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X-ORIGINAL-URL:https://aero.iisc.ac.in
X-WR-CALDESC:Events for Department of Aerospace Engineering
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TZID:Asia/Kolkata
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DTSTART:20240101T000000
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BEGIN:VEVENT
DTSTART;TZID=Asia/Kolkata:20240712T113000
DTEND;TZID=Asia/Kolkata:20240712T123000
DTSTAMP:20260526T215142
CREATED:20240712T060711Z
LAST-MODIFIED:20240803T060918Z
UID:10000013-1720783800-1720787400@aero.iisc.ac.in
SUMMARY:State estimation strategies for space object tracking in the context of space situational awareness
DESCRIPTION:Due to increased human activity in the last two decades\, near-earth space has become congested from functional/non-functional satellites and space debris. These space objects of human origin\, along with natural asteroids and space weather\, pose natural\, accidental\, or intentional threats to functional and expensive satellites. It is imperative to track space assets continuously as well as assess collision threats to take necessary actions\, which is termed Space Situational Awareness (SSA). Assessing the risk of collision of these space debris with active satellites requires estimation of the positions and velocities of both objects. In this talk\, we will briefly discuss some recent advancements in non-linear state estimation techniques – computationally efficient Unscented Kalman Filter and Particle Filter\, and their effectiveness in various space vehicle tracking. We will also examine the possibility of using the underlying efficient uncertainty propagation technique used in these estimators for long-term position uncertainty propagation of a space object. We will then focus on space debris below 10 cm in diameter\, which is difficult to track. In this context\, we will present a Physics Informed Neural Network (PINN)—based approach for estimation of the trajectory of space debris after a collision event between an active satellite and space debris. \n  \nSpeaker: Dr. Sanat K. Biswas \nBiography: Dr. Sanat K. Biswas is an Assistant Professor at IIIT Delhi. He received the B.E. degree from Jadavpur University in 2010\, the M.Tech. degree in Aerospace Engineering from IIT Bombay in 2012\, and a PhD degree in computationally Efficient Unscented Kalman filters for space vehicle navigation from the University of New South Wales (UNSW)\, Sydney\, in 2017. At IIIT Delhi he leads the Space Systems Laboratory and is involved in developing algorithms for Space Situational Awareness\, NavIC reflectometry receiver for remote sensing applications and Precise Point Positioning (PPP) of Low Earth Orbit Satellites. Dr. Biswas serves on the technical committee on Space Communications and Navigation (SCAN)\, and the technical committee on Space Traffic Management (STM) of the International Astronautical Federation. He was the recipient of the 2014 Emerging Space Leaders Grant from the International Astronautical Federation\, the 2019 Early Career Research Award from the Department of Science and Technology\, India and the Young Scientist Award 2020 and 2021 from the International Union of Radio Science (URSI) and 2020 Harry Rowe Mimno Award from the IEEE Aerospace and Electronic Systems Society.
URL:https://aero.iisc.ac.in/event/state-estimation-strategies-for-space-object-tracking-in-the-context-of-space-situational-awareness/
LOCATION:AE Auditorium
CATEGORIES:AE Seminar
ATTACH;FMTTYPE=image/jpeg:https://aero.iisc.ac.in/wp-content/uploads/2024/04/AE-Seminar.jpg
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DTSTART;TZID=Asia/Kolkata:20240719T103000
DTEND;TZID=Asia/Kolkata:20240719T233000
DTSTAMP:20260526T215142
CREATED:20240719T061638Z
LAST-MODIFIED:20240803T061806Z
UID:10000016-1721385000-1721431800@aero.iisc.ac.in
SUMMARY:On mathematical analysis of biomembrane structures
DESCRIPTION:During the cellular processes\, membrane instabilities play a crucial role across the several domains of life. In many cases\, this is aided by evolutionary molecular complexes. For example\, the complex contains protein monomers that adhere to the cell membrane and polymerize into thin filaments\, which proceed to form a helical constricting bundle\, eventually leading to the cleavage of the neck during cell division; the exact mechanism by which the helical filament induces curvature in the membrane is poorly understood. Recently\, we explored the mechanics of membrane and filament coupling through a continuum model for both structures and presented computational strategies to solve the highly nonlinear model. In an ongoing work\, we model a similar phenomenon associated with particles and use linear stability analysis to predict the onset of certain instabilities in the case when proteins are modeled as embedded particles. A part of this research is under current investigation using both numerical techniques as well as tools of local nonlinear analysis of bifurcating branches. \nSpeaker: Prof. Basant Lal Sharma \nBiography: Prof. Basant Lal Sharma received a Bachelor of Technology in Mechanical Engineering from the Indian Institute of Technology Bombay\, Powai\, Mumbai\, India\, in 1999. In 2004\, he received a Ph.D. in Mechanics (P. Rosakis) from Cornell University\, Ithaca\, NY\, USA. After post-doctoral positions at Cornell University (S.H. Strogatz) and École Polytechnique\, Palaiseau\, Paris\, France (L. Truskinovsky)\, he joined the Department of Mechanical Engineering\, Indian Institute of Technology Kanpur in January 2007 as a Faculty member.
URL:https://aero.iisc.ac.in/event/on-mathematical-analysis-of-biomembrane-structures/
LOCATION:STC Seminar Hall\, Dept. of Aerospace Engineering
CATEGORIES:AE Seminar
ATTACH;FMTTYPE=image/jpeg:https://aero.iisc.ac.in/wp-content/uploads/2024/04/AE-Seminar.jpg
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