On the near-zone inverse Doppler effect
Attention is invited to the recently discovered inverse Doppler effect which occurs in the near-zone field of an antenna emitting a continuous wave. On approaching the antenna, the received signal is blue-shifted in the far zone and then red-shifted in the near zone; and on receding from the antenna, the received signal is blue-shifted in the near zone and then red-shifted in the far zone. Calculations are presented for the ease where the antenna is a simple dipole. It is shown that this effect gives not only the vector velocity of the moving receiver but also its range, i.e., its distance from the antenna.
Additional Information© 1980 IEEE. Manuscript received June 15, 1979; revised December 7, 1979. This work was supported by the U.S. Army Research Office under Contract DAAG29-77-G-0130.
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