Autonomous navigation unmanned aerial vehicle GPS deception detection and defense method

A technology for deception detection and autonomous navigation, applied in radio wave measurement systems, measurement devices, satellite radio beacon positioning systems, etc., can solve problems such as spoofing attacks

Pending Publication Date: 2019-03-08
BEIJING UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of being vulnerable to GPS spoofing attacks in the existing autonomous navigation UAV positioning technology, the technical solution adopted in the present invention is a GPS spoofing detection and defense method for autonomous navigation UAVs, using signal-to-noise ratio combined with Kalman filter technology Carry out the detection of GPS spoofing attacks, and carry out the defense of GPS spoofing attacks through inertial navigation technology. This method not only supports the detection and defense of forwarding GPS spoofing attacks, but also supports the detection and defense of generative GPS spoofing attacks.

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  • Autonomous navigation unmanned aerial vehicle GPS deception detection and defense method
  • Autonomous navigation unmanned aerial vehicle GPS deception detection and defense method
  • Autonomous navigation unmanned aerial vehicle GPS deception detection and defense method

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0036] The GPS spoofing attack detection and defense method described in the present invention is illustrated as follows figure 1 As shown, the specific steps are as follows:

[0037] Step 1: Carry out GPS spoofing detection based on SNR variation.

[0038] (1) Calculate the SNR change threshold and the number of suspicious satellites threshold for GPS spoofing detection based on SNR change according to the environment.

[0039] (2) Taking the output of the GPS sensor as an input, the attack detection signal G1 is obtained through the GPS spoofing attack detection algorithm based on the signal-to-noise ratio.

[0040] Step 2: Carry out detection based on Kalman filter analysis.

[0041] (1) Calculate the position error threshold used for detection based on Kalman filter analysis according to the environment.

[0042] (2) Judging the attack ...

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Abstract

The invention discloses an autonomous navigation unmanned aerial vehicle GPS (global positioning system) deception detection and defense method, belongs to the technical field of autonomous navigationunmanned aerial vehicle positioning safety, and particularly relates to a GPS deception attack detection and defense technology. GPS deception detection is mainly divided into two parts, namely a signal-to-noise ratio technology and a kalman filtering technology are adopted, an inertia navigation technology is adopted in GPS deception attack defense, simulation experiments show that the method supports detection and defense of GPS generation type attacks and forwarding attacks, can provide accurate positioning information for an autonomous navigation unmanned aerial vehicle, and can make flying safer.

Description

technical field [0001] The invention belongs to the technical field of positioning safety of autonomous navigation drones, and in particular relates to GPS spoofing attack detection and defense technologies. The invention mainly uses signal-to-noise ratio technology and Kalman filter technology to detect GPS spoofing attacks, and uses inertial navigation technology to defend against GPS spoofing attacks, and supports the detection and defense of most GPS generation attacks and forwarding attacks. Drones provide accurate positioning information. Background technique [0002] In recent years, autonomous navigation drones have gradually entered people's daily lives due to their small size, low cost, and convenient deployment, and are subtly affecting people's production and lifestyle. At present, the flight accuracy of most drones on the market depends on the accuracy of positioning information, and the positioning information is mainly provided by GPS satellites. Therefore, w...

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Application Information

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IPC IPC(8): G01S19/21
CPCG01S19/215
Inventor林莉覃耀辉王凯崙王嘉轩林伊童
OwnerBEIJING UNIV OF TECH