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Method and system for wirelessly positioning signal source

A wireless signal and source positioning technology, applied in radio wave measurement systems, wireless communication, positioning and other directions, can solve the problems of inaccurate signal source positioning and inability to guarantee uniqueness, and achieve the effect of improving accuracy

Active Publication Date: 2014-01-08
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional wireless signal source positioning method cannot fully realize three-dimensional space positioning, and usually calculates multiple positions, and the uniqueness cannot be guaranteed, which makes the positioning of the signal source inaccurate

Method used

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  • Method and system for wirelessly positioning signal source
  • Method and system for wirelessly positioning signal source
  • Method and system for wirelessly positioning signal source

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Embodiment Construction

[0044] In one embodiment, such as figure 1 As shown, a method for locating a wireless signal source includes the following steps:

[0045] Step S102, setting at least 5 sensors, the at least 5 sensors are not in the same plane.

[0046] In one embodiment, such as figure 2 As shown, the number of sensors is 7, which are installed on a bracket (not shown in the figure), and the 5 sensors are not on the same plane, where S is the signal source. The seven sensors are respectively the first sensor 10 , the second sensor 20 , the third sensor 30 , the fourth sensor 40 , the fifth sensor 50 , the sixth sensor 60 and the seventh sensor 70 .

[0047] Select the first sensor 10 as the reference sensor and establish a coordinate system, then the first sensor 10 is the origin of the coordinate system, and the coordinates are (0, 0, 0). The coordinates of the second sensor to the seventh sensor are successively (x 2 ,y 2 ,z 2 ),...(x 7 ,y 7 ,z 7 ). Wherein, first sensor 10 and s...

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Abstract

The invention discloses a method for wirelessly positioning a signal source. The method comprises the following steps of: arranging at least five sensors, wherein the at least five sensors are not in the same plane; and according to a difference of time at which the sensors receive signals, positioning the signal source. By adoption of the method for wirelessly positioning the signal source, a three-dimensional space can be positioned, so that a positioning result is more accurate.

Description

【Technical field】 [0001] The invention relates to the technical field of wireless measurement and position positioning, in particular to a method and system for positioning a wireless signal source. 【Background technique】 [0002] Wireless signal source location refers to estimating the spatial position of the signal source at a certain moment based on the signal measured by the sensor. The wireless signal source location method measures the physical parameters and calculates the distance information according to the measured physical parameters, and its accuracy depends to a certain extent on the accuracy of the measured physical parameters. [0003] In the traditional wireless signal source location method, the signal strength, receiving angle, signal time of arrival (TOA) and time difference of arrival (Time Delay of Arrival, TDOA) of the signal received by the sensor are usually selected as the measured physical parameters. Wherein, the positioning method using TDOA as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00H04B17/00G01S5/04
Inventor 李晓云熊国刚吴新宇苏士娟刘营徐扬生
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI