发明名称 Method and a system for positioning of an electronic device, and an electronic device
摘要 A method is provided for determining the position of an electronic device by receiving a code modulated signal transmitted by satellites, and position information of the satellites and time data, and by generating local time data. In the method, delta range measurements are taken for at least four different satellites. For each of said at least four satellites, the velocity of the satellite is determined in relation to the positioning receiver. Furthermore, in the method, the delta range measurement results are replaced in an algorithm applying said delta range measurements and velocities to generate reference data for determining the local time data frequency error and the position. The local time data frequency error and the position are determined by searching for the minimum value of said reference data. A system and an electronic device applying the method are also provided.
申请公布号 US7069021(B2) 申请公布日期 2006.06.27
申请号 US20030373437 申请日期 2003.02.25
申请人 NOKIA CORPORATION 发明人 LEHTINEN ANTTI
分类号 G01S19/24;H04Q7/20;G01S1/00;G01S5/14;G01S19/25;G01S19/29;G01S19/42;G01S19/52 主分类号 G01S19/24
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