9 papers
Real-Time Retargeting Using Controllability Boundary for Chandrayaan-3 Lunar Landing
Suraj Kumar, Debjyoti Chakrabarti, Aditya Rallapalli +2
This paper presents the real-time retargeting guidance policy developed for the Chandrayaan-3 lunar landing mission. The baseline guidance generates approximate fuel-optimal descen…
Decoupled Thrust-Axis Attitude Control Using Quaternions for Chandrayaan-3 Lunar Landing Mission
Aditya Rallapalli, Suraj Kumar, Rijesh M P +2
Chandrayaan-3 mission achieved a historic milestone with its successful soft landing near the lunar south pole, highlighting the critical role of the navigation, guidance, and cont…
Closed-Loop Control Law for Low Thrust Orbit Transfer with Guaranteed Stability
Suraj Kumar, Aditya Rallapalli, Nivriti Priyadarshini +2
Electric propulsion is used to maximize payload capacity in communication satellites. These orbit raising maneuvers span several months and hundreds of revolutions, making trajecto…
Powered Descent Trajectory Optimization of Chandrayaan-3 using Radau Collocation and Controllable Sets
Suraj Kumar, Aditya Rallapalli, Ashok Kumar Kakula +1
India achieved a significant milestone on August 2023, becoming the fourth country to accomplish a soft landing on the Moon. This paper presents the powered descen…
Analysis of Optimal Thrust to Mass Ratio Requirement for Maximizing Payload Mass of Lunar Landing Mission
Aditya Rallapalli, Suraj Kumar, Rijesh MP +2
Recent successful lunar landing missions have generated significant interest among space agencies in establishing a permanent human settlement on the Moon. Building a lunar base re…
Solving Infinite-Horizon Optimal Control Problems using the Extreme Theory of Functional Connections
Tanay Raghunandan Srinivasa, Suraj Kumar
This paper presents a physics-informed machine learning approach for synthesizing optimal feedback control policy for infinite-horizon optimal control problems by solving the Hamil…