Real Time Mid-course Maneuver and Guidance of a Generic Reentry Vehicle

  • Avinash Chander Defence Research and Development Organisation, New Delhi
  • Iyyanki V. Murali Krishna Jawaharlal Nehru Technological University, Hyderabad
Keywords: Ascent phase guidance, mid-course maneuver, reentry vehicle, terminal accuracy, range augmentation, trajectory reshaping.


The aim of any mission is to accomplish the final objective with desired accuracy and the same is valid for a generic launch vehicle. In many missions it is necessary to execute mid-course maneuvers with an intentional diversion trajectory to create a counter measure or to avoid certain specific known geographical locations. The current work elaborates a novel and practically implementable mid-course maneuver and an ascent phase guidance of a reentry vehicle executing an in-flight determined mid-course maneuver (trajectory reshaping) without compromising the accuracy of the final achieved target position. The robustness of the algorithm is validated with 6DoF simulation results by considering the dispersion of the burnout state vector conditions which arises due to variations in thrust profile, aerodynamics characteristics of the vehicle, atmosphere, etc.

Defence Science Journal, 2013, 63(4), pp.346-354, DOI:

Author Biographies

Avinash Chander, Defence Research and Development Organisation, New Delhi

Mr Avinash Chander received his BE (Electrical Eng.) from IIT Delhi, in 1972 and MS (Spatial Information Technology) from Jawaharlal Nehru Technological University, Hyderabad. He is presently working as SA to RM and Secretary, Defence R&D and DGR&D, DRDO. He received many Awards like, DRDO Scientist of the Year-1989, Astronautical Society of India Award-1997, DRDO AGNI Self reliance Award-1999, Dr Biren Roy Space award-2000, DRDO Award for Path Breaking Research/Outstanding Technology Development-2007, Outstanding Technologist Award-2008 byPunjab Technical University. His areas of interest include: Navigation, guidance, mission design.

Iyyanki V. Murali Krishna, Jawaharlal Nehru Technological University, Hyderabad

Dr Iyyanki V. Murali Krishna received his MTech from IIT Madras and PhD from IISc, Bangalore in 1977. He is presently working as Director, Institute of Science and Technology and Coordinator of Centre for Atmospheric Sciences and Weather Modification Technologies at JawaharlalNehru Technological University, Hyderabad. His areas of interest includes: Geospatial technology and data mining, soft computing technologies, disaster management, satellite meteorology and weather informatics.

How to Cite
Chander, A., & Krishna, I. (2013). Real Time Mid-course Maneuver and Guidance of a Generic Reentry Vehicle. Defence Science Journal, 63(4), 346-354.
Aeronautical Systems