Research On Adaptive Communication Networking Methods Of Shipborne Aircraft Offshore Mission Formation

With the rapid progress of science and technology,the wider combat area and more complex tasks have become the development trend of modern warfare.In order to meet the operational needs,the research of communication technology between combat units in battlefield has become the mainstream.As an important part of modern warfare,shipborne aircraft formation has the characteristics of expanding fields and high mobilit y,and plays an important role in various operations.However,due to the varying and unstable network topology of aircraft formation,the communication between formation will be disturbed by complex terrain and other disturbances when the mission is carried out at low altitude or in complex environment,resulting in the decline or even loss of communication capability.In order to solve the above problems,this paper will study from the following aspects.Firstly,in high altitude and offshore environment,in order to make the whole aircraft formation have more stable communication capability,the evaluation index of invulnerability is proposed,and the formation network structure with reliabilit y and invulnerability is constructed,then the methods adopted are compared and analyzed.Then,in order to deal with the network paralysis which may occur under strong interference,on the basis of the invulnerability network construction method,by constructing multiple network structures that can guarantee communication and being invulnerable in the available frequency bands,it is ensured that when the network structure of the current frequency band is damaged and communication cannot be completed,the network structure of other frequency bands can be immediately activated to achieve the purpose of restoring formation communication.Then,when the mission is carried out in the low-altitude environment of the aircraft formation,the communication of the formation of the aircraft will be affected by the terrain,and the occlusion of the terrain may result in the inability to complete communication between the aircraft.In order to solve this problem and complete the normal communication within the formation,based on the model such as Recommendation ITU-RP.526,the electronic field map is used to predict the attenuation of the electromagnetic field strength of the aircraft,and the attenuation instead of the distance is used as an indicator for the aircraft network.Then,by combining the idea of the shortest path and the minimum spanning tree,the algorithm is adjusted according to the actual situation,and the topology of the network is constructed reasonably.Finally,due to the fact that some units in the formation cannot complete normal communication when the aircraft is in formation,in order to solve this problem,it is necessary to obtain the current network connectivit y status in time.Here,by applying the connectivity domain-based topology analysis method,the current networking status is quickly analyzed to determine the existence of an island or multiple connected domains.Then,in order to restore the communication capabilit y of the entire formation,combined with the actual mission situation,a feasible track adjustment decision-making scheme was developed,and the platform was built by Unity3 D software and the feasibility of the solution was verified.