Search
Now showing items 1-10 of 11
A three-dimensional coupled modes solution for range-dependent waveguides
(Massachusetts Institute of Technology, 2005)
Despite the great achievements obtained with fast-field and parabolic equation models, normal mode programs still remain a very efficient, simple and practical tool for describing ocean acoustics in range-independent ...
A channel subspace post-filtering approach to adaptive equalization
(Massachusetts Institute of Technology, 2002)
Physically constrained maximum likelihood method for snapshot deficient adaptive array processing
(Massachusetts Institute of Technology, 2003)
Analysis of acoustic communication channel characterization data in the surf zone
(Massachusetts Institute of Technology, 2000)
Physically constrained maximum likelihood (PCML) mode filtering and its application as a pre-processing method for underwater acoustic communication
(Massachusetts Institute of Technology, 2009)
Mode filtering is most commonly implemented using the sampled mode shape or pseudoinverse algorithms. Buck et al [1] placed these techniques in the context of a broader maximum a posteriori (MAP) framework. However, the ...
Sound propagation around underwater seamounts
(Massachusetts Institute of Technology, 2009)
In the ocean, low frequency acoustic waves propagate with low attenuation and cylindrical spreading loss over long-ranges, making them an effective tool for underwater source localization, tomography, and communications. ...
Lossy compression and real-time geovisualization for ultra-low bandwidth telemetry from untethered underwater vehicles
(Massachusetts Institute of Technology, 2008)
Oceanographic applications of robotics are as varied as the undersea environment itself. As underwater robotics moves toward the study of dynamic processes with multiple vehicles, there is an increasing need to distill ...
Sound propagation around underwater seamounts
(Massachusetts Institute of Technology, 2005)
This thesis develops and utilizes a method for analyzing data from the North Pacific Acoustic Laboratory's (NPAL) Basin Acoustic Seamount Scattering Experiment (BASSEX). BASSEX was designed to provide data to support the ...
Applied stochastic Eigen-analysis
(Massachusetts Institute of Technology, 2006)
The first part of the dissertation investigates the application of the theory of large random matrices to high-dimensional inference problems when the samples are drawn from a multivariate normal distribution. A longstanding ...
Large area underwater mosaicing for scientific applications by Oscar Pizarro.
(Massachusetts Institute of Technology, 2003)