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Interference situation analysis method based on terminal fusion positioning

A technology of fusion positioning and analysis methods, applied in the field of interference situation analysis based on terminal fusion positioning, can solve the problem of not solving the power information of interference sources, and achieve the effect of reducing defects and improving positioning accuracy

Pending Publication Date: 2022-04-19
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research field of situational awareness research is mostly network systems, and there are no systematic research articles in the field of navigation interference, and the interference source location methods are mostly based on observations to locate the location of the interference source, such as angle, arrival time, frequency, etc. These methods only focus on interference The position information of the source, the power information of the interference source is not solved, and the positioning accuracy still has room for improvement

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  • Interference situation analysis method based on terminal fusion positioning
  • Interference situation analysis method based on terminal fusion positioning
  • Interference situation analysis method based on terminal fusion positioning

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Embodiment Construction

[0034] The technical solution of the present invention will be further described below.

[0035] An interference situation analysis method based on terminal fusion positioning, comprising the following steps:

[0036] (1) The terminal receives the carrier-to-noise ratio information before and after the interference, and intelligently locates and determines the location of the interference source;

[0037] Comparing the satellite information received by the terminal before and after interference, the carrier-to-noise ratio of the received signal changes.

[0038] Set the carrier-to-noise ratio change value of the terminal received signal before and after interference to u i ,

[0039]

[0040] in, is the carrier-to-noise ratio after interference, is the carrier-to-noise ratio before interference. can be based on u i The positive or negative value determines the interference type, u i >0 means to suppress interference, u i <0 means deception interference.

[0041] ...

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Abstract

The invention discloses an interference situation analysis method based on terminal fusion positioning, and belongs to the field of satellite navigation. A terminal receives carrier-to-noise ratio information before and after interference to determine the position of an interference source; interference source signal information monitored by the direction-finding monitoring equipment is fused to obtain the accurate position of an interference source; and according to the terminal position and the receiving power, predicting and deducing the power of the interference source by a path loss model to obtain the situation analysis of the interference source. According to the method, terminal interference information and monitoring station receiving interference information can be fused in a complex environment, prediction of the position and power of the interference source is adjusted in real time, and the situation presentation effect of the interference source is more excellent.

Description

technical field [0001] The invention belongs to the field of satellite navigation, in particular to an interference situation analysis method based on terminal fusion positioning. Background technique [0002] In actual production and life applications, the role of global satellite navigation and positioning system (GNSS) is becoming more and more important. In recent years, the development of navigation technology has shown a development trend of multi-system and multi-level integration. And if the navigation signal is interfered or unavailable, it will have a huge impact on people's lives and even cause serious losses. Therefore, it is very necessary and meaningful to study the navigation interference situation. [0003] The navigation interference situation refers to judging whether there is an interference source within the range of the movement area by knowing the surrounding geographic information and each receiving signal, understanding the overall interference situ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/21
CPCG01S19/21
Inventor 苏润佳蔚保国赵军邓志鑫
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP