A Fast Intervention Method for Navigation and Deception for Fuzzy Targets

A fuzzy target and fast technology, applied in satellite radio beacon positioning systems, instruments, measuring devices, etc., can solve the problem of long effective time and achieve the effect of fast effective and shortening the time of deception intervention

Active Publication Date: 2022-08-02
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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AI Technical Summary

Problems solved by technology

This method aims at the problem that the deception takes longer to take effect when the position of the target receiver is not clear in the navigation traction cut-in method, and proposes a faster way for navigation deception to cut into the tracking loop of the target navigation receiver, so as to make up for the existing Insufficiency of the navigation and decoy equipment of the traction cutting method

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  • A Fast Intervention Method for Navigation and Deception for Fuzzy Targets
  • A Fast Intervention Method for Navigation and Deception for Fuzzy Targets
  • A Fast Intervention Method for Navigation and Deception for Fuzzy Targets

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Embodiment Construction

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] A navigation deception fast intervention method for ambiguous targets, the method first calculates the code phase to generate deception jamming signals according to the position of the navigation deception jamming transmitting antenna and the position of the target navigation receiver; then calculates deception according to the ambiguity of the target position The code phase sliding range of the interference; finally, the navigation spoofing interference is generated according to the code phase sliding range, and the spoofing interference signal contains multiple correlation peaks. This improved towed spoofing method can greatly reduce the spoofing intervention time when the location of the spoofed target receiver cannot be accurately known. Specifically include the following steps:

[0028] (1) The deceptive jamming source receives the s...

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Abstract

The invention discloses a fast intervention method for navigation deception aiming at a fuzzy target, and belongs to the technical field of navigation deception. The method firstly calculates the code phase to generate the deception jamming signal according to the position of the navigation deception jamming transmitting antenna and the position of the target navigation receiver; then calculates the code phase sliding range of deception jamming according to the ambiguity of the target position; finally, according to the code phase sliding The range generates navigation spoofing jammers that contain multiple correlation peaks. Aiming at the problem that the spoofing takes effect for a long time in the case where the position of the target receiver is not clear in the navigation traction cut-in method, the present invention proposes a method for the navigation spoofing to cut into the tracking loop of the target navigation receiver more quickly, thereby making up for the existing Insufficiency of navigation decoy based on traction cut-in method.

Description

technical field [0001] The invention relates to a fast intervention method for navigation deception aimed at fuzzy targets, and belongs to the technical field of navigation deception. Background technique [0002] With the increasing application of satellite navigation equipment, the research on satellite navigation deception attack methods has also received increasing attention. For example, navigation deception attack technology has been widely used in the field of civilian UAV control. [0003] There are two commonly used intervention methods for navigation deception and interference: suppression cut-in and traction cut-in. Among them, the traction cut-in method is considered to be a more advanced deception and jamming method than the suppression cut-in method because of its advantages of strong attack concealment and high deception effectiveness. However, the pull-in method requires a long time for deception to take effect when the spoofing party is inaccurate in the po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/21
CPCG01S19/215
Inventor 蔡霖培叶红军董立桥赵胜李玉玲晁磊纪佳琪吕军慰
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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