Radhakant Padhi
Dr. Radhakant Padhi received his BE in Mechanical Engineering from University College of Engineering, Burla, Odisha, India in 1994, ME in Aerospace Engineering from Indian Institute of Science, Bangalore, India in 1996 and Ph.D. in Aerospace Engineering from Missouri University of Science and Technology – Rolla (formerly known as University of Missouri – Rolla), USA in 2001. After his Ph.D., he was a postdoctoral fellow in the same university for two years. In Dec 2003, he joined Indian Institute of Science, Bangalore as a faculty member and is currently working as an Associate professor. Dr. Padhi also served as a scientist at RCI / DRDO, Hyderabad during 1996-1997.
Dr. Padhi is an Associate Fellow of American Institute of Aeronautics and Astronautics (AIAA), a member of Institute of Electrical and Electronics Engineers (IEEE) and life members of both Aeronautical Society of India and Systems Society of India. He is the founding vice-president of the Automatic control and Dynamic Optimization Society and also a member of Technical committee on aerospace in International Federation of Automatic Control (IFAC) as well.
Dr. Padhi’s research interests are in the broad area of systems theory and applications. He is interested in Online trajectory optimization using real-time optimal control, Guidance and control of aerospace vehicles, Integrated guidance and control, Vision based guidance, Collision avoidance guidance, Nonlinear and adaptive control for robustness and reconfiguration, State estimation for feedback control and target tracking and Application of neural networks in guidance and control. He is also interested in the application of feedback control theory in biomedical systems, especially for automatic drug delivery.
Dr. Padhi has more than 150 publications in international journals and conferences. He has received several awards for his valuable research contributions, which include VNMM Award from IIT-Roorkee in 2010, Aeronautical Society of India Swarna Jayanti (Young Scientist) award in 2009, System Society of India Young Scientist Award in 2008 and Indian National Academy of Engineering Young Engineer Award in 2007. He has also received Best application paper award in 29th National Systems Conference in 2005, certificate of recognition for valued scholastic contributions from University of Missouri-Rolla and best student paper award in 2001 IEEE joint Conference on Control Applications and International Symposium on Intelligent Control. The guidance and control algorithms developed by Dr. Padhi have found good acceptance in ISRO and DRDO, the two pioneering establishments in India for space and defense applications.
Phone: +918022932756
Address: Department of Aerospace Engineering
Indian Institute of Science
Dr. Padhi is an Associate Fellow of American Institute of Aeronautics and Astronautics (AIAA), a member of Institute of Electrical and Electronics Engineers (IEEE) and life members of both Aeronautical Society of India and Systems Society of India. He is the founding vice-president of the Automatic control and Dynamic Optimization Society and also a member of Technical committee on aerospace in International Federation of Automatic Control (IFAC) as well.
Dr. Padhi’s research interests are in the broad area of systems theory and applications. He is interested in Online trajectory optimization using real-time optimal control, Guidance and control of aerospace vehicles, Integrated guidance and control, Vision based guidance, Collision avoidance guidance, Nonlinear and adaptive control for robustness and reconfiguration, State estimation for feedback control and target tracking and Application of neural networks in guidance and control. He is also interested in the application of feedback control theory in biomedical systems, especially for automatic drug delivery.
Dr. Padhi has more than 150 publications in international journals and conferences. He has received several awards for his valuable research contributions, which include VNMM Award from IIT-Roorkee in 2010, Aeronautical Society of India Swarna Jayanti (Young Scientist) award in 2009, System Society of India Young Scientist Award in 2008 and Indian National Academy of Engineering Young Engineer Award in 2007. He has also received Best application paper award in 29th National Systems Conference in 2005, certificate of recognition for valued scholastic contributions from University of Missouri-Rolla and best student paper award in 2001 IEEE joint Conference on Control Applications and International Symposium on Intelligent Control. The guidance and control algorithms developed by Dr. Padhi have found good acceptance in ISRO and DRDO, the two pioneering establishments in India for space and defense applications.
Phone: +918022932756
Address: Department of Aerospace Engineering
Indian Institute of Science
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Journal Papers by Radhakant Padhi
avoidance of unmanned aerial vehicles. When an obstacle is detected in the close vicinity and collision is predicted, an artificial safety sphere is put around the center of the obstacle. Next, the velocity vector of the vehicle is realigned towards an `aiming point' on the surface of the sphere in such a way that passing through it can guarantee safe avoidance of the obstacle. The guidance command generation is based on angular correction between the actual and the desired direction of the velocity vector. Note that the velocity vector gets aligned along the selected aiming point quickly (i.e., within a fraction of the available time-to-go), which makes it possible to avoid pop-up obstacles. The guidance algorithm has been verified with simulations carried out both for single obstacles as well as for multiple obstacles on the path and also with different safety sphere sizes around the obstacles. The proposed algorithm has been validated using both kinematic as well as point mass model of a prototype unmanned aerial vehicle. For better confidence, results have also been validated by incorporating a first-order autopilot models for the velocity vector magnitude and directions.