAR (ISAR) technique is commonly …

Synthetic aperture radar (SAR) is important for marine surveillance. The image resolution of
SAR is obtained via coherent integration. However, with increasing coherent processing …

Moving ship targets appear blurred and defocused in synthetic aperture radar (SAR) images
due to the translation motion during the coherent processing. Motion compensation is …

Due to self-motion and sea waves, moving ships are typically defocused in synthetic
aperture radar (SAR) images. To focus non-cooperative targets, the inverse SAR (ISAR) …