Sensor network indoor fingerprint positioning method based on matrix completion
A technology of fingerprint positioning and matrix completion, applied in the direction of location information-based services, nan, electrical components, etc., can solve the problems of heavy workload and lower positioning accuracy
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[0051] The core design idea of the implementation scheme of the sensor network indoor fingerprint positioning method based on matrix completion is: apply the matrix completion theory to indoor positioning based on wireless signal fingerprints, and only need to sample part of the signal fingerprints by using the low rank of the fingerprint matrix The complete fingerprint database can be restored by using the matrix completion theory; after the fingerprint database is constructed, the classic KNN algorithm is used for target positioning in the online stage. In the process of fingerprint matrix completion, in order to effectively eliminate the outlier noise and Gaussian noise contained in the signal fingerprint, the L1 norm regularization term and the F norm regularization term are respectively introduced, and the fingerprint data recovery problem is modeled as norm regularization Matrix completion problem and its solution by the method of alternating direction multipliers. Thi...
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