Optimal source localization and tracking using arrays with uncertainties in sensor locations
MetadataShow full item record
We develop a computationally efficient iterative algorithm for source localization and tracking using active/passive arrays with uncertainties in sensor locations. We suppose that the available data consist of time delay, or differential time delay, measurements of the signal wavefront across the array. We consider a general senario in which the array uncertainties may be correlated in time and in space. The proposed algorithm is optimal in the sense that it converges montonically to the Maximum Likelihood (ML) estimate of the source trajectory parameters. In the case of multiple sources, the algorithm makes an essential use of the information available from all sources to reduce the array uncertainties (the so-called array callibration) and thus to improve the localization accuracy of each signal source. We also derive new expressions for the log-likelihood gradient, the Hessian, and the Fisher's information matrix, that may be used for efficient implementation of gradient based algorithms, and for assessing the mean square error of the resulting ML parameter estimates.
Suggested CitationTechnical Report: Segal, Mordechai, Weinstein, Ehud, "Optimal source localization and tracking using arrays with uncertainties in sensor locations", 1989-08, DOI:10.1575/1912/6429, https://hdl.handle.net/1912/6429
Showing items related by title, author, creator and subject.
The horizontal mooring : a two-dimensional array, description of the array, components, instrumentation, deployment and recovery operations Trask, Richard P.; Anderson, Steven P.; Way, Bryan S.; Ostrom, William M.; Paul, Walter; Grosenbaugh, Mark A.; Gobat, Jason I.; Weller, Robert A. (Woods Hole Oceanographic Institution, 1999-09)A moored two-dimensional array with instrumentation distributed both horizontally and vertically was deployed for 27 days in August 1998 at an 85 meter deep site in Massachusetts Bay near Stellwagon basin. The horizontal ...
The North Atlantic biological pump : insights from the Ocean Observatories Initiative Irminger Sea Array Palevsky, Hilary I.; Nicholson, David P. (The Oceanography Society, 2018-02-09)The biological pump plays a key role in the global carbon cycle by transporting photosynthetically fixed organic carbon into the deep ocean, where it can be sequestered from the atmosphere over annual or longer time scales ...
Western Arctic Shelf-Basin Interactions Experiment : processing and calibration of moored profiler data from the Beaufort Shelf Edge mooring array Fratantoni, Paula S.; Zimmermann, Sarah; Pickart, Robert S.; Swartz, Marshall (Woods Hole Oceanographic Institution, 2006-12)A high-resolution mooring array was deployed at the edge of the continental shelf in the Beaufort Sea as a part of the western Arctic Shelf-Basin Interactions Program, a multidisciplinary experiment that was designed to ...