A Precise Positioning Method Based on Emergency Cellular Communication Network
A cellular communication network and precise positioning technology, applied in the field of precise positioning based on the emergency cellular communication network, can solve the problems of inability to achieve positioning in places without GPS signals, hindering rescue operations, and backward rescue communication and positioning equipment
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[0066] The present invention will be further described below through specific examples.
[0067] The specific steps of the positioning method for the mobile station in this embodiment are as follows:
[0068] 1) The positioning server receives the mobile station information forwarded by the M base stations, and the positioning server obtains the geographic location information of the M base stations; wherein M is greater than or equal to 4;
[0069] Let the location information of the i-th base station be (x i ,y i ), where i∈[1,M];
[0070] 2) The positioning server extracts the receiving time of all M base stations receiving the mobile station information, and calculates the information arrival time difference t between the jth base station and the first base station j,1 , where 2≤j≤M;
[0071] Using the propagation speed c of electromagnetic waves in the atmosphere, the distance difference r between the jth base station and the first base station can be calculated j,1 ...
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