NDLI: Upgrade of the 92 ghz airborne multi-channel meteorological radiometer (ammr)

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Upgrade of the 92 ghz airborne multi-channel meteorological radiometer (ammr)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Gasiewski, A. J. Kunkee, D. B.
Copyright Year	1994
Description	The AMMR 92 GHz dual polarized radiometer (AMMR-92) has been used to perform experiments in the Laboratory for Radioscience and Remote Sensing at Georgia Tech during two periods, the first period was from March 1991 to November 1992, and the second period was from March 1993 to September 1993. Early in the first period a polarization correlation channel was added to the radiometer. This new channel can be configured to measure the third (Re(E(sub v)E(sub h)(sup )) or fourth (Im(E(sub v)E(sub h)(sup )) Stokes parameter in the radiometer's feedhorn polarization basis. Operation of the instrument as a polarization correlating radiometer is does not affect its originally intended operation as a dual-polarized radiometer. Investigations with the AMMR-92 at Georgia Tech have uncovered some problems which may compromise the accuracy of the instrument. These problems are not related to the installation of the new cross-correlating channel but are inherent in the original design. This report discusses the following topics: (1) Splash-plate alignment; (2) Replacement of calibration load with pyramidal type; (3) Mixer upgrade; and (4) Installation of a video blanking circuit.
File Size	127217
Page Count	4
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19950016791
Archival Resource Key	ark:/13960/t53f9pg9w
Language	English
Publisher Date	1994-05-06
Access Restriction	Open
Subject Keyword	Meteorology And Climatology Tropical Meteorology Microwave Radiometers Polarization Airborne Equipment Circuits Calibrating Antenna Feeds Remote Sensing Mixers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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