This paper presents a novel data preprocessing method for resolving Doppler ambiguity of
spaceborne spotlight synthetic aperture radar. The new method enhances the azimuth …

Sliding spotlight mode is a widely used working mode for spaceborne synthetic aperture
radar (SAR) systems. It can realize a higher azimuth resolution than the stripmap mode and …

With the increasing demands for higher resolution and wider swath in many applications of
Synthetic Aperture Radar (SAR), sliding spotlight mode has been presented. Here the …

In image processing of high-resolution sliding spotlight SAR, it is important to know the
Doppler rate with accuracy; however, traditional Doppler rate estimation algorithms are not …

Spotlight Synthetic Aperture Radar (SAR) is an imaging mode with high resolution and
widely used in spaceborne and airborne platforms as well as the platform in near space-a …

Due to the reference signal based on the fixed reference range is used in the range
migration (RM) algorithm, the RM algorithm is not available to process an airborne squint …

This paper proposed a new approach to focus the very high resolution spaceborne sliding
spotlight synthetic aperture radar (SAR) data. The main singularity of the approach is …

This paper analyzes the azimuth spectrum folding problem which arises from the
dependence of the Doppler centroid on range frequency in squinted spotlight synthetic …

Standard sliding spotlight imaging algorithms are inefficient due to the additional processing
to overcome the azimuth spectra aliasing. In this paper, based on azimuth frequency de …

Image formation from squinted sliding spotlight synthetic aperture radar (SAR) is limited by
azimuth spectral folding and severe two dimension coupling. This paper presents an …