Positioning correction method based on Bluetooth signal single-step robust filtering and approximation discrimination
A bluetooth signal, positioning correction technology, applied in positioning, wireless communication, radio wave measurement system and other directions, can solve the problems of difficult selection of discrimination thresholds, large correction errors, and narrowing the matching range of fingerprint databases.
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[0041] Embodiment 1, a positioning correction method based on Bluetooth signal single-step robustness filtering and approximation discrimination, such as figure 1 shown, including the following steps:
[0042] S1) establish a bluetooth node network, the bluetooth node network includes several bluetooth nodes, and the several bluetooth nodes are respectively located at different positions of the building;
[0043] S2) Perform parameter initialization configuration on the PDR system, and initialize the signal strength S0 of the observable Bluetooth node closest to the mobile terminal;
[0044] S3) clearing the signal strength sequence of each observable bluetooth node;
[0045] S4) The PDR system receives the Bluetooth data of all observable Bluetooth nodes, analyzes the Bluetooth data, obtains the device number and signal strength of each observable Bluetooth node, stores the signal strength and accumulates it to the signal strength of the corresponding observable Bluetooth no...
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