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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.
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The relativistic Doppler effect is the change in frequency, wavelength and amplitude [1] of light, caused by the relative motion of the source and the observer (as in the classical Doppler effect, first proposed by Christian Doppler in 1842 [2]), when taking into account effects described by the special theory of relativity.
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All following user names refer to en.wikipedia. 2006-02-23 23:36 Splash 800×665× (50151 bytes) fix stretch and size problems 2006-02-23 00:35 Splash 200×200× (330178 bytes) Doppler power spectral density of [[Rayleigh fading]] with a maximum [[Doppler effect|Doppler shift]] of 10Hz.