New Physical Models and Methods for Source Localization.
Abstract
The research focuses on the development of sensor processing methods for source localization and parameter estimation. The main contributions are: the introduction of electromagnetic and acoustic vector-sensor processing; development of radar polarimetric methods, including remote sensing applications, and optimum choices of transmitting signals and polarizations; methods for sensor calibration using active sources; localizing sources using a small number of mobile sensors that can replace methods with a large number of stationary sensors; localization of vapor emitting sources with chemical sensor arrays; detection of radioactive sources with projection-based sensor arrays; localization of current dipoles with SQUID magnetic sensors. The methods have been analyzed using performance bounds, statistical techniques, and computer simulations. Several fundamental results have been established on source parameter identifiability, such as expressions for the maximum number of sources identifiable in array processing models. Other results include techniques for quantifying and tracking non-rigid object motion and for spectral line filtering. Transition of the acoustic work has been made to the Naval ASTO Office and NUWC Lab. Potential transitions to civilian applications include seismology, biomedicine, and environmental sensing.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1996
- Accession Number
- ADA315606
Entities
People
- Arye Nehorai
Organizations
- Yale University