Gps receiving apparatus

Details Gps receiving apparatus Gps receiving apparatus

G - Physics

01

S

G01S 5/14 (2006.01) G01S 1/00 (2006.01)

Patent

CA 2377120

The present invention relates a GPS receiving apparatus having improved measurement precision as the result of selectively fetching only some of the signals transmitted by a number of satellites. The GPS receiving apparatus includes an antenna for receiving the electric waves from the satellites, an elevation-angle-computing unit for finding an elevation angle of each satellite on the basis of the electric wave received from the satellite, and a comparison unit for comparing the elevation angle with a predetermined reference elevation angle. Only electric waves transmitted by those satellites having an elevation angle greater than a predetermined reference elevation angle are selectively used for computing a position.

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