ISAR Sparse Aperture Imaging Algorithm for Large Size Target

A weighted eigenvector autofocus method for sparse-aperture ISAR imaging

With the development of multi-functional radar systems, inverse synthetic aperture radar (ISAR) imaging with sparse-aperture (SA) data has drawn considerable attention in the recent years. Motion compensation and imaging are among the most significant challenges that SA-ISAR imaging frequently faces. In this paper, we focus on the autofocus scheme, in which a modified eigenvector-based autofocu...

Adaptive CLEAN Algorithm for High Resolution Inverse synthetic aperture radar (ISAR) Imaging For Vehicular Application

High resolution RADAR images of contiguous targets like vehicles on road often suffer from side lobe enhancement. This leads to false alarm in target detection and degradation in image quality. In this paper, adaptive CLEAN algorithms are introduced to eliminate side lobe enhancement and significantly improve the target detection with better image quality. The effectiveness of the CLEAN algorit...

Autofocus for inverse synthetic aperture radar (ISAR) imaging

Sparse Aperture Radar Imaging

Radar data collected from airplanes in real time is generally sparse except in very special cases. We demonstrate several tools and approaches to form images in some examples.

Generalized ISAR Imaging of Sea Target

A generalized ISAR approach to solve the SAR problem for ship target image reconstruction is considered. A new definition of three dimensional (3-D) SAR scenario is suggested. An analytical geometrical approach to define apparent Yaw, Pitch and Roll angle of the ship target at sea is implemented. The target is presented as an assembly of point scatterers. Mathematical expressions to calculate r...