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Title: Automatic compensation of antenna beam roll-off in SAR images.

Abstract

The effects of a non-uniform antenna beam are sometimes visible in Synthetic Aperture Radar (SAR) images. This might be due to near-range operation, wide scenes, or inadequate antenna pointing accuracy. The effects can be mitigated in the SAR image by fitting very a simple model to the illumination profile and compensating the pixel brightness accordingly, in an automated fashion. This is accomplished without a detailed antenna pattern calibration, and allows for drift in the antenna beam alignments.

Authors:
Publication Date:
Research Org.:
Sandia National Laboratories
Sponsoring Org.:
USDOE
OSTI Identifier:
923537
Report Number(s):
SAND2006-2632
TRN: US200806%%297
DOE Contract Number:
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; ANTENNAS; ALIGNMENT; BRIGHTNESS; CALIBRATION; RADAR; IMAGE PROCESSING; Resolution (Optics); Antenna arrays.; Antenna radiation patterns.; Synthetic Aperture Radar.

Citation Formats

Doerry, Armin Walter. Automatic compensation of antenna beam roll-off in SAR images.. United States: N. p., 2006. Web. doi:10.2172/923537.
Doerry, Armin Walter. Automatic compensation of antenna beam roll-off in SAR images.. United States. doi:10.2172/923537.
Doerry, Armin Walter. 2006. "Automatic compensation of antenna beam roll-off in SAR images.". United States. doi:10.2172/923537. https://www.osti.gov/servlets/purl/923537.
@article{osti_923537,
title = {Automatic compensation of antenna beam roll-off in SAR images.},
author = {Doerry, Armin Walter},
abstractNote = {The effects of a non-uniform antenna beam are sometimes visible in Synthetic Aperture Radar (SAR) images. This might be due to near-range operation, wide scenes, or inadequate antenna pointing accuracy. The effects can be mitigated in the SAR image by fitting very a simple model to the illumination profile and compensating the pixel brightness accordingly, in an automated fashion. This is accomplished without a detailed antenna pattern calibration, and allows for drift in the antenna beam alignments.},
doi = {10.2172/923537},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2006,
month = 4
}

Technical Report:

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