Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1975-11-10
1977-08-09
Wilbur, Maynard R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343113R, G01S 302
Patent
active
040414949
ABSTRACT:
The direction and/or distance between a fixed point and a vehicle or between two vehicles located on a common vehicle way are measured by an intermediate frequency interferometric technique wherein signals are transmitted from a single antenna to a receiver system comprising three equally spaced linearly arranged antennas. The technique encompasses determination of the path length differences between the transmitting antenna and each of the receiving antennas. The path length differences are thereafter employed to compute the distance to and/or direction between the transmitting antenna and the linearly aligned receiving antennas.
REFERENCES:
patent: 3005200 (1961-10-01), O'Meara
patent: 3046549 (1962-07-01), Kalmus
patent: 3510871 (1970-05-01), Watanbe et al.
patent: 3842419 (1974-10-01), Arndt
Ewen Harold I.
Haroules George G.
Blum T. M.
Deeley, Jr. Harold P.
Farmer Herbert E.
The United States of America as represented by the Secretary of
Wilbur Maynard R.
LandOfFree
Distance measuring method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Distance measuring method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distance measuring method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1232095