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Positioning signal processing method, device thereof and equipment

A positioning signal processing and positioning signal technology, applied in the field of communication, can solve the problems of unsatisfactory effect, low real-time dynamic positioning and positioning accuracy, and achieve the effect of improving positioning accuracy

Active Publication Date: 2018-10-02
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Although the above-mentioned method of comparing by setting a threshold can filter the positioning signals sent by non-line-of-sight positioning satellites to a certain extent, the effect of filtering the positioning signals in the above-mentioned method is not ideal, resulting in low positioning accuracy of real-time dynamic positioning

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  • Positioning signal processing method, device thereof and equipment
  • Positioning signal processing method, device thereof and equipment
  • Positioning signal processing method, device thereof and equipment

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Embodiment Construction

[0065] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0066] The executor of the embodiments of the present invention may be a positioning receiver, and of course may also be other devices capable of receiving positioning signals and implementing positioning, which is not limited in this application.

[0067] Taking the positioning receiver as an example as an execution subject, the positioning signal processing method provided by the embodiment of the present invention will be described in combination with specif...

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Abstract

An embodiment of the invention provides a positioning signal processing method, a device thereof and equipment. The method comprises the steps of receiving a positioning signal transmitted from each positioning satellite, and acquiring a measured value of the signal-to-noise ratio of each positioning signal; for aiming at each positioning, pre-estimating the signal-to-noise ratio of the positioning signal for obtaining the estimated value of the signal-to-noise ratio of the positioning signal, calculating the difference between the measured value of the signal-to-noise ratio of the positioningsignal and the estimated value of the signal-to-noise ratio of the positioning signal for obtaining a signal-to-noise ratio residual error of the positioning signal; clustering the obtained signal-to-noise ratio residual error for obtaining clustering subsets and the average value of the signal-to-noise ratio residual error included in each clustering subset; selecting the clustering subset withleast average value; and filtering the positioning signal except for a first-kind positioning signal in the received positioning signal, wherein the first-kind positioning signal is the positioning signal which corresponds with the signal-to-noise ratio residual error in the selected clustering subset. The positioning signal processing method, the device thereof and the equipment can improve positioning precision in real-time dynamic positioning.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a positioning signal processing method, device and equipment. Background technique [0002] With the rapid development of GNSS (Global Navigation Satellite System, Global Navigation Satellite System) positioning technology, because RTK (Real Time Kinematic, real-time dynamic positioning) can provide real-time centimeter-level positioning accuracy, it has been widely used. [0003] In the process of real-time dynamic positioning, the positioning signals received by the positioning receiver usually include: positioning signals sent by non-line-of-sight positioning satellites and positioning signals sent by line-of-sight positioning satellites. Among them, the positioning signal sent by the non-line-of-sight positioning satellite is a multi-path signal generated by multi-path reflection and refraction. Since the multi-path signal will cause the positioning receiver t...

Claims

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Application Information

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IPC IPC(8): G01S19/44
CPCG01S19/44
Inventor 邓中亮林开钦尹露胡恩文朱棣刘延旭唐诗浩
Owner BEIJING UNIV OF POSTS & TELECOMM
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