NDLI: Calibration of a polarimetric imaging sar

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Calibration of a polarimetric imaging sar

Content Provider	NASA Technical Reports Server (NTRS)
Author	Ulaby, F. T. Pierce, L. E. Sarabandi, K.
Copyright Year	1991
Description	Calibration of polarimetric imaging Synthetic Aperture Radars (SAR's) using point calibration targets is discussed. The four-port network calibration technique is used to describe the radar error model. The polarimetric ambiguity function of the SAR is then found using a single point target, namely a trihedral corner reflector. Based on this, an estimate for the backscattering coefficient of the terrain is found by a deconvolution process. A radar image taken by the JPL Airborne SAR (AIRSAR) is used for verification of the deconvolution calibration method. The calibrated responses of point targets in the image are compared both with theory and the POLCAL technique. Also, response of a distributed target are compared using the deconvolution and POLCAL techniques.
File Size	18029606
Page Count	10
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19920018789
Archival Resource Key	ark:/13960/t1kh5h36v
Language	English
Publisher Date	1991-08-01
Access Restriction	Open
Subject Keyword	Communications And Radar Error Analysis Terrain Calibrating Backscattering Radar Corner Reflectors Imaging Techniques Radar Targets Polarimetry Radar Imagery Synthetic Aperture Radar Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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