HEADING DETERMINATION SYSTEM USING ROTATION WITH GNSS ANTENNAS
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United States of America Patent
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Issued Date -
Sep 27, 2012
app pub date -
Mar 21, 2012
filing date -
Mar 21, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A heading determination system using signals from a global navigation satellite system (GNSS) includes a rotator mechanism for rotating an array of GNSS antennas. The antenna array rotational orientation relative to a structure, such as a vehicle, can be determined by an angular sensor. By rotating the antennas, multipath error can be nullified. Greater GNSS guidance accuracy and heading determination can be achieved by reducing or eliminating multipath error. The system is also adapted for providing output corresponding to the tilt and roll angles for a mobile structure on which it is mounted using two antennas, with the rotation angle being at least 90°.
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