Krishnaprasad, P.S.

Krishnaprasad, P.S.
Institute for Systems Research
Department of Electrical and Computer Engineering
2233 A.V. Williams Bldg., University of Maryland, College Park, MD 20742
Research Interests 
Modeling, design, motion planning and control arising in mobile robotics; geometric methods in nonlinear dynamics; time-frequency analysis of acoustic signals and systems; intelligent control architectures, in part inspired by biological paradigms; technology and theory of smart materials for use in actuation and sensing; problems of high resolution optical wave front control; problems of integration of actuators and sensors in control networks; new types of particle filters for approximate solutions to nonlinear filtering problems; sensing and control in nature; control of collectives (communicating, networked, control systems.)
Background Info 

P.S. Krishnaprasad received his Ph.D. degree from Harvard University in 1977. He was on the faculty of the Systems Engineering Department at Case Western Reserve University from 1977 to 1980. He has been with the University of Maryland since August 1980, where he has held the position of Professor of Electrical Engineering since 1987, and a joint appointment with the Institute for Systems Research since 1988. He is also a member of the Applied Mathematics Faculty.

Krishnaprasad has held visiting positions with Erasmus University (Rotterdam); the Department of Mathematics, University of California, Berkeley; the University of Groningen (the Netherlands); the Mathematical Sciences Institute at Cornell University; and the Mechanical and Aerospace Engineering Department at Princeton University.

Krishnaprasad's research interests lie in the broad area of geometric control theory and its applications. His contributions include geometry of parametrization problems in linear systems, the Lie algebraic foundations of certain nonlinear filtering problems pertaining to system identification, the Lie theory and stability of interconnected mechanical systems (e.g., spacecraft with elastic attachments, spinning rotors, and fluid-filled cavities), and symmetry principles in nonlinear control theory. He has also investigated mathematical problems in the kinematics and control of robot manipulators, the real-time control of flexible robot arms with end-point sensing, tactile perception, and the development of symbolic algebraic tools for design and control. In the last several years, his interests have drawn him to: problems of modeling, design, motion planning and control, arising in mobile robotics (legged and wheeled vehicles, autonomous underwater vehicles and autonomous aircraft); geometric methods in nonlinear dynamics; wavelet analysis for signals and systems; intelligent control architectures, in part inspired by biological paradigms such as central patterns generators and neural networks; the technology and theory of smart materials such as piezo-electric and magnetostrictive materials for use in actuation and sensing; problems of integration of actuators and sensors in control networks; and modeling, simulation, monitoring and control in semiconductor manufacturing processes, such as rapid thermal chemical vapor deposition.

A central interest in geometric control theory, geometric mechanics, Lie groups, and distributed parameter systems, guides the technical approaches taken to attack problems in the above areas. Additionally, some of this work is also linked to the experimental efforts in the Intelligent Servosystems Laboratory. In the area of semiconductor processing, experimental efforts are being explored with collaborating University and Industry partners.

P.S. Krishnaprasad was elected a Fellow of the IEEE in 1990 for his contributions to geometric and nonlinear control and engineering education. He also was appointed a 1998-2000 Distinguished Faculty Research Fellow of the University of Maryland. He was the Munich Mathematical Colloquium Lecturer on October 24, 2006, at the Technical University of Munich and is the recepient of the Hendrik W. Bode Lecture Prize for 2007 from the IEEE Control Systems Society, for distinguished contributions to control systems science and engineering. He presented the Bode Lecture on December 14, 2007 at the IEEE Conference on Decision and Control.

Related News 

Alumnus Xiaobo Tan elevated to ASME Fellow
Tan was recognized for his work in robotics.March 7, 2019

Shoukry, Krishnaprasad receive NSF grant for resilient-by-cognition cyber-physical systems
The researchers will equip autonomous systems with an additional layer of intelligence to improve safety and resilience.October 1, 2018

Alumnus Philip Twu's exciting career in space robotics
Twu has worked on both the Parker Solar Probe and the 2020 Mars Rover.March 30, 2018

Alumnus Xiaobo Tan named Withrow Distinguished Scholar at Michigan State
The award recognizes the scholarship of senior faculty members in the MSU College of Engineering.March 22, 2018

Alumni Naomi Leonard and Xiaobo Tan part of public lecture on underwater robotics
The lecture was part of the Halcyon Dialogues on Robotics held at AAAS headquarters in Washington, D.C.October 20, 2017

Alumnus Fumin Zhang promoted to full professor at Georgia Tech
His research interests are in the design and control of marine robots and mobile sensor networks, as well as cyber-physical systems theory.March 29, 2017

Alumna Naomi Leonard wins Hendrik W. Bode Lecture Prize
IEEE Control Systems Society prize recognizes distinguished contributions to control systems science or engineering.December 16, 2016

