SMALL BEACONS AND TRANSPONDERS FOR PERSONNEL AND VEHICLE LOCATION AND CONTROL: A REVIEW

Authors
  1. Johnson, F.A.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
Probable future applications of small beacons and transponders are discussed, together with the limitations which might be imposed on their use in urban areas because of the problems associated with the propagation characteristics of RF signals in such an environment. Techniques which have been employed to locate various forms of transponders at long, medium, and short ranges are described, and the lack of information concerning suitably small antennas is emphasized. Some small transponder units which have already been developed, and others which have been proposed, are listed. The installation of transponders and antennas in vehicles, where the metallic body shell may create special difficulties, is discussed briefly.
Report Number
658 —
Date of publication
15 Jun 1972
Number of Pages
29
DSTKIM No
72-05729
CANDIS No
16017
Format(s):
Hardcopy;Originator's fiche received by DSIS

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