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 (SNL), Albuquerque, NM, and Livermore, CA (United States)
- 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. https://doi.org/10.2172/923537
Doerry, Armin Walter. 2006.
"Automatic compensation of antenna beam roll-off in SAR images.". United States. https://doi.org/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},
url = {https://www.osti.gov/biblio/923537},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Apr 01 00:00:00 EST 2006},
month = {Sat Apr 01 00:00:00 EST 2006}
}
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