Deception signal generation method and device

A signal generation and signal technology, applied in the direction of measuring devices, satellite radio beacon positioning systems, instruments, etc., can solve the problem that deceptive signals are easy to be found, and achieve the effect of improving deception
CN111090108BActive Publication Date: 2022-06-24THE HONG KONG POLYTECHNIC UNIV SHENZHEN RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
THE HONG KONG POLYTECHNIC UNIV SHENZHEN RES INST
Publication Date
2022-06-24

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Abstract

This application belongs to the technical field of generation of spoofing signals in navigation satellite systems, and provides a method and device for generating spoofing signals. The method includes: obtaining the original satellite signal received by the target receiver; capturing and tracking the satellite according to the original satellite signal, and obtaining The tracking results and positioning results of each satellite tracking channel; using T k The tracking results and positioning results of the satellites mentioned at the moment, predict T k+1 The real signal of each satellite described at the moment generates the real signal component of attacking the original satellite signal; according to the T in the preset deception trajectory k+1 time position and velocity, generating T k+1 The spoofing signal component of each satellite mentioned at time; at T k+1 generating a spoofing attack signal according to the real signal component and the spoofing signal component at all times, so as to embed the spoofing attack signal into the antenna signal of the target receiver. The embodiment of the present application solves the problem that fraudulent signals are easily found.
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Description

technical field

[0001] The present invention relates to the technical field of spoofing signal generation of navigation satellite systems, in particular to a method and device for generating spoofing signals. Background technique

[0002] Generating navigation satellite spoofing signals is an important prerequisite for researching anti-spoofing technology, and it is of great significance to improve the security and robustness of navigation receivers. Satellite navigation system is a positioning system that uses artificial earth satellites to carry equipment for radio navigation. It has the characteristics of global coverage, real-time navigation, and three-dimensional positioning. It plays an important role in national security, social economy, production and life. For any point on the earth's surface, the three-dimensional coordinates can be determined by using the "connection line" from the satellite to the user's position through the principle of the intersection of three...

Claims

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