Advanced Descent Scheme for Lunar Landing

Spacecraft motion control system is very important for safely landing on the moon surface. To reduce complexity and increase performance in landing system motivates to develop a new idea for lunar lander descent scheme. Moreover, precise landing capability with high robustness against parameter uncertainties and optimality in fuel consumption with the ability to be landed vertically are essential for future lunar or planetary landing missions. This research qualitatively represents an advanced gravity-turn descent issue to allow an accurate depiction of descent from orbital condition. In fact, this idea expands the sphere of legitimacy of the gravity-turn illumination from low velocity terminal descent to a complete descent starting at parking orbit. It can readily be used to develop real-time guidance algorithm for future lunar landing mission reducing the computational burden.