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Pulse-Doppler radar. A pulse-Doppler radar is a radar system that determines the range to a target using pulse-timing techniques, and uses the Doppler effect of the returned signal to determine the target object's velocity. It combines the features of pulse radars and continuous-wave radars, which were formerly separate due to the complexity of ...
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 ...
KWQC-DT2 is the Ion Television–affiliated second digital subchannel of KWQC-TV, broadcasting in standard definition on channel 6.2.. On August 13, 2007, KWQC launched a local digital weather service called the "KWQC 24/7 Weather Channel" on over-the-air digital subchannel 6.2 and on Mediacom digital channel 247 in the Quad Cities and surrounding areas.
KWWL (channel 7) is a television station licensed to Waterloo, Iowa, United States, serving as the NBC affiliate for Eastern Iowa. Owned by Allen Media Broadcasting, KWWL maintains studios on East 5th Street in Waterloo, with news bureaus and advertising sales offices in Cedar Rapids, Dubuque and Iowa City.
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 ...
In December 1960, Valley Telecasting sold WFRV-TV to Valley Broadcasting Company, a subsidiary of WAVE-TV at Louisville, Kentucky, for $1.09 million. [17] WFRV's first attempt at expanding to the Upper Peninsula, a construction permit to build channel 8 at Iron Mountain, Michigan, was scrapped at the company's request days after the sale, as was an application by the company to build a channel ...
University of Iowa archaeologists have uncovered the first-ever well-preserved mastodon skull scientifically excavated from the state of Iowa — a find that notably dates to when the first humans ...
However, since humans reflect far less radar energy than metal does, these systems require sophisticated technology to isolate human targets and moreover to process any sort of detailed image. Through-the-wall radars can be made with Ultra Wideband impulse radar, micro-Doppler radar, and synthetic aperture radar (SAR). [5] Imaging radar; 3D radar