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Method, device and system for target positioning

A positioning system, target positioning technology, applied in the direction of electrical components, wireless communication, etc.

Active Publication Date: 2014-04-02
南通金慧网络科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, this positioning system determines the position of the target device based on a single measurement data (for example, a single vector formed by arranging the measurement data at the detection nodes in sequence), and only uses the sparsity of a single vector, so the accuracy of the target positioning system There is still room for improvement

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  • Method, device and system for target positioning
  • Method, device and system for target positioning

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Embodiment Construction

[0076] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0077] First, combine figure 1 The structure of the positioning system according to the embodiment of the present invention will be described.

[0078] In the embodiment of the present invention, the target device can also be called user equipment (UE, User Equipment), mobile terminal (Mobile Terminal) or mobile user equipment, etc., and can communicate with a radio access network (for example, RAN, Radio Access Network) or multiple core networks for ...

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Abstract

The invention discloses a method, a device and a system for target positioning. The method comprises the following steps: cluster nodes of a positioning system obtain measurement data corresponding to at least one target device, wherein a positioning vector reflecting the position of the at least one target device in the positioning system has sparsity; decorrelation processing is performed on the measurement data; reported data is sent to the processing center of the positioning system, so that the processing center determines the position of the at least one target device in the positioning system according to the reported data from the at least two cluster nodes and the low rank characteristic of positioning matrixes, wherein the reported data comprises the measurement data subjected to decorrelation processing, and the positioning matrixes are column vector matrixes of which the column number is the same as the quantity of the cluster nodes; the column vectors of the positioning matrixes are positioning vectors; and the independent sparsity of the single positioning vector is converted into low rank characteristic of the positioning matrixes comprising the positioning vectors of which the column number is the same as the quantity of the cluster nodes, so that the accurate target positioning is realized.

Description

technical field [0001] The present invention relates to the communication field, and more specifically, to a method, device and system for target positioning. Background technique [0002] At present, a positioning system based on a wireless network is known. Multiple detection nodes in the positioning system simultaneously detect the signal sent by the object to be measured (target device), and can obtain the characteristic information of the signal (for example, signal strength ( RSS, Received Signal Strength), time of arrival (TOA, Time Of Arrival), angle of arrival (AOA, Angle Of Arrival, etc.), and report this feature information as measurement data to an information fusion center (FC, Fusion Center) or Centralized control of the base station (BS, Base Station), so that the position of the measured object can be calculated according to the characteristic information from each detection node, thereby completing the joint target positioning of multiple detection nodes. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00
Inventor 王悦
Owner 南通金慧网络科技有限公司
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