TV guidance technical schemes for manned lunar soft landing

This paper researches the manually controlled site reselection focusing on the approaching phase and landing phase of soft landing of manned lunar landing. First, this paper introduces the phase division of manned lunar landing, establishes the kinetic model for lunar module and then makes research on the manual control site selection scheme under TV guidance. In the TV guidance scheme, the astronaut can directly select new lunar landing point within the field of view. The target guidance is achieved by automatic control system. Meanwhile, the impact of response delay of the astronaut on tasks in actual execution is considered. According to the simulation results of the guidance scheme, as the TV guidance is not restricted by the angle of sight, the adjustable range of the landing point is relatively great. Meanwhile, TV guidance has relatively great requirements on the attitude maneuver. In addition, the earlier the site reselection made by the astronaut, the greater the adjustable range of the landing point is.