| 释义 |
- System characteristics
- Research and educational pursuits
- External links
- References
{{update|date=December 2016}}OU-PRIME (Polarimetric Radar for Innovations in Meteorology and Engineering) was an advanced Doppler weather radar. It was completed in January 2009 after a ten-month construction period and commissioned on April 4, 2009.[1][2] It is operated by the Advanced Radar Research Center (ARRC) at the University of Oklahoma (OU). The radar was manufactured by Enterprise Electronics Corporation to provide OU students and faculty a platform for research and education in the field of radar meteorology. This C-band polarimetric radar has some of the highest resolution data of any C-band weather radar in the United States.[1][2][3][4]OU-PRIME was struck by lightning on 19 March 2012 around 9:20am local time. Since then, the radar has not been operated due to damage.[1] System characteristics OU-PRIME, aka OU', is located on the Research Campus of the University of Oklahoma within walking distance of the National Weather Center building. Through a unique design, OU-PRIME can provide real-time time-series data providing opportunities for rapid developments in radar signal processing algorithms. Because of its C-band wavelength and 1 MW transmit power, OU-PRIME is extremely sensitive to clouds with approximately 10 dB more sensitivity over the NEXRAD system (S-band). Characteristics:[4] - Location {{coord|35|10|48.8|N|97|26|0.6|W|display=inline,title}}
- Radiating Center Height is 80 feet (24.4 m)
- Operating frequency: 5510 MHz (C-band)
- Wavelength: 5.44 cm
- Pulse Length: 0.4, 0.8, 1.0, 2.0 µs
- Pulse Repetition Frequency: 300–2000 Hz, 1 Hz step
- 1 MW Peak Power (magnetron with solid-state modulator)
- 8.5-meter Andrew precision C-band dish
- High angular resolution: 0.45 degrees @ -3 dB points
- Gain: 50 dBi
- Sidelobe Level: Better than -26 dB one-way
- Cross-Pol: Better than -30 dB
- Rotation rate: 6-25 deg/s under typical scanning (30 deg/s max)
- Minimum Detectable Signal: -112 dBm
- Radar Sensitivity: -15 dBZ at 50 km
- Noise Figure: 3 dB
- Simultaneous dual-polarization
- Flexible computing platform for real-time algorithm development
- Real-time I/Q data recording/processing
- A/D converter resolution: 16 bit
- Receiver bandwidth: 6 MHz
- Gate spacing: 25–500 m
- Number of range gates: up to 2200
- Clutter suppression: 60 dB (automatic detection/suppression using CLEAN-AP )
- Advanced signal processing framework based on new STEP algorithm, including clutter estimation/suppression and multi-lag moment estimation
Research and educational pursuits - An integral part of OU's [https://web.archive.org/web/20080917172519/http://arrc.ou.edu/education/ Weather Radar Curriculum]
- Non-precipitating cloud studies
- Advanced signal processing algorithm development (e.g. Doppler spectrum)
- Weather radar polarimetry / QPE
- Next-generation digital receiver design
- Severe weather detection algorithms based on spectral processing
- Precipitation microphysics
- Radar-based aerobiology
- Adaptive real-time processing
- Cloud physics and electrification
- Storm dynamics
External links{{Commons category|OU-PRIME radar}}- OU-PRIME website & real-time display
- ARRC website
- University of Oklahoma website
- University of Oklahoma opens student access to advanced weather radar, Tulsa World, April 2009.
- [https://www.usatoday.com/weather/news/2009-04-05-radar-oklahoma_N.htm New weather radar unveiled at Univ. of Oklahoma, USA TODAY, April 2009.]
- Enterprise Electronics Corporation
References1. ^1 2 {{Cite news|url=http://arrc.ou.edu/news/Radar_Commissioning.pdf|format=pdf|title=THE UNIVERSITY OF OKLAHOMA TO HOLD COMMISSIONING CEREMONY FOR NEWEST RADAR|author=Advanced Radar Research Center |publisher=University of Oklahoma |date=April 3, 2009|accessdate=2009-04-15}} {{Dead link|date=October 2010|bot=H3llBot}}
2. ^1 {{Cite news|url=http://oudaily.com/news/2009/jan/21/hi-def-radar-comes-south-campus/ |title=Hi-def radar comes to South Campus|author=Clark Foy |journal=The Oklahoma Daily|date=January 2009|accessdate=2009-04-15}}
3. ^{{Cite news|url=http://www.newsok.com/ou-prime-captures-information-from-february-tornado/article/3350356|title=OU-PRIME captures information from February tornado|author=Bryan Painter |journal=The Oklahoman Direct|date=March 7, 2009|accessdate=2009-04-15}}
4. ^1 {{Cite web|url=http://arrc.ou.edu/ouprime/OUPRIME_UserFlyer.pdf|format=pdf|title=OU-PRIME|author=Advanced Radar Research Center |publisher=University of Oklahoma |date=|accessdate=2009-04-15}} {{Dead link|date=October 2010|bot=H3llBot}}
{{University of Oklahoma}} 2 : Weather radars|University of Oklahoma campus |