G - Physics – 01 – S
Patent
G - Physics
01
S
G01S 13/36 (2006.01) B25J 13/08 (2006.01) G01B 11/24 (2006.01) G01N 23/20 (2006.01) G01S 7/35 (2006.01) G01S 13/42 (2006.01) G01V 3/12 (2006.01)
Patent
CA 2563146
A method, an antenna, and a system for determining positions for reflection points using microwaves. An electromagnetic wave signal is generated at a defined frequency, and transmitted by an antenna unit. the antenna unit includes a transmitter antenna and a plurality of receiver antennas, separated by a known spacing perpendicular to a main line of sight and devised to receive reflected portions of the transmitted wave. Phase comparator means are connected to the transmitter antenna and the receiver antennas, and a control unit connected to the phase comparator means is operable to calculate an angle to a reflection point from detected phase difference between at least two receiver antennas and the spacing between said at least two receiver antennas, and to calculate a distance to the reflection point from detected phase difference between the transmitter antenna and a receiver antenna dependent on the frequency.
Baath Lars
Nilsson Emil
Agellis Group Ab
Borden Ladner Gervais Llp
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