Flight Control Of Unmanned Helicopter Ship Landing Operation

Recovering unmanned helicopter aboard non-aviation ships in high sea states has long plagued Naval air operation. The problem is even more acute when the weather is tough and the ship is moving unpredictably.Based on the research of the domestic and abroad, the paper mainly solves the following problems.Firstly, the model of the airwake and shipmotion during the unmanned helicopter aboard non-aviation ships are introduced; Then the dynamic model of the unmanned helicopter is established . Based on the model, properties of the open loop are analyzed indetail, and the problem of coupling is discussed.Secondly, the trajectory tracking control of the unmanned helicopter is developed. Based on the the dynamic inversion, the attitude control algoritnm is designed. The algorithm is adaptable, with the use of neural network compensating the error of the model and the real helicopter. Then the paper develops the PD controller and introduced two trajectory tracking control algorithm. One bases on velocity loop inversion control and the other bases on the relationship between acceleration and attitude angle.Lastly, the trajectory which the unmanned helicopter tracked to aboard non-aviation ships is also designed. The whole simulation of the aboard operations is introduced.