Simulation, acquisition and analysis of passive millimeter-wave images in remote sensing applications

Simulation, acquisition and analysis of passive millimeter-wave images in remote sensing applications

We report on the development of a passive millimeter-wave (MMW) imager for remote sensing, and the comparison of the experimentally acquired images with the theoretical images from our MMW scene simulator. The imager has an aperture diameter of 0.6m, and the detector and the imaging optics are mecha...

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Veröffentlicht in:Optics express 2008-12, Vol.16 (25), p.20503
Hauptverfasser: Fetterman, M R, Grata, J, Jubic, G, Kiser, Jr, W L, Visnansky, A
Format: Artikel
Sprache:eng
Schlagworte:
Algorithms
Computer Simulation
Environmental Monitoring - methods
Image Enhancement - methods
Image Interpretation, Computer-Assisted - methods
Microwaves
Models, Theoretical
Reproducibility of Results
Sensitivity and Specificity
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Zusammenfassung:We report on the development of a passive millimeter-wave (MMW) imager for remote sensing, and the comparison of the experimentally acquired images with the theoretical images from our MMW scene simulator. The imager has an aperture diameter of 0.6m, and the detector and the imaging optics are mechanically raster-scanned over the scene to form an image. The angular resolution was experimentally found to be 0.4 degrees, which is close to the theoretical diffraction limit of 0.37 degrees, and the imager NEDT was measured to be 0.9 K. Qualitatively, simulated MMW imagery showed good agreement with an experimental MMW image.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.16.020503