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Philip Marston Non-Academic Affilliate pmarst@uw.edu |
Biosketch
Dr. Philip Marston has been a faculty member in the Department of Physics and Astronomy at Washington State University since 1978 and was promoted to Professor in 1983. He has been a Fellow of the Acoustical Society of America since 1988 and has over 180 peer-reviewed publications.
From 2000-2005, 2008, 2009-2011 Dr. Marston was the Acoustics representative to the US Liaison Committee for the International Union of Pure and Applied Physics. From 2008-2014 he served terms on the Physics Today Advisory Committee.
In 2013 he began service on the editorial board of Acoustical Society of America Press.
His research in acoustics, fluid physics, and scattering has been supported by ONR and by NASA.
Education
B.S. Physics, Seattle Pacific College, 1970
M.S. Physics, Stanford University, 1972
M.S. Electrical Engineering, Stanford University, 1974
Ph.D. Physics, Stanford University, 1976
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Publications |
2000-present and while at APL-UW |
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Omega-K beamforming: Practical ramifications of alternative formulations Marston, T.M., and D.S. Plotnick, "Omega-K beamforming: Practical ramifications of alternative formulations," JASA Express Lett., 3, doi:10.1121/10.0020303, 2023. |
More Info |
1 Jul 2023
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The Omega-K algorithm is widely used for creating imagery from synthetic aperture sonar and radar data. In early literature related to Omega-K beamforming, two alternative forms of the algorithm exist: one in which a critical matched-filtering stage is applied before Stolt-mapping and one in which it is applied after. The former was adopted as the standard approach in both fields. In the present study, it is demonstrated that applying the matched-filter prior to Stolt-mapping has the potential to alias acoustic energy associated with wide aperture angles, causing artifacts in imagery, whereas the alternative formulation avoids these artifacts. |
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