Indoor positioning method based on channel response frequency domain and airspace combined processing
A technology of channel response and joint processing, applied in the service based on location information, service based on specific environment, wireless communication, etc., can solve the problems of being in the experimental stage, poor positioning accuracy, unclear relationship between fingerprint and position function, etc. The function relationship is simple and clear, the effect of increasing spatial resolution and reducing offline workload
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[0070] see figure 1 , the present invention provides an indoor positioning method based on joint processing of channel response frequency domain and air domain, including an offline stage and an online positioning stage. The terminal moves at a constant speed at each reference point, collects channel information in two directions perpendicular to each other, preprocesses the collected data, extracts corresponding fingerprint features, and uses the relationship between fingerprints in the perpendicular direction to establish an offline database; The fingerprint data of each point contains position information and feature information; in the online positioning stage, the online fingerprint information is extracted by collecting the signal data of the unknown mobile terminal, and the fingerprint information of the terminal to be tested is matched with the fingerprint in the offline database, and then according to the similarity The criterion calculates the location of the termina...
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