Distinguished Guest Lecturer: Brian M. Kent
TITLE: Characterization of Space Shuttle Ascent Debris
Based on Radar Scattering and Ballistic Properties – Evolution of the NASA
Debris Radar (NDR) System
Date:
Tuesday, September 23, 2014
Time: 3:00 PM
Location: MIT Lincoln Laboratory (Auditorium)
Refreshments served at 2:30pm
Abstract: This presentation (with optional break) introduces
the NASA Debris Radar (NDR) system developed to characterize debris liberated
by the space shuttle (and any follow-on rocket system) during its ascent into
space. Radar technology is well suited for characterizing shuttle ascent
debris, and is especially valuable during night launches when optical sensors
are severely degraded. The shuttle debris mission presents challenging
radar requirements in terms of target detection and tracking, minimum detectable
radar cross-section (RCS), calibration accuracy, power profile management, and
operational readiness. After setting the stage with background of the
Columbia accident, I initially describe the NDR system consists of stationary
C-band radar located at Kennedy Space Center (KSC) and two X-band radars
deployed to sea during shuttle missions. To better understand the
signature of the shuttle stack, Xpatch calculations were generated at C and X
band to predict the radar signature as a function of launch time. These
calculations agreed very well with measured data later collected. Various
sizes, shapes, and types of shuttle debris materials were characterized using
static and dynamic radar measurements and ballistic coefficient calculations.
After an (Optional) break, my second Part discusses the NASA Debris Radar (NDR)
successes, which led to a new challenge of processing and analyzing the large
amount of radar data collected by the NDR systems and extracting information
useful to the NASA debris community. Analysis tools and software codes
were developed to visualize the shuttle metric data in real-time, visualize
metric and signature data during post-mission analysis, automatically detect
and characterize debris tracks in signature data, determine ballistic numbers
for detected debris objects, and assess material type, size, release location
and threat to the orbiter based on radar scattering and ballistic properties of
the debris. Future applications for space situational awareness and space-lift
applications will also be discussed.
For
more information, contact:
Raoul
O. Ouedraogo, raoul.ouedraogo@ll.mit.edu
Wajih
Elsallal, welsallal@mitre.org , or
Jonathan
Doane, jon.doane@ll.mit.edu
Please
contact Jonathan Doane to RSVP or if you are interested in attending remotely
via WebEx before 9-22-2014.
Foreign national
visitors to Lincoln Lab require visit requests. Please pre-register by e-mail to
reception@ll.mit.edu and indicate your citizenship.
For directions please see: http://www.ll.mit.edu/about/
Dr.
Brian M. Kent is a Consultant in Aerospace, Science, and Technology, and an
adjunct professor of Electrical Engineering with Michigan State University's
Department of Electrical Engineering. He recently completed 37 years of Service to
the United States Air Force having most recently served as the Chief
Technology Officer of Air Force Research Laboratory, Wright-Patterson Air
Force Base, Ohio. As CTO, he was AFRL’s principal scientific and technical
expert for a 6,500 person organization while overseeing a $2.2B+ research
portfolio. He is an internationally recognized scientific expert, and provided
technical advice to AFRL management and the professional staff. He has
significant experience in engineering education, radar, radar signature, and
other radio frequency technologies. He is currently a consultant supporting
both academic, and industrial partners related to the aerospace industry.
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During his previous tenure as AFRL’s
Sensor’s Directorate Chief Scientist, he served as the directorate's
principal scientific and technical adviser and primary authority for the
technical content of the science and technology portfolio. He identified research
gaps and analyzes advancements in a broad variety of scientific fields,
providing advice on their impact on laboratory programs and objectives. He
served as an internationally recognized scientific expert, and provided
authoritarian counsel and advice to AFRL management and the professional
staff as well as to other government organizations. He collaborated on
numerous interdisciplinary research problems that encompass multiple AFRL
directorates, customers from other DOD components, as well as the manned
space program managed by NASA.
