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Navigation closed-loop spoofing method and system for target aircraft

An aircraft and target technology, applied in the field of navigation, can solve the problems of low deception accuracy and poor deception effect of the target aircraft, and achieve the effect of improving deception accuracy and good deception effect

Active Publication Date: 2021-04-02
SICHUAN JIUZHOU ELECTRIC GROUP
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Problems solved by technology

[0004] In view of the above analysis, the embodiment of the present invention aims to provide a navigation closed-loop spoofing method and system for a target aircraft to solve the problems that the existing navigation deception methods have low spoofing accuracy and poor spoofing effect on the target aircraft

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  • Navigation closed-loop spoofing method and system for target aircraft
  • Navigation closed-loop spoofing method and system for target aircraft
  • Navigation closed-loop spoofing method and system for target aircraft

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Embodiment Construction

[0052] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

[0053] A specific embodiment of the present invention discloses a navigation closed-loop deception method of a target aircraft, such as figure 1 As shown, the method includes:

[0054] Step S10: Obtain deception parameters, and obtain the deception trajectory of the target aircraft based on the deception parameters; the deception parameters include a start time and an end time;

[0055] Step S20: Predict the flight trajectory of the target aircraft; based on the predicted flight trajectory, calculate the state information of the target aircraft between the start time and the end time;

[005...

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Abstract

The invention relates to a navigation closed-loop spoofing method and system for a target aircraft. The method comprises the following steps: acquiring a spoofing parameter and a spoofing track including starting and ending moments; predicting the navigation track of the aircraft and the state information of the target aircraft between the starting moment and the ending moment; based on an ephemeris book of the navigation satellite, calculating satellite state information and message data between the starting moment and the ending moment; generating a first navigation spoofing signal based onthe aircraft state information, the satellite state information, the message data and the positioning position of the spoofing system between the starting moment and the first moment; wherein the first moment is a moment between the starting moment and the ending moment; calculating spoofing state information between the first moment and the termination moment based on the spoofing track, and generating a second navigation spoofing signal in combination with the aircraft state information, the satellite state information, the message data and the positioning position of the spoofing system between the first moment and the termination moment; and sequentially transmitting the first and second navigation spoofing signals to perform spoofing interference on the aircraft.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to a navigation closed-loop deception method and system for a target aircraft. Background technique [0002] The successful application of satellite navigation systems in various fields has aroused great concern from various countries. To gain absolute advantages in future navigation confrontation, the implementation of navigation jamming has become an important means to reduce the accuracy of strikes. In the military field, countries are stepping up research on how to effectively interfere with GNSS precise positioning measures. By destroying and interfering with the opponent's navigation system, making it unable to work normally, achieving the purpose of destroying or reducing its navigation performance, enabling itself to obtain a high level in modern military operations. In terms of civilian use, the aircraft generally uses the GNSS / INS navigation system for cruising during t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/21
CPCG01S19/215
Inventor 许丹朱弋刘云光和玉竹罗倩文
Owner SICHUAN JIUZHOU ELECTRIC GROUP
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