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Communication base station-based three-dimensional positioning tracking and trajectory calculation method

A technology of three-dimensional positioning and communication base station, which is applied in positioning, wireless communication, measuring devices, etc. It can solve the problems of not considering non-line-of-sight propagation, not being able to calculate the trajectory of the terminal, and the impact of the results is not the same.

Active Publication Date: 2017-07-21
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the positioning results in the prior art are estimated values, and the impact on the results due to different distances from the base station to the terminal is not considered; the impact of non-line-of-sight propagation in the propagation environment is not considered, resulting in positioning results Inaccurate, unable to calculate the technical problem of the terminal running trajectory

Method used

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  • Communication base station-based three-dimensional positioning tracking and trajectory calculation method
  • Communication base station-based three-dimensional positioning tracking and trajectory calculation method
  • Communication base station-based three-dimensional positioning tracking and trajectory calculation method

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Embodiment 1

[0078] A tracking and trajectory method based on three-dimensional positioning of communication base stations. The tracking and trajectory method based on three-dimensional positioning of communication base stations includes three-dimensional indoor rough positioning according to CHAN algorithm, obtaining TOA data collected by base stations, preprocessing TOA data, and eliminating multipath according to LS algorithm error, the tracking and trajectory method based on the three-dimensional positioning of the communication base station also includes:

[0079] (1) Establish a base station weighted voting evaluation model, establish a metric value split model, split the real time delay model, noise time delay model and interference time delay model according to the measurement value split model, and establish a machine learning metric fine-tuning model , to establish an accurate multi-point 3D positioning model;

[0080] The establishment of the base station weighted voting evaluat...

Embodiment 2

[0139]On the basis of Embodiment 1, this embodiment further optimizes the tracking and trajectory method of the three-dimensional positioning of the communication base station. After establishing the connection trust model between the base stations and the virtual base station model, the signal-to-interference ratio (SINR) is mapped through the positioning accuracy of the terminal coordinates. regional differences. Use matlab simulation to get the regional differences of the three-dimensional signal-to-interference ratio SINR of the data set. Through the trust model between base stations, the cooperative work between base stations is an important link to ensure the stability of the connection. When the base stations are offline, the relative positions and distances of each base station are located, and the distance and data reliability model is established. A certain distance is used as the boundary. Establish a routing table to represent the trust degree between base stations...

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Abstract

The present invention relates to a communication base station-based three-dimensional positioning tracking and trajectory calculation method. According to the prior art, a positioning result is an estimated value, the positioning result is not accurate, and as a result, the operation trajectory of a terminal cannot be calculated, while, with the method of the invention adopted, the above situation in the prior art can be avoided. According to the communication base station-based three-dimensional positioning tracking and trajectory calculation method, three-dimensional indoor coarse positioning is performed according to a CHAN algorithm, so that base station acquisition TOA data are obtained; the TOA data are preprocessed; a base station weighted voting value estimation model is established; a measurement value split model is established, so that a real time delay model, a noise time delay model and an interference time delay model can be obtained through splitting; a machine learning measurement fine-tuning model, and a precise multi-point three-dimensional positioning model are established; a precise three-dimensional positioning optimization model is established; and the precise three-dimensional positioning optimization model is applied to the precise multi-point three-dimensional positioning model, and an improved terminal movement trajectory positioning model can be built, so that the trajectory positioning of a moving terminal is completed. With the method provided by the technical schemes of the invention adopted, problems in the prior art can be solved. The communication base station-based three-dimensional positioning tracking and trajectory calculation method can be applied to the tracking and trajectory calculation of indoor three-dimensional positioning.

Description

technical field [0001] The invention relates to the field of indoor positioning, in particular to a tracking and trajectory method based on three-dimensional positioning of a communication base station. Background technique [0002] From traditional GPS navigation to Dianping, WeChat and other consumer service social software based on geographical location, the development of positioning technology is becoming more and more mature. Research on positioning based on communication base stations has attracted a lot of attention in both scientific research and industry. On the one hand, the positioning problem is related to many fields such as statistical signal and processing, optimal estimation theory, optimization algorithm, etc. Many mathematical tools such as data fitting, least square estimation, semi-positive definite programming, manifold learning, etc. applied to solve the above problems. On the other hand, the industry is also very concerned about how to complete the ...

Claims

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Application Information

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IPC IPC(8): G01S5/12H04W64/00
CPCG01S5/12H04W64/00
Inventor 瞿中陈宇翔吴戈
Owner CHONGQING UNIV OF POSTS & TELECOMM
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