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Dr. Arthur
Wright Mansfield, Chief Scientist of the NASA Search and Rescue
Mission, Dies
Dr. Arthur Wright
Mansfield, 60, of Rockville, Maryland, died on Tuesday, November
6, 2001 of cancer at the Suburban Hospital in Bethesda, Maryland.
Dr. Mansfield
served as the Chief Scientist for the NASA Search and Rescue Mission
Office at Goddard. Over the last eight years, Dr. Mansfield was
leading efforts to develop a fully polarimetric Synthetic Aperture
Radar (SAR) system for search and rescue and a state-of-the-art
Interferometric SAR system for terrain elevation extraction and
coherent change detection applications. Based on original research
and development conducted by Dr. Mansfield, these systems involved
the design and implementation of sophisticated data processing and
motion compensation algorithms, polarimetric-based automatic target
detection techniques for locating crashed aircraft, and advanced
interferometric processing methods for targeting applications and
generating highly accurate digital terrain elevation maps.
Dr. Mansfield,
had over twenty-five years of experience in applied mathematics,
space systems, and signal processing in both research and development
and operations environments. He was a recognized national expert
in digital signal processing, especially synthetic aperture radar
(SAR), specializing in the development and implementation of state-of-the-art
radar processing algorithms. Co-holder of three U.S. Patents, he
authored over 20 published papers describing original work and significant
contributions in the fields of SAR auto-focusing, Interferometric
SAR (IFSAR), SAR data compression and motion compensation. He was
a member of several honor and professional societies, including
Phi Beta Kappa, Institute of Electrical and Electronic Engineers
(IEEE), and the International Society for Optical Engineering (SPIE).
Since 1995,
Dr. Mansfield was a consultant to government agencies and private
companies, including NASA, U. S. Navy, U. S. Air Force, Science
Applications International Corporation, User Systems Inc., BAE Systems,
Computer Sciences Corporation and QSS Group Inc. He designed and
implemented the portable SAR processor software for the Open Skies
SAR in 1995. "As the Chief Scientist of the NASA Search and
Rescue Mission Office, his contributions were numerous and invaluable
in the past eight years. His original research and development in
SAR polarimetry and interferometry placed the Search and Rescue
Mission's SAR program on the map in the radar and search and rescue
communities." David W. Affens, the Search and Rescue Mission
Manager, continued by saying, he was "the heart of our radar
program."
Dr. Mansfield,
a member of Christ Episcopal Church in Rockville, Maryland, is survived
by his wife Linda Buchanan Mansfield of Jacksonville, Florida, and
step children Bill, Britt and Carson Garoni. Dr. Mansfield was predeceased
by his beloved brother Anthony R. Mansfield who died on October
16, 2001. At the request of his wife, Linda, memorial contributions
should be sent to Christ Episcopal Church, 107 South Washington
Street, Rockville, Maryland, 20850, and/or Montgomery County Society
for the Prevention of Cruelty to Animals (SPCA), P. O. Box 637,
Washington Grove, Maryland, 20880.
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