Clark School Home UMD
ECE

News Story

Stealth Strategy Paper by Justh, Krishnaprasad Published

Stealth Strategy Paper by Justh, Krishnaprasad Published

A new article by Assistant Research Scientist Eric Justh (ISR) and Professor P.S. Krishnaprasad (ECE/ISR) titled "Steering Laws for Motion Camouflage" was highlighted and published online in the Proceedings of the Royal Society of London, Series A.

The paper examines the phenomenon known as motion camouflage. Using their remarkable compound eyes, visual insects such as hoverflies and dragonflies display a geometric strategy for stealth while engaged in mating behaviors, territorial battles and predation. This strategy consists of flight patterns in which a pursuer insect manages to camouflage its movement from a pursuee by blending with fixed objects in the background. Echolocating bats that hunt insects in the dark using ultrasound sonar also employ a flight strategy geometrically indistinguishable from that of motion camouflage (see Ghose, Horiuchi, Krishnaprasad and Moss in PLoS Biology). The neurobiological basis of how such flight strategies are realized in nature is unknown.

In their paper, Justh and Krishnaprasad develop a simple model of interacting particles that represents the engagement of pursuer and pursuee. They then proceed to derive a biologically plausible feedback law that captures the phenomenon of motion camouflage. There is a close similarity between this law and control algorithms used in the field of missile guidance.

The models, methods and computational work in this paper offer biologists tools to explore behaviors in nature, where the constraints of physics meet the computational power of sensorimotor systems.

July 5, 2006


Prev   Next

Current Headlines

UMD Researchers Use Artificially Engineered Materials to Create Breakthrough for Sound Sensors

Liu Delivers Keynote at INTERSPEECH 2014

Barg Awarded $300K NSF Grant to Research Data Storage and Recovery Methodologies

Itzhak Tamo Accepts Assistant Professorship

Khaligh receives U.S. Patent 8,853,888 for multiple-input DC-DC converter

Wu Named Editor-in-Chief of IEEE Signal Processing Magazine

Whiting-Turner Lecture Series to Feature Colwell and Langford

UMD Recognized for Top Innovation and Entrepreneurship Programs

News Resources

Return to Newsroom
Search News
Archived News

Events Resources

Events Calendar

Additional Resources

UM Newsdesk
Faculty Experts