Indoor moving target three-dimensional positioning method, medium, computer equipment and application

Abstract

The invention belongs to the technical field of wireless communication, and discloses an indoor moving target three-dimensional positioning method, a medium, computer equipment and application, and the method comprises the steps: firstly, sensing spatial channel characteristics through a WiFi device, and collecting CSI data containing position information; then, a CSI tensor is constructed by using the collected CSI data; performing CP decomposition on the constructed CSI tensor to obtain a characteristic quantity depicting a three-dimensional subspace; a three-dimensional space feature data set is constructed, and an RNN neural network is introduced to learn the space feature data set; and finally, realizing three-dimensional positioning of the indoor moving target by using the trained RNN neural network. According to the indoor target three-dimensional positioning method based on WiFi perception, only one set of WiFi receiving and transmitting equipment is utilized, the installation cost is low, privacy concerns do not exist, dead angles do not exist, personnel do not need to wear any special equipment or sensor, and a passive positioning mode is achieved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a three-dimensional positioning method, medium, computer equipment and application of an indoor moving target. Background technique [0002] At present, with the rapid development of various wireless communication services, location-based services and a series of related wireless applications have gradually received extensive attention. Positioning service, also known as "Location Based Service" (Location Based Service, LBS), usually refers to the use of satellite communication network, mobile communication network, wireless local area network, wireless sensor network system to obtain the geographic coordinates of mobile terminals, so as to achieve a series of location-related services. The earliest positioning service appeared in the 1970s. In order to provide all-weather real-time positioning and navigation services to its armed forces, the U.S. mili...

AI Technical Summary

Problems solved by technology

The invention is a three-dimensional positioning method for indoor moving targets based on WiFi perception, CSI tensor construction and decomposition, and RNN model fusion, to solve the problems of lack of effective noise suppression strategies and low positioning efficiency in current indoor positioning technology, thereby improving indoor mobile positioning. Target 3D positioning accuracy, efficiency, robustness and reliability

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