Method for acquiring azimuth information
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United States of America Patent
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-
Apr 6, 2004
Grant Date -
Dec 5, 2002
app pub date -
Mar 26, 2002
filing date -
Mar 28, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for acquiring azimuth information is provided in which first and second planar patch antennas (11a, 11b) are disposed so that their sky coverage areas partially overlap to form a common area (2), thereby dividing the antenna sky coverage area into a first area (1), third area (3) and common second area 2, and an azimuth is limited utilizing azimuths acquired in the respective areas and the angle between the two antennas. As a result, azimuth limitation information can be effectively acquired even at a location where the sky is severely blocked and satellite information can be adequately acquired only at a small range of sky visibility.
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Cited Art Landscape
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