Inverse Doppler Effect

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Scientific Paper
Title Inverse Doppler Effect
Author(s) Leslee A Kulba
Keywords group velocity, inverse Doppler effect, phase velocity, Sedden and Bearpark
Published 2004
Journal Electric Spacecraft Journal
Number 38
Pages 24-26


Ordinarily, the wavelength of radiation will be increased upon reflection from a receding surface. An electrical circuit has been constructed in which RF generated by a disturbance reflects off the receding disturbance with a shorter wavelength. Following this sleight of hand requires keeping track of the phase and group velocities.