MULTI-DIMENSIONAL IMAGING METHOD AND APPARATUS
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United States of America Patent
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N/A
Issued Date -
May 17, 2007
app pub date -
Nov 6, 2006
filing date -
Nov 4, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
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.
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