Integrated positioning system and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 16, 2004
Grant Date -
N/A
app pub date -
Oct 11, 2000
filing date -
Oct 12, 1999
priority date (Note) -
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Abstract
A system for utilizing two positioning and navigation systems in a single unit which may be used within sight of earth-orbiting GNSS satellites as well as behind a line-of-sight barrier obstructing the earth-orbiting satellites. A mobile receiver/processor includes a GNSS receiver which receives and develops navigation and position information from the signals transmitted by the system of earth-orbiting satellites. The receiver/processor also includes a TM-UWB receiver capable of receiving transmissions from a group of at least three ground-based beacons stationed at precise known locations, each of which independently transmits a distinct TM-UWB signal, including location information. The receiver/processor is provided with programmable memory which holds coordinates of the space where the receiver/processor will be moveable which is behind the line-of-sight barrier. A first antenna exterior to a line-of-sight barrier behind which the receiver/processor will be operated collects signals from the earth-orbiting satellites and passes the collected signals through the line-of-sight barrier to a second antenna which rebroadcasts the collected signals to the receiver/processor when it is in line-of-sight of the second antenna.
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