A satellite navigation deception jamming detection method based on multiple correlation peaks

A technology of spoofing interference and satellite navigation, which is applied in the field of satellite navigation, can solve the problems of single application scenarios, satellite navigation spoofing interference, satellite navigation receiver anti-spoofing interference, etc., and achieve low environmental dependence, good adaptability, good promotion and The effect of applying value

Active Publication Date: 2022-03-04
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

[0007] The purpose of the present invention is to avoid the deficiencies in the above-mentioned background technology and propose a method for detecting satellite navigation spoofing interference based on multiple correlation peaks, which solves the single problem and difficulty in the application scene of satellite navigation receiver anti-spoofing interference, Improves the anti-jamming performance of satellite navigation receivers and the usability and integrity in complex electromagnetic environments

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  • A satellite navigation deception jamming detection method based on multiple correlation peaks
  • A satellite navigation deception jamming detection method based on multiple correlation peaks

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Embodiment Construction

[0024] The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] A satellite navigation fraud interference detection method based on multi-correlation peaks, includes the following steps:

[0026] (1) On the basis of the traditional satellite navigation receiver design architecture, the received space navigation signal is sequentially captured according to the satellite number, after completing the satellite capture threshold setting, according to the capture threshold of the receiver according to the satellite capture threshold Peak record threshold, store the number, size, location of all related peaks;

[0027] (2) Judgment the number of related peaks If there is no or only one, indicating that there is no satellite in the current signal, or the satellite does not deceive interference, if the number of related peaks is more than one, the receiver main branch tracks th...

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Abstract

The invention discloses a satellite navigation deception interference detection method based on multiple correlation peaks, and belongs to the technical field of satellite navigation. Based on the traditional satellite navigation receiver, the method realizes the identification and inspection of the signals existing in the space through the original multi-access correlation peak identification and tracking method, and judges the pseudo-range observations and carrier waves of all signals of the same satellite in space. Based on the verification and judgment of the signal domain and information domain of the multiple access correlation peak, it is determined whether there is a spoofing signal in the space, and the spoofing signal The relevant detection information is output to complete the real-time detection of satellite navigation receiver spoofing interference. The invention has good detection effect, wide application range and good popularization and application value.

Description

Technical field [0001] The present invention relates to the field of satellite navigation technology, in particular, a satellite navigation fraud interference detection method based on multicoly peaks. Background technique [0002] With the development of the global satellite navigation system, the satellite navigation receiver has become a time-to-day time and space based, satellite navigation receivers in communication, navigation, finance, civil aviation, and transportation all areas all play a crucial role. At the same time, deceptive interference for satellite navigation is also delivered. Deception interference mainly for the working characteristics of the satellite navigation receiver and the weak links, with its hidden hidden, and gradually become a natural enemy of the satellite navigation receiver. Any deception interference includes two links of fraud signal generation and fraud signals. Therefore, deceptive interference is divided into generated spoof and forward spoo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/21G01S19/22G01S19/37
CPCG01S19/215G01S19/22G01S19/37
Inventor 段召亮
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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