A UAV security control method under expected trajectory signal attack

Abstract

The invention relates to a UAV security control method under the attack of the expected trajectory signal, aiming at the problem of the UAV security control problem that the expected trajectory signal is attacked by false information injection during the transmission process, firstly, for the false information injected into the expected trajectory signal The information is classified and modeled according to its characteristics; secondly, by analyzing the transfer mechanism of the expected trajectory signal to the control channel of the UAV, the UAV control system model under the influence of false information injection attack is established; thirdly, according to the effect on the UAV Control the model characteristics of false information in the channel, design attack observers respectively, estimate the false information, and solve the gain of the observer; finally, design the composite expected trajectory signal according to the output value of the attack observer. The invention has the characteristics of strong anti-attack ability and high reliability, and is suitable for the security control under the situation that the expected trajectory signal of the UAV is attacked.

Description

technical field [0001] The invention relates to a UAV safety control method under the attack of the expected trajectory signal, which can realize the attack modeling analysis and estimation compensation according to the characteristics of the false information attack injected into the expected trajectory signal, and can be used in the situation where the expected trajectory signal is attacked Under the safe control of the drone. Background technique [0002] In recent years, with the continuous development and mutual integration of information, control, communication and other fields, it has driven the rapid development of the drone industry, making drones play a huge role in both military and civilian fields. However, due to the open communication mechanism of the UAV system, the UAV is vulnerable to malicious attacks during the process of transmitting information through the communication link. In 2011, Iran successfully captured the U.S. RQ-170 by jamming the GPS signal ...

AI Technical Summary

Problems solved by technology

The patent designs a learning observer to estimate and compensate the attack of the actuator, but on the one hand, the patent does not analyze the transfer mechanism of the attack mapping to the actuator and model the impact of the attack; on the other hand, the estimation accuracy of the learning observer depends on the learning time interval

To sum up, the security problem of UAV after the communication link is attacked needs to be solved urgently

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