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제목 GPS Overview (F008) → 2001.08.09 13:47:14
등록자 남일영 이메일 iynam@iwizvill.com 검색 836건
사이트주소 http://www.colorado.edu/geography/gcraft/notes/gps/gps_f.html
검색단어 GPS
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설명#1 콜로라도 대학교에서 제공하는 GPS 개요
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링크      
GPS is funded by and controlled by the U. S. Department of Defense (DOD). While there are many thousands of civil users of GPS world-wide, the system was designed for and is operated by the U. S. military. GPS provides specially coded satellite signals that can be processed in a GPS receiver, enabling the receiver to compute position, velocity and time. Four GPS satellite signals are used to compute positions in three dimensions and the time offset in the receiver clock. Position and Time from Four GPS Satellite Signals