Status and development trend of the guidance and control for air-breathing hypersonic vehicle

Guidance and control technique is one of the key technologies of hypersonic vehicles and it is also a focus in control discipline, in which many advanced control theories have been applied. In this paper, we analyze the nonlinearity, strong couplings, uncertainties and other characteristics of the air-breathing hypersonic vehicle's dynamic model and point out the challenges of guidance and control technique for hypersonic vehicle. Then, based on combining domestic and foreign research results, the theories and approaches for this issue are discussed particularly by classification, including nonlinear control based on linearization and nonlinear control directly against nonlinear model. In addition, the unsolved problems and deficiencies in this field are analyzed by reviewing the existing literature. Finally, combined with the goal of robustness, adaptability and intellectuality for the air-breathing hypersonic vehicle, the development trend is suggested in the following four aspects: guidance law for tracking maneuvering target, guidance law of interceptor against hypersonic target, maneuvering control in all-aerospace and advanced intelligent control theories.