March 2025 | Conference Paper
On the Resolution of the Synthetic-Aperture Passive Source Localization Algorithm
Cite This Publication
Andre Celestin, Matthew J. Rhilinger, and Margaret Cheney, “On the Resolution of the Synthetic-Aperture Passive Source Localization Algorithm,” in 2024 58th Asilomar Conference on Signals, Systems, and Computers (Pacific Grove, CA, October 2025).
Abstract:
Source localization is the process of locating a source of electromagnetic waves or acoustic waves from passive
measurements of the emitted fields made on distributed receivers. This is an important problem for both military and civilian applications. The Synthetic Aperture Passive Source Localization (SAPSL) algorithm combines statistical methods with techniques from Synthetic-Aperture Radar to attain a high-resolution image from two receivers. We focus on the case of wave propagation in a homogeneous medium, sources restricted to lie on a known surface, and slowly moving sensors. This paper contains resolution formulas for the SAPSL algorithm for two different sensor geometries. The first geometry consists of a stationary isotropic source located between one stationary sensor and one mobile sensor on a linear path. The second geometry consists of a stationary isotropic source and two mobile sensors following each other along a linear path. In both geometries, we make narrow-aperture assumptions in order to obtain simple resolution formulas. This paper also presents numerical simulations that verify the resolution predicted from the formulas.
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Andre Celestin
Institute for Telecommunication Sciences
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Funding Information
Performing Agency
U.S. Department of Commerce
National Telecommunications and Information Administration
Institute for Telecommunication Sciences
325 Broadway
Boulder, CO 80305
https://ror.org/00mj5bc69
Funding Agency
U.S. Department of Commerce
National Telecommunications and Information Administration
Herbert C. Hoover Building
14th and Constitution Ave., N.W.
Washington, D.C. 20230
https://ror.org/032241511
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