Satellite navigation regenerative deception generation method based on correlation peak dynamic dragging

A technology of satellite navigation and generation method, which is applied in the field of satellite navigation to achieve the effects of low transmission power, low environmental dependence, and simple engineering implementation.

Inactive Publication Date: 2021-06-25
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

In practical engineering applications, traditional regenerative spoofing is effective for ordinary satellite navigation receivers by simulating space satellites. There are certain limitations:

Method used

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  • Satellite navigation regenerative deception generation method based on correlation peak dynamic dragging
  • Satellite navigation regenerative deception generation method based on correlation peak dynamic dragging

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Embodiment Construction

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

[0025] A method for generating satellite navigation regenerative deception based on dynamic dragging of correlation peaks, comprising the following steps:

[0026] (1) On the basis of traditional spoofing interference generation methods, the function of receiving space satellite navigation signals is added to obtain satellite signal information in the spoofing interference area, including the visible satellite number, spatial position, signal power, and signal Doppler in the spoofing area Observation parameters of space visible satellites such as pseudo-code phase and message parameters;

[0027] (2) By receiving the space navigation satellites in the deception area, extract the signal feature monitoring two-dimensional matrix of the real space navigation satellites in the current deceitful airspace, coverin...

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Abstract

The invention provides a satellite navigation regenerative deception generation method based on correlation peak dynamic dragging, and belongs to the field of satellite navigation. According to the method, on the basis of traditional regenerative deception simulation, complete coherence of deception interference with real signals in technical indexes such as signal power, signal Doppler, arrival time delay and the like is achieved by receiving space real signals, a traditional anti-deception method cannot recognize the technical indexes, and the deception success rate is high; in the whole regenerative deception generation process, a navigation receiver is switched to a deception signal in a non-inductive mode through a correlation peak dragging mode from a space real signal, the deception belongs to dexterous deception, and the deception efficiency is high; the deception method does not need additional environment support and external auxiliary information, and deception is realized only in a smart control mode on deception interference generation; and the method is low in transmitting power, high in concealment, simple in engineering implementation and wide in application range, and has good popularization and application values.

Description

technical field [0001] The invention relates to the field of satellite navigation, in particular to a regenerative deception generation method for satellite navigation based on correlation peak dynamic dragging. Background technique [0002] With the development of the global satellite navigation system, the satellite navigation receiver has become the space-time reference of people's daily life. The satellite navigation receiver plays a vital role in various fields of communication, navigation, finance, civil aviation and transportation. At the same time, spoofing jamming against satellite navigation also emerges as the times require. Spoofing jamming is mainly aimed at the working characteristics and design weaknesses of satellite navigation receivers. It has gradually become the natural enemy of satellite navigation receivers because of its good concealment and high interference efficiency. Any spoofing interference includes two links of spoofing signal generation and sp...

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Application Information

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