Alumnus Xiaobo Tan elevated to IEEE Fellow
His citation reads, “for contributions to modeling and control of smart materials and underwater robots.”November 28, 2016

Small collectives and nonlinear dynamics
New paper by Krishnaprasad, Galloway, Justh published in Proceedings of the Royal Society A.November 9, 2016

Alum Xiaobo Tan named 'Foundation Professor' at Michigan State
Tan develops bio-inspired underwater robots, electroactive polymer sensors and actuators.January 27, 2016

Naomi Leonard to be inducted into Innovation Hall of Fame
Clark School honoring alumna for work in cooperative controlOctober 16, 2015

Alumnus Xiaobo Tan promoted to full professor at Michigan State
Tan earned a 2002 Ph.D. in electrical engineering from the University of Maryland.July 13, 2015

Optimal control and strong interactions imply flock cohesion
New work suggests that copying behavior in social groups may be governed by optimal control theoryApril 2, 2015

Workshop on Geometry of Collective Behavior organized by P. S. Krishnaprasad
The workshop was part of the 53rd IEEE Conference on Decision and Control.December 12, 2014

Alumnus Matteo Mischiati is lead author of sensorimotor control study in Nature
Research shows dragonflies use predictive control strategies, not just simple reactions, to capture prey.December 12, 2014

Alum Dimitris Tsakiris improves propulsion of robotic octopus
Paper is finalist for two awards at IROS 2014.September 29, 2014

Alum Xiaobo Tan developing robotic fish to 'stalk' real fish in the Great Lakes
The MSU professor's fish will track the movements of lake trout, walleye and lake sturgeon.September 29, 2014

Galloway, Justh, Krishnaprasad publish chasing and flocking research in Proceedings of the Royal Society A
New models and equations aid in understanding of natural phenomena, has implications for engineered networks of robots.August 17, 2013

UAE students, Northrop Grumman engineers tour robotics laboratories
Visitors were in town for the annual AUVSI conference.August 14, 2013

Alum Xiaobo Tan improves robotic fish
Fish now can glide for long distances.January 17, 2013

MERIT-BIEN and TREND Fair Showcases Undergraduate Research
More than 20 undergraduate students participate in research projects sponsored by ECE and IREAP.August 7, 2012

Krishnaprasad awarded AFOSR DURIP for collective behavior testbed
System will include mobile robots, cameras and enhanced computational resources.July 2, 2012

Alum Sean Andersson earns tenure at Boston University
Former student of P. S. Krishnaprasad has research interests in systems and control theory.May 3, 2012

Krishnaprasad delivers Princeton Baetjer Colloquium lecture
Was named to the 2012 Baetjer Colloquium Lectureship for contributions to geometric control, filtering theory, robotics and bio-inspired design.May 2, 2012

Alum Xiaobo Tan's research featured in NSF Highlight
Story features Tan's artificial muscle-enabled robotic fish.April 1, 2012

Alum Kevin Galloway starts postdoc at University of Michigan
Former student of P. S. Krishnaprasad will develop feedback controls for bipedal robots.October 6, 2011

Alum Fumin Zhang wins ONR Young Investigator Program award
Former student of P.S. Krishnaprasad is one of only 17 recipients nationwide.April 7, 2010

Paper by Krishnaprasad, Justh, Wei published in Proceedings of the Royal Society A
Paper offers possible evolutionary basis for flight behavior in echolocating bats.February 26, 2009

Krishnaprasad gives inaugural Cymer Distinguished Lecture
Cymer Center for Control Systems and DynamicsJune 19, 2008

Alumnus Xiaobo Tan receives ONR grant for biomimetic robotic fish
Robots are based on biological principles and incorporate biomimetic electroactive polymers.April 8, 2008

P.S. Krishnaprasad gives Bode Lecture
Winner of 2007 Bode Prize spoke at 46th IEEE CDC Conference.December 10, 2007

Stealth strategy paper by Justh, Krishnaprasad published
Researchers develop simple model that represents the engagement of pursuing bats and their insect preyJuly 5, 2006

Abed, Baras, Krishnaprasad, Justh speak at swarming workshop
Speakers apply natural behaviors to networked groups of autonomous vehiclesAugust 16, 2005

ISR alum George Kantor co-authors new robotics book
Principles of Robot Motion includes theory, algorithims and implementationJune 8, 2005

Horiuchi, Krishnaprasad receive $286,000 AFOSR grant
Research to focus on "Neuromorphic VSLI-Based Bat Echolocation for Micro-Aerial Vehicle Guidance"March 5, 2004

Leonard conducts underwater robotics research
Team launched fleets of underwater vehicles into the Pacific OceanSeptember 1, 2003

Shamma, Horiuchi, Baras, Krishnaprasad, Moss awarded acoustic sensors contract
Team will develop intelligent and noise-robust interfaces for MEMS acoustic sensors for DARPAApril 10, 2000