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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 ...
[21] [22] On December 3, 2009, the Russian Government approved the federal target programme "Development of TV and Radio Broadcasting in the Russian Federation in 2009-2018". [23] The main objective of the programme was to provide the population of the Russian Federation with free-to-air multichannel digital TV and radio broadcasting. [24]
The scale of dBZ values can be seen along the bottom of the image. Decibel relative to Z, or dBZ, is a logarithmic dimensionless technical unit used in radar, mostly in weather radar, to compare the equivalent reflectivity factor (Z) of a remote object (in mm 6 per m 3) to the return of a droplet of rain with a diameter of 1 mm (1 mm 6 per m 3). [1]
Continuous-wave radar (CW radar) is a type of radar system where a known stable frequency continuous wave radio energy is transmitted and then received from any reflecting objects. [1] Individual objects can be detected using the Doppler effect , which causes the received signal to have a different frequency from the transmitted signal ...
Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction. Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.).
The total technical coverage includes more than 115 million people. The broadcasting the Mir 24 is available to viewers in 22 countries, including South Africa. Beginning on 13 January 2014, Mir 24 TV channel will be re-transmitted on the frequency of Mir television channel on weekdays from 6:00 to 9:15 in the morning information block 180 minutes.
MOSCOW (Reuters) -A Russian court has sentenced Alsu Kurmasheva, a Russian-American journalist for U.S.-funded Radio Free Europe/Radio Liberty (RFE/RL), to 6-1/2 years in prison for spreading ...
Live. Moscow 24 ( Russian: Москва 24) is a Russian 24-hour TV channel, [1] a part of the "Moscow Media" Incorporated editorial office of Moscow media sources and referred to All-Russia State Television and Radio Broadcasting Company (VGTRK). [2] The Channel is headquartered in Moscow City with its production facilities and operations, and ...