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Title:
SATELLITE INITIAL ACQUIRING METHOD
Document Type and Number:
Japanese Patent JPS6446670
Kind Code:
A
Abstract:

PURPOSE: To expand an acquisition range, to widen a search angle interval, and to shorten the time required for initial acquisition by lowering an alarm level set value at the time of the initial acquisition.

CONSTITUTION: A scan is made from a scan start position 3 along a scan track 4 and a satellite is acquired at a satellite acquisition position 5. In this case, the alarm level set value at the time of the initial acquisition is set low, and the acquisition area 2 is set to θ1 larger than before. The interval of the scan track 4 is therefore widened and the time required to acquire the satellite is shortened.


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Inventors:
MORI HIROMICHI
Application Number:
JP20394587A
Publication Date:
February 21, 1989
Filing Date:
August 17, 1987
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G01S3/44; (IPC1-7): G01S3/44



 
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