Simultaneous dual polarization radar system

Communications: directive radio wave systems and devices (e.g. – Radar for meteorological use

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C342S188000

Reexamination Certificate

active

06859163

ABSTRACT:
A simultaneous dual polarization radar system is disclosed that utilizes a RF power divider to replace the high speed dual polarization switches utilized in current dual polarization radar systems. The disclosed systems allow for transmission and reception in both horizontal and vertical signal modes simultaneously while repositioning critical receiver components above the elevation rotary coupler in a radar pedestal. A bypass switch is also utilized to allow for mode switching of a radar system and a dual polarization reception design is shown to allow for the economical capturing of linear depolarization ratios of selected atmospheric areas. These new designs eliminate the current problems experienced in current dual polarization radar system of long dwell times and velocity range reductions, and the elimination of the relatively expensive and unreliable polarization switch.

REFERENCES:
patent: 4684951 (1987-08-01), Baumer
patent: 4868917 (1989-09-01), Woolcock
patent: 5500646 (1996-03-01), Zrnic
patent: 5621410 (1997-04-01), Gray et al.
patent: 5793334 (1998-08-01), Anderson et al.
patent: 5940776 (1999-08-01), Baron et al.
patent: 6061013 (2000-05-01), Sauvageot et al.
Doviak, R.J., V. Bringi, A. Ryzhkov, A. Zahrai, D.S. Zrnic'. “Considerations for Polarimetric Upgrades to Operational WSR-88D Radars.” Journal of Atmospheric and Oceanic Technology, Mar. 2000, vol. 17, pps. 257-278.
Liu, Y., J.W. Conway, E.A. Brandes, A.V. Rzyhkov, J. Vivekanandan, D.S. Zrnic, and R. Oye. “The Use of Polarization Data in the Operational Identification of Hydrometeor and Non-hydrometeor Targets.” Preprints, 29th Conf. Radar Meteor. Montreal, Canada: American Meteorological Society 1999: pps. 178-179.
Ryzhkov A., R. Lopez, R. Fulton, D. Zrnic, T. Schuur, and Y. Liu. “Hydrometeor Classification with a Polarimetric Radar for Improved Rainfall Measurements and detection of Hail and Electrically Charged Regions.” Preprints, 29th Conference on Radar Meteorology. Montreal, Canada: American Meteorological Society, 1999: pps. 289-292.
Next Generation Weather Radar Program Operational Support Facility.
Skolnik, Merrill I., “Introduction to Radar Systems.”, New York: 3rd ed 2001.
Vivekanandan, J., D.S. Zrnic, S.M. Ellis, R. Oye, A.V. Ryzhkov, and J. Straka. “Cloud Microphysics Retrieval Using S-band Dual-polarization Radar Measurements.” Bulletin of the American Meteorological Society 1999: pps. 381-388.
Zahrai Allen and Dr. Dusan Zrnic. “Implementation of Polarimetric Capability for the WSR-88D (NEXRAD) Radar.” Long Beach, CA. American Meteorological Society 1997.
Zrnic, D.S., and A.V. Ryzhkov. “Polarimetry for Weather Surveillance Radars.” Bulletin of the American Meteorological Society 1999: pps. 389-406.
Zrnic, D.S., Zahrai, A., Doviak, R.J., Carter, J., and Torres, S. “Polarimetric Upgrades of the NOAA's WSR-88D Research and Development Radar” 7.14.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Simultaneous dual polarization radar system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Simultaneous dual polarization radar system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simultaneous dual polarization radar system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3450879

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.