A positioning method, device and electronic equipment

Abstract

Embodiments of the present invention provide a positioning method, device, and electronic equipment to obtain the phase information in the target channel state information CSI to be subjected to phase feature extraction as the target CSI phase information; for each communication data packet: based on different antennas The first phase correlation, and the second phase correlation between different subcarriers of the same antenna, obtain the adjacent square matrix; input the target CSI phase information and the adjacent square matrix into the feature extraction sub-model in the pre-trained neural network model, and obtain The target phase feature; and input the target phase feature into the multi-layer perceptron in the neural network model to obtain the confidence that the device to be positioned is located at each preset reference point; wherein, the feature extraction sub-model includes: graph convolution layer and convolution layer ; Based on the confidence, the location information of the device to be located is obtained. In the embodiment of the present invention, the accuracy of the extracted phase feature is higher. Furthermore, the finally obtained location information of the device to be positioned is also more accurate.

Description

technical field [0001] The present invention relates to the technical field of positioning, in particular to a positioning method, device and electronic equipment. Background technique [0002] In the process of wireless communication, for a single communication data packet, the transmitting end sends multiple subcarriers through the antenna, and transmits the communication data packet to the receiving end. Bag. [0003] CSI (Channel State Information, channel state information) is a channel attribute of a communication link in a wireless communication process, which describes a signal attenuation factor on a transmission path. The method of orthogonal frequency division multiplexing may be used to extract CSI from multiple received sub-carriers. The extracted CSI includes: phase information and amplitude information of multiple subcarriers. During wireless positioning, feature extraction can be performed on the phase information of multiple subcarriers to obtain phase fe...

AI Technical Summary

Problems solved by technology

[0005] The above method only considers the time correlation between adjacent communication data packets, so the accuracy of phase feature extraction is low, which in turn makes the positioning accuracy low

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