A positioning method and device
A technology for location information and base station positioning, applied in electrical components, wireless communication and other directions, can solve problems such as affecting the accuracy of wireless positioning
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Embodiment 1
[0066] Embodiment 1 of the present invention proposes a positioning method, the process of which is as follows figure 1 shown, including:
[0067] Step 101: According to the positioning of the base station, the signal arrival time of each base station arriving at the terminal and the location information of each base station are obtained;
[0068] Step 102: Calculate the current non-line-of-sight error correction coefficient between corresponding base stations according to the pre-acquired non-line-of-sight error correction coefficient between corresponding base stations;
[0069] Step 103: Calculate the location information of the terminal to correct the base station positioning result according to the arrival time of signals from the base stations to the terminal, the location information of the base stations, and the non-line-of-sight error correction coefficient between the current corresponding base stations.
[0070] In the embodiment of the present invention, the base ...
Embodiment 2
[0072] Embodiment 2 of the present invention proposes a positioning method, the process of which is as follows figure 2 shown, including:
[0073] Step 201: The non-line-of-sight error correction coefficient between corresponding base stations acquired in advance by the terminal.
[0074] Specifically:
[0075] Step 2011: Obtain the location information of the terminal according to the global positioning system GPS.
[0076] When the positioning terminal can receive effective satellite signals, the satellite signal is received by the positioning terminal, the pseudo-range from the positioning terminal to the satellite is measured, and data such as satellite orbit parameters are demodulated. Calculate the longitude, latitude, altitude and other information of the user's geographic location through positioning calculation.
[0077] Step 2012: Receive the signal of the base station and perform wireless positioning of the base station, and obtain the arrival time of the signal...
Embodiment 3
[0131] Embodiment 3 of the present invention proposes a positioning device, the structure of which is as follows image 3 shown, including:
[0132] The first acquisition module 301 is configured to acquire the arrival time of signals from each base station to the terminal and the location information of each base station according to the positioning of the base stations.
[0133] The first calculation module 302 is configured to calculate a non-line-of-sight error correction coefficient between corresponding base stations currently based on a pre-acquired non-line-of-sight error correction coefficient between corresponding base stations.
[0134] Wherein, the first calculation module 302 is specifically used for:
[0135] According to the base station positioning non-line-of-sight error correction coefficient acquired in advance, the current non-line-of-sight error correction coefficient between corresponding base stations is calculated by Kalman filtering.
[0136] The sec...
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