| 摘要 |
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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