A digital calibration method for synthetic aperture radar systems

Author

Larson, R.W. ; Jackson, P.L. ; Kasischke, Eric S.

Author_Institution

Environ. Res. Inst. of Michigan, Ann Arbor, MI, USA

Volume

26

Issue

6

fYear

1988

fDate

11/1/1988 12:00:00 AM

Firstpage

753

Lastpage

763

Abstract

A basic method to calibrate imagery from synthetic aperture radar (SAR) systems is presented. SAR images are calibrated by monitoring all the terms of the radar equation. This procedure includes the use of both external (calibrated reference reflectors) and internal (system-generated calibration signals) sources to monitor the total SAR system transfer function. To illustrate the implementation of the procedure, two calibrated SAR images (X-band, 3.2-cm wavelength) are presented, along with the radar cross-section measurements of specific scenes within each image. The sources of error within the SAR image calibration procedure are identified

Keywords

calibration; geophysical prospecting; geophysical techniques; radar applications; radar systems; remote sensing; 32 mm; SAR image; SAR radar system; X-band; basic method; digital calibration method; imagery; land surface; remote sensing technique; synthetic aperture radar; transfer function; Calibration; Equations; Layout; Monitoring; Radar antennas; Radar cross section; Radar imaging; Spaceborne radar; Synthetic aperture radar; Uncertainty;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.7707

Filename

7707