Positioning error detection method and device

A technology of positioning error and detection method, applied in the service, electrical components, wireless communication and other directions based on location information, can solve the problems of affecting the positioning accuracy, TDOA value error, the positioning accuracy of positioning terminal equipment cannot be accurately adjusted, etc., to improve the accuracy , Improve the effect of positioning accuracy

Inactive Publication Date: 2016-12-21
北斗羲和科技发展(北京)有限公司
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Problems solved by technology

However, due to the non-ideal wireless channel environment in the current cellular network, multipath propagation and non-line-of-sight (NLOS) propagation between the positioning terminal (mobile station) and the base station are ubiquitous.
These will cause errors in the detected TDOA value, thus affecting the positioning accuracy
At present, there is no specific quantification method for the tracking and detection of TDOA value accuracy, which leads to the inability to accurately adjust the positioning accuracy of positioning terminal equipment.

Method used

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  • Positioning error detection method and device
  • Positioning error detection method and device

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Embodiment Construction

[0051] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0052]An embodiment of the present invention provides a positioning error detection method, the method is applied in the positioning technology based on the mobile communication system to measure the TDOA error value. Among them, TDOA (Time Difference of Arrival) is a wireless positioning technology. TDOA positioning is a method of positioning using time difference. It determines the position of the mobile station by detecting the time differenc...

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Abstract

The invention discloses a positioning error detection method and device, and relates to the technical field of computers. The main purpose is to accurately and intuitively reflect the positioning precision of a positioning system by calculating and displaying the precision of a TDOA value, in order to provide data basis for correcting the positioning precision of positioning equipment in the positioning system. The main technical scheme of the invention is as follows: obtaining an actual distance between a test point and a test base station; substituting the actual distance in a preset TDOA positioning algorithm to calculate a TDOA theoretical value between the test point and the test base station; obtaining a TDOA measured value between the test point and the test base station, which is actually measured by the positioning system; and calculating and outputting a difference value of the TDOA theoretical value and the TDOA measured value to obtain a TDOA error value. The positioning error detection method and device disclosed by the invention is mainly used for quantitatively calculating the TDOA error value.

Description

technical field [0001] The invention relates to the field of positioning technology, in particular to a positioning error detection method and device. Background technique [0002] With the development of mobile Internet technology, location-based services (Location Based Servers, LBS) have received extensive attention. According to statistics, more than 80% of the information used by people is related to "location", and people's demand for seamless indoor and outdoor positioning is also increasing. However, the satellite navigation system has disadvantages such as weak signal and susceptibility to interference. It is difficult to work normally in urban canyons, building interiors and other areas with severe occlusion and serious interference, and the positioning accuracy will be seriously reduced or even impossible to locate. Therefore, a large number of new positioning methods or positioning systems have emerged in recent years, such as base station positioning systems, W...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W64/00
CPCH04W4/023H04W64/003H04W64/006
Inventor 姬春旭李赟周俊邓中亮
Owner 北斗羲和科技发展(北京)有限公司
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