Source-locating method

A source location and source technology, applied in the field of communication, can solve the problems of large error, poor stability and high computational complexity, and achieve the effects of saving system cost, improving system stability and positioning accuracy, and reducing computational complexity.

Inactive Publication Date: 2012-06-27
TIANJIN ZHONGXING SOFTWARE
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  • Abstract
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  • Claims
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Problems solved by technology

[0010] The embodiment of the present invention provides a source location method and device to solve the problems of high computational complexity, poor stability, large error and high system cost in the prior art

Method used

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Embodiment Construction

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] Such as figure 1 As shown, it is a flow chart of the source location method in the embodiment of the present invention, and its specific processing flow is as follows:

[0022] Step 11, obtaining the received signal power value when each receiving antenna receives the signal sent by the signal source;

[0023] The receiving antenna proposed in the embodiment of the present invention may be a directional antenna, and may also be an omnidirectional antenna.

[0024] Taking the number of receiving antennas as 5 as an example, figure 2 It is a sc...

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Abstract

The invention discloses a source-locating method and a source-locating device. The method includes the following steps: the received signal power value of the signal transmitted by a receiving source of each receiving antenna is acquired; aimed at each receiving antenna, the horizontal coordinates of the source are determined as the probability value of the horizontal coordinates of the receiving antenna respectively according to each received signal power value; and according to each determined probability value, the horizontal coordinates of the source are determined. According to the adoption of the technical scheme of the invention, the problems of the prior art, i.e. high caculation complexity, poor stability, great error and high system cost can be solved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for locating a signal source. Background technique [0002] The free-flow system is a comprehensive intelligent transportation solution that combines modern technologies such as data communication technology, automatic control technology, computer network technology, and information release technology. [0003] The free-flow system can carry out legality authentication and charge processing on the vehicle. In the prior art, a tag is set in the vehicle, and the license plate number information of the vehicle is stored in the tag. When the vehicle passes by the reader in the free-flow system, the reader can obtain At the same time, the image acquisition device in the free flow system captures the license plate image of the vehicle, and matches the captured license plate image with the license plate number information obtained by the reader. If the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/06
Inventor 张恺
Owner TIANJIN ZHONGXING SOFTWARE
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