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Three-dimensional location method based on wireless communication base station

A technology of three-dimensional positioning and wireless communication, which is applied in the field of communication, and can solve problems such as sharp fluctuations in signal strength, easy interference of WiFi signal working frequency bands, and inability to accurately synchronize

Inactive Publication Date: 2017-09-26
GUANGXI UNIV +1
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Problems solved by technology

Although GPS positioning has high precision, it has two defects: one is that indoor positioning cannot be solved, and the other is that it is expensive; the coverage of WiFi positioning is limited, and the working frequency band of WiFi signals is susceptible to interference
However, the positioning method of the existing communication base station also has the following problems, the timing of the base station and the timing of the mobile phone terminal cannot be accurately synchronized, which affects the positioning accuracy; the impact of non-line-of-sight propagation (NLOS) on the positioning accuracy; The problem that the received signal strength fluctuates sharply due to noise interference and continues to affect positioning

Method used

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  • Three-dimensional location method based on wireless communication base station
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  • Three-dimensional location method based on wireless communication base station

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Embodiment Construction

[0086] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0087] Such as figure 1 As shown, the present invention designs a three-dimensional positioning method based on a wireless communication base station. Afterwards, the present invention uses the measured data to conduct experiments on the positioning method. Experimental tests show that this method can achieve better positioning accuracy, and has a better suppression effect on NLOS, synchronization error and noise interference.

[0088] The three-dimensional positioning method based on the wireless communication base station described in the present invention is based on the TDOA ranging principle and uses as few base stations as possible to complete the positioning of the terminal equipment. The designed algorithm has the characteristics of fast convergence speed and robustn...

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Abstract

The present invention discloses a three-dimensional location method based on a wireless communication base station. A distance is calculated according to time difference of signals from a mobile phone terminal to two different base stations (corresponding TDOA data is obtained), a location equation set is solved. The three-dimensional location method based on the wireless communication base station employs actual measurement data to perform experiment of the location method. The experiment test shows that the method can realize good location precision and has good inhibition effect on NLOS, synchronization errors and noise interference.

Description

technical field [0001] The invention relates to the communication field, in particular to a three-dimensional positioning method based on a wireless communication base station. Background technique [0002] Due to the vigorous development of wireless communication networks and mobile Internet, providing services based on location information (abbreviated as LBS) has become one of the businesses with the most market potential. At present, the means to achieve precise positioning include GPS positioning, WiFi positioning, wireless communication base station positioning, etc. Although GPS positioning has high accuracy, it has two defects: one is that it cannot solve indoor positioning, and the other is that it is expensive; the coverage of WiFi positioning is limited, and the working frequency band of WiFi signals is susceptible to interference. Therefore, using the operator-based wireless communication base station for positioning becomes the choice of the present invention, ...

Claims

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Application Information

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IPC IPC(8): H04W64/00G01S5/06
Inventor 覃团发董鹏琳胡永乐沈湘平陈俊江
Owner GUANGXI UNIV
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