Unmanned aerial vehicle elastic strategy design method and system based on heterogeneous game method

Abstract

The invention discloses an unmanned aerial vehicle elastic strategy design method and system based on a heterogeneous game method. The method comprises the steps of: building a relation between an unmanned aerial vehicle control signal instruction acceptance probability and an attack and defense transmission signal under the impact of an attack; building an unmanned aerial vehicle system signal transmission and attacker interference game model in a dynamic environment; dividing an information physical system into a network layer and a physical layer, respectively carrying out modeling analysis on the network layer and the physical layer, and modeling a coupling relationship of the two layers into a heterogeneous game model; modelling the power transmission strategy problem of a transmitter and an attacker of the network layer of the information physical system as a Markov game model; and establishing an unmanned aerial vehicle state equation under the influence of network attack induced packet loss and interference, constructing a control performance index function, and optimizing an unmanned aerial vehicle controller to enable an unmanned aerial vehicle to meet a joint elastic defense strategy of certain operation performance. The defect that the defense of an unmanned aerial vehicle is not timely and the effect is not ideal is overcome.

Description

technical field [0001] The invention belongs to the field of UAV elastic strategy optimization, and relates to a UAV elastic strategy design method and system based on a heterogeneous game method. Background technique [0002] Control is the means for drones to complete tasks, and drones cannot do without control. Based on the rapid development of network technology, relying on the network to formulate a multi-UAV cooperative combat plan, the introduction of the network is the threat of attack on the UAV. Among the many attack methods, denial of service attack has attracted much attention due to its characteristics of easy implementation and strong destructiveness. Most of the existing system security control methods adopt passive defense technology, that is, after the system is attacked, an elastic policy mechanism is designed to compensate for the attack and damage the system performance. Therefore, designing an active defense mechanism is a feasible solution to prevent ...

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Problems solved by technology

[0003] In addition, the UAV system has a complex structure and is affected by various external factors during operation. Modeling the system as a disturbance is a common processing method.

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