A polarization diversity meteorological radar system /
James I. Metcalf, Graham M. Armstrong, Alexander W. Bishop.

Description

Main Author

Metcalf, James I.

Related Names

Bishop, Alexander W., author.
Armstrong, Graham M., author.
U.S. Air Force Geophysics Laboratory.

Language(s)

English

Published

Hanscom AFB, Massachusetts : Air Force Geophysics Laboratory, United States Air Force, 1987.

Subjects

Radar meteorology.
Radar > Radar / Equipment and supplies.
Meteorology > Meteorology / Measurement.
Doppler radar.
Radar > Radar / Equipment and supplies.
Meteorology > Meteorology / Measurement.
Doppler radar.
Radar meteorology.

Summary

The AFGL 10-cm Doppler weather radar was modified to enable the measurement of the differential reflectivity between horizontal and vertical polarizations in addition to the absolute reflectivity and the Doppler mean velocity and spectrum variance. Polarization switching is achieved by means of a diplexer, which separates at the antenna the transmitted signals of two frequencies, 2710 and 2760 MHz, and permits nearly simultaneous transmission of signals of orthogonal polarizations. Signals of these frequencies can be transmitted either with horizontal and vertical polarization, respectively, or with left and right circular, polarization, respectively. We describe the design and performance of the diplexer and the performance of the real-time data processor, present examples of meteorological measurements, and discuss future developments of the radar system. Keywords: Polarization diversity weather radar, Dual polarization radar, and Polarization switching.

Note

Research supported by the Air Force Geophysics Laboratory, United States Air Force, Hanscom AFB, Massachusetts.
Atmospheric Sciences Division Project 6670.
ADA189291 (from http://www.dtic.mil).
"19 March 1987."

Physical Description

vi, 25 pages : illustrations ; 28 cm.

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