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2. Continuous-wave radar - Wikipedia

   en.wikipedia.org/wiki/Continuous-wave_radar

   Continuous-wave radar. 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 ...

3. Doppler effect - Wikipedia

   en.wikipedia.org/wiki/Doppler_effect

   The Doppler effect (also Doppler shift) is the change in the frequency of a wave in relation to an observer who is moving relative to the source of the wave. [ 1][ 2][ 3] The Doppler effect is named after the physicist Christian Doppler, who described the phenomenon in 1842. A common example of Doppler shift is the change of pitch heard when a ...

4. Synthetic-aperture radar - Wikipedia

   en.wikipedia.org/wiki/Synthetic-aperture_radar

   Synthetic-aperture radar ( SAR) is a form of radar that is used to create two-dimensional images or three-dimensional reconstructions of objects, such as landscapes. [ 1] SAR uses the motion of the radar antenna over a target region to provide finer spatial resolution than conventional stationary beam-scanning radars.

5. WHDH (TV) - Wikipedia

   en.wikipedia.org/wiki/WHDH_(TV)

   Channel 7's nightly broadcasts of Lottery Live and the periodic sweepstakes specials were integral in fielding this success for the lottery; this, combined with Lottery Live pulling in high ratings as a part of the Wheel of Fortune/Jeopardy! hour, which ranked first place in 7 p.m. to 8 p.m. prime access, caused the station to renew the lottery ...

6. Jordan Chiles Heartbroken Over Stripped Olympics Medal, Says ...

   www.aol.com/jordan-chiles-heartbroken-over...

   Jordan Chiles issued a statement on social media in which she reacted to the “devastating news” that her Olympic bronze medal has been stripped. The U.S. gymnast originally took home the medal ...

7. Arleigh Burke-class destroyer - Wikipedia

   en.wikipedia.org/wiki/Arleigh_Burke-class_destroyer

   The Arleigh Burke class of guided-missile destroyers (DDGs) is a United States Navy class of destroyer centered around the Aegis Combat System and the SPY-1D multi-function passive electronically scanned array radar. The class is named for Admiral Arleigh Burke, an American destroyer officer in World War II and later Chief of Naval Operations.

8. Ground-penetrating radar - Wikipedia

   en.wikipedia.org/wiki/Ground-penetrating_radar

   Ground-penetrating radar ( GPR) is a geophysical method that uses radar pulses to image the subsurface. It is a non-intrusive method of surveying the sub-surface to investigate underground utilities such as concrete, asphalt, metals, pipes, cables or masonry. [ 1] This nondestructive method uses electromagnetic radiation in the microwave band ...

9. Rayleigh fading - Wikipedia

   en.wikipedia.org/wiki/Rayleigh_fading

   Rayleigh fading. Rayleigh fading is a statistical model for the effect of a propagation environment on a radio signal, such as that used by wireless devices. Rayleigh fading models assume that the magnitude of a signal that has passed through such a transmission medium (also called a communication channel) will vary randomly, or fade, according ...