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Planet Earth Live is a live-action nature documentary screened on British television. Produced by the BBC Natural History Unit and broadcast in May 2012, the programme was presented by Richard Hammond and Julia Bradbury .
Initial funding for DriveTribe came from Clarkson, Hammond and May, before DriveTribe raised $5.5m from Breyer Capital via Jim Breyer, one of the first Facebook investors, [20] and Atomico, followed by $6.5m from 21st Century Fox three weeks later and pre-launch, [21] [18] with Fox noting to TechCrunch "We saw the DriveTribe platform and we ...
A Doppler radar is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance. [1] It does this by bouncing a microwave signal off a desired target and analyzing how the object's motion has altered the frequency of the returned signal.
NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the ...
Antenna motion for pulse-Doppler must be as slow as radar using MTI. Search radar that include pulse-Doppler are usually dual mode because best overall performance is achieved when pulse-Doppler is used for areas with high false alarm rates (horizon or below and weather), while conventional radar will scan faster in free-space where false alarm ...
Roswell recorded 5.78” of rainfall Saturday, which set a record for any date, surpassing the prior mark of 5.65” set November 1, 1901, according to the National Weather Service.It also broke ...
Pulse Doppler radar may have 50 or more pulses between the radar and the reflector. Pulse Doppler relies on medium pulse repetition frequency (PRF) from about 3 kHz to 30 kHz. Each transmit pulse is separated by 5 km to 50 km distance. Range and speed of the target are folded by a modulo operation produced by the sampling process.
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