Dr. Kent also served the USAF as Senior Scientist for Low Observables and Electromagnetics, Air Force Research Laboratory, where he performed and directed research, and development activities at the Multi-Spectral Radar Signature Measurement Facility, His primary responsibilities include the development and transition of advanced low observable electromagnetic analysis and measurement techniques to the Department of Defense and their aerospace industrial partners, and profoundly impacted the development and deployment of the F-117, B-2, F-22, and F-35 for the USAF. Dr. Kent's fundamental research interests encompass extremely broadband electromagnetic test and evaluation techniques, with special emphasis on the acquisition of measured performance data from basic 6.1/6.2 technology components through fully fielded and sustained weapon systems
Dr. Kent joined the Air Force
Avionics Laboratory in 1976 as cooperative engineering student through
Michigan State University. He received a National Science Foundation
Fellowship in 1979, working at both the Air Force Wright Aeronautical
Laboratories and the Ohio State University Electroscience Laboratory until
the completion of his doctorate. During his tenure with AFRL and its
predecessor organizations, Dr. Kent held a variety of positions, making pioneering
and lasting contributions to the areas of signature measurement technology,
and successfully established international standards for performing radar
signature testing before retiring from the USAF after 37 years of service.
Dr Kent was a lecturer for Georgia Tech Research Institute for over 9 years, and concurrently became an adjunct professor in 1998 at Michigan State University, and has served the department on the Visiting Committee, ABET accreditation, ECE Chair Search Committee, Deans Search Committee, and Dean’s advisory Committee. He has also participated in reforming the Senior Design Project classes, and has served for many years as a judge at the Spring and Fall Engineering “design day”.
Dr. Kent has authored and
co-authored more than 90 archival articles and technical reports and has
written key sections of classified textbooks and design manuals. He has
delivered more than 200 lectures, and developed a special DOD Low Observables
Short Course that has been taught to more than 3,000 scientists and engineers
since its inception in 1989. Dr. Kent has provided technical advice and
counsel to a wide range of federal agencies, including the Department of
Transportation, the Department of Justice and NASA's Space Shuttle Program.
He is also an international technical adviser for the DOD and has provided
basic research guidance to leading academic institutions.
EDUCATION 1980 BS degree in electrical engineering, highest honors, Michigan State University, East Lansing 1981 MS degree in electrical engineering, Ohio State University, Columbus 1984 Doctor of Philosophy degree in electrical engineering, Ohio State University, Columbus AWARDS AND HONORS 2014 Distinguished Presidential Rank Award Finalist
2014 Claude Erickson Distinguished
Engineering Alumni Award, Michigan State University
2009 Meritorious Presidential
Rank Award
Fellow, Air Force Research Laboratory Samuel Burka Award (two-time winner), Avionics Laboratory Best Paper Award, National Conference of Standards Laboratory Signature Technology Management Excellence Award, AFRL Signature Technology Director's Award, AFRL William F. Bahret Signature Technology Technical Achievement Award, AFRL Director's Award, Sensors Directorate, AFRL Letter of Commendation, B-2 Systems Program Office, Aeronautical Systems Division Staff Recognition Award, Columbia Accident Investigation Board Letter of Commendation, NASA External Customer Support Award, Sensors Directorate, AFRL John D. Ryder Distinguished Alumni Award, Michigan State University Best Dissertation in Electrical Engineering, Ohio State University PROFESSIONAL MEMBERSHIPS AND ASSOCIATIONS IEEE Distinguished Lecturer, Antenna and Propagation Society
Fellow,
Institute of Electrical and Electronic Engineers
Fellow, Antenna Measurement Techniques Association (AMTA) Former Technical Coordinator, Vice President and President, AMTA Associate Editor, Editorial board, IEEE Antenna and Wireless Propagation Letters Former Associate Editor, "AMTA Corner," IEEE Antenna and Propagation Magazine Eta Kappa Nu, Tau Beta Pi and Phi Kappa Phi Honorary Societies |
