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Doppler effect. The emitted signal toward the car is reflected back with a variation of frequency that depends on the speed away/toward the radar (160 km/h). This is only a component of the real speed (170 km/h). The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference ...
The Weather Network ( TWN) is a Canadian English-language discretionary weather information specialty channel available in Canada, the United States and the United Kingdom. It delivers weather information on television, digital platforms (responsive websites, mobile and tablet applications) and TV apps. The company is owned by Pelmorex Media ...
Get the New York, NY local weather forecast by the hour and the next 10 days.
Severe weather and the likelihood of more tornadoes will return to the central United States, spanning Tuesday evening, Wednesday and Thursday, AccuWeather meteorologists warn. Along with the ...
Radar is a system that uses radio waves to determine the distance ( ranging ), direction ( azimuth and elevation angles ), and radial velocity of objects relative to the site. It is a radiodetermination method [1] used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain.
AN/APG-63. The AN/APG-63 and AN/APG-70 are a family of all-weather multimode radar systems designed by Hughes Aircraft (later Raytheon) for the F-15 Eagle air superiority fighter. These X band pulse-Doppler radar systems are designed for both air-air and air-ground missions; they are able to look up at high-flying targets and down at low-flying ...
A stormy Memorial Day weekend across the nation ended with another risk of severe weather in the Northeast, where AccuWeather meteorologists correctly forecasted that storms packing damaging winds ...
ARMOR is a modified WSR-74 C-Band (5625 MHz) radar with a 0.5 - 1.0° resolution in azimuth and a spatial resolution varying from 60 to 500 meters, with a typical resolution of 150m. ARMOR sits 206 meters above sea level. The pulse length can vary from 0.4 to 4 microseconds and its peak power is 350 kW.