Study on energy management boost phase guidance of solid rocket with terminal multi-constraints

For the separation requirements of the hypersonic flight vehicle, the study on energy management boost phase guidance of solid rocket with terminal multi-constraints is carried out. Considering the flight characteristics of the third stage, a co-design method is presented for the guidance of longitudinal and lateral channels. Longitudinal guidance based on height-time space trajectory planning and the tracking control law is designed to meet multi-constraints of terminal height, angle of flight path and angle of attack. The lateral guidance adopts twice reverse fixed alternate attitude control energy management (AEM) and uses the prediction-correction method to revise parameters to improve the precision of velocity control and realize lateral deviation convergence. The simulation shows that this method can realize different terminal constraint requirements and has online self-adaptive ability.