Global seamless locating method based on GPS, fourth-generation mobile communication network and WiFi
A mobile communication network and the fourth technology, applied in the field of global seamless positioning, can solve the problems of inability to locate and the low accuracy of GPSONE indoor positioning, and achieve the effect of solving the low accuracy
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[0016] Example 1
[0017] The present invention is a global seamless positioning method based on the satellite positioning system GPS, China Mobile's fourth-generation mobile communication network TD-LTE (OFDM positioning) and WiFi wireless network, including the following steps:
[0018] S1: Receive mixed signals from GPS and the fourth-generation mobile communication network base station, and detect GPS carrier-to-noise ratio. If the GPS carrier-to-noise ratio is greater than the preset threshold T1, enter the GPS positioning program to obtain the positioning result and report the target location; otherwise Go to step S2;
[0019] S2: If the GPS carrier-to-noise ratio is lower than the preset threshold T1, but greater than the preset threshold T2, enter the AGPS positioning program to obtain the positioning result L1; at the same time, detect the fourth-generation mobile communication network base station signal carrier-to-noise ratio, if its carrier If the signal-to-noise ratio i...
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