NDLI: Calibration and image reconstruction for the hurricane imaging radiometer (hirad)

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Calibration and image reconstruction for the hurricane imaging radiometer (hirad)

Content Provider	NASA Technical Reports Server (NTRS)
Author	James, Mark W. Biswas, Sayak Miller, Timothy Roberts, J. Brent Ruf, Christopher
Copyright Year	2012
Description	The Hurricane Imaging Radiometer (HIRAD) is a new airborne passive microwave synthetic aperture radiometer designed to provide wide swath images of ocean surface wind speed under heavy precipitation and, in particular, in tropical cyclones. It operates at 4, 5, 6 and 6.6 GHz and uses interferometric signal processing to synthesize a pushbroom imager in software from a low profile planar antenna with no mechanical scanning. HIRAD participated in NASA s Genesis and Rapid Intensification Processes (GRIP) mission during Fall 2010 as its first science field campaign. HIRAD produced images of upwelling brightness temperature over a aprox 70 km swath width with approx 3 km spatial resolution. From this, ocean surface wind speed and column averaged atmospheric liquid water content can be retrieved across the swath. The calibration and image reconstruction algorithms that were used to verify HIRAD functional performance during and immediately after GRIP were only preliminary and used a number of simplifying assumptions and approximations about the instrument design and performance. The development and performance of a more detailed and complete set of algorithms are reported here.
File Size	102748
Page Count	4
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20120014941
Archival Resource Key	ark:/13960/t81k4d85n
Language	English
Publisher Date	2012-07-22
Access Restriction	Open
Subject Keyword	Radiometers Tropical Storms Airborne Equipment Calibrating Synthetic Apertures Hurricanes Antennas 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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