منابع مشابه
Compressive Matched-Field Processing
Source localization by matched-field processing (MFP) generally involves solving a number of computationally intensive partial differential equations. This paper introduces a technique that mitigates this computational workload by "compressing" these computations. Drawing on key concepts from the recently developed field of compressed sensing, it shows how a low-dimensional proxy for the Green'...
متن کاملBroadband matched-field processing of transient signals
Range and depth source localization in shallow water amounts to the estimation of the normalmode structure of the acoustic field. As "seen" by a vertical array, and from a modeling point of view, the normal-mode structure appears as a set of nonplane coherent waves closely spaced at a vertical angle. This paper presents a full-wave-field narrow-band high-resolution technique that uses the spect...
متن کاملElectromagnetic matched field processing for source localization
Matched eld processing (MFP) refers to signal and array processing techniques in which, rather than a planewave arrival model, complex-valued (amplitude and phase) eld predictions for propagating signals are used. Matched eld processing has been successfully applied in ocean acoustics. In this paper the extension of MFP to the electromagnetic domain, i.e., electromagnetic (EM) MFP (EM-MFP) is d...
متن کاملAdaptive and compressive matched field processing.
Matched field processing is a generalized beamforming method that matches received array data to a dictionary of replica vectors in order to locate one or more sources. Its solution set is sparse since there are considerably fewer sources than replicas. Using compressive sensing (CS) implemented using basis pursuit, the matched field problem is reformulated as an underdetermined, convex optimiz...
متن کاملMulti-frequency sparse Bayesian learning for robust matched field processing.
The multi-snapshot, multi-frequency sparse Bayesian learning (SBL) processor is derived and its performance compared to the Bartlett, minimum variance distortionless response, and white noise constraint processors for the matched field processing application. The two-source model and data scenario of interest includes realistic mismatch implemented in the form of array tilt and data snapshots n...
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ژورنال
عنوان ژورنال: IEEE Journal of Oceanic Engineering
سال: 1993
ISSN: 0364-9059
DOI: 10.1109/48.211502