On the basis of the MultiChannel Autofocus (MCA) algorithm and the Fourier-domain
MultiChannel Autofocus (FMCA) algorithm, an autofocus algorithm for airborne SAR based …

The effect of the range migration to the Shift-And-Correlate Monopulse Secondary
Surbeillause Redar (SAC) algorithm is analyzed in this paper. The conclusion is that the …

In the high resolution SAR, the effect of motion error at the azimuth direction is more severe.
Though the traditional Phase Gradient Autofocus (PGA) algorithm can be used to estimate …

According to the characteristics of different airborne synthetic aperture radar (SAR) imaging
modes, a generalized sub-aperture autofocus scheme based on Doppler rate (DR) …

Abstract The Short-Time Fourier Transform (STFT) is an important method widely used in the
study of the nonstationary signals. After discussing the filtering and the estimation of chirp …

Radar (SAR) autofocus processing, whose performance degenerates with low contrast of
the scene. This paper proposes an improved RDM for SAR autofocusing. Based on the …

This paper extends the concept of autofocus in SAR processing procedure and proposes an
adaptive algorithm for SAR data focusing. The novel algorithm discards the hypothesis in the …

A practical modified autofocus algorithm for synthetic aperture radar, the iterative shift-and-
correlation algorithm, is presented, Comparing with the original shift-and-correlation …

In a real airborne synthetic aperture radar (SAR), its major phase errors are usually
composed of two categories, such as slow-time varying phase errors (less than several …

Wide-Angle (WA) synthetic aperture radar (SAR) has shown remarkable performance in
high-resolution mapping, and its mostly used imaging algorithm, fast factorized back …