A system model and inversion for synthetic aperture radar imaging

1 January 1992

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Image Processing

Vol. 1 (1) , 64-76
https://doi.org/10.1109/83.128031

Abstract

A system model and its corresponding inversion for synthetic aperture radar (SAR) imaging are presented. The system model incorporates the spherical nature of a radar's radiation pattern at far field. The inverse method based on this model performs a spatial Fourier transform (Doppler processing) on the recorded signals with respect to the available coordinates of a translational radar (SAR) or target (inverse SAR). It is shown that the transformed data provide samples of the spatial Fourier transform of the target's reflectivity function. The inverse method can be modified to incorporate deviations of the radar's motion from its prescribed straight line path. The effects of finite aperture on resolution, reconstruction, and sampling constraints for the imaging problem are discussed.

Keywords

This publication has 14 references indexed in Scilit:

Bistatic synthetic aperture radar inversion with application in dynamic object imaging
IEEE Transactions on Signal Processing, 1991
Phase restoration in synthetic aperture radar imaging
Published by Institute of Electrical and Electronics Engineers (IEEE) ,1991
Echo imaging using physical and synthesized arrays
Optical Engineering, 1990
Speckle processing method for synthetic-aperture-radar phase correction
Optics Letters, 1989
Band-limited interpolation from unevenly spaced sampled data
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1988
The Prediction of Geometric Distortions in Airborne Synthetic Aperture Radar Imagery from Autofocus Measurements
IEEE Transactions on Geoscience and Remote Sensing, 1987
Developments in Radar Imaging
IEEE Transactions on Aerospace and Electronic Systems, 1984
A tomographic formulation of spotlight-mode synthetic aperture radar
Proceedings of the IEEE, 1983
Range-Doppler Imaging of Rotating Objects
IEEE Transactions on Aerospace and Electronic Systems, 1980
Density reconstruction using arbitrary ray-sampling schemes
Proceedings of the IEEE, 1978