Title :
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
fDate :
11/1/1988 12:00:00 AM
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;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
