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Now showing items 31-40 of 50
A hierarchical, multiscale texture segmentation algorithm for real-world scenes.
(2001)
We also develop a way of objectively evaluating texture segmentation algorithms on natural and synthetic texture patches. Finally, our multiscale segmentation approach is demonstrated on several families of real-world ...
PHYSICAL TOPOLOGY DESIGN AND ROUTING ALGORITHMS FOR DEGREE-CONSTRAINED FSO MESH NETWORKS
(2008)
Free-space optical (FSO) mesh networks are emerging as broadband communication networks because of their high bandwidth (up to Gbps), low cost, and easy installation. However, there are two existing problems in the deployment ...
A free-space optical communications link to an unmanned aerial vehicle.
(2005)
Free-space optics (FSO) is an optical communications technology in which information is transmitted through the atmosphere on modulated optical beams. At the time of the development of FSO, it was envisioned to be a possible ...
Feasibility of a Cognitive Extension to Existing 802.11b Wireless Devices
(2009)
Cognitive radio presents a means of altering the communication method of a wireless device based on channel conditions and the intended receiving device. However, the design of such a radio is very complicated as it must ...
Low-density parity-check coding for high-density magnetic recording systems.
(2004)
Our strategy is to combine advanced signal processing techniques, the core of which is soft-decision iterative channel detection, with powerful low-density parity-check (LDPC) coding techniques.
OBSERVATIONAL STUDY OF RAIN MICROPHYSICS AND RAIN RETRIEVAL USING POLARIMETRIC RADAR DATA
(2009)
Accurate quantitative precipitation estimation (QPE) and quantitative precipitation forecasts (QPF) require accurate microphysical parameterization/modeling of the precipitation. This study presents the modeling of rain ...
Applications of iterative decoding to magnetic recording channels.
(2002)
Finally, Q-ary LDPC (Q-LDPC) codes are considered for MRCs. Belief propagation decoding for binary LDPC codes is extended to Q-LDPC codes and a reduced-complexity decoding algorithm for Q-LDPC codes is developed. Q-LDPC ...
OPTOELECTRONIC THREE-DIMENSIONAL TRACKING SYSTEM FOR COLLISION RISK MODEL
(2009)
The purpose of this dissertation is to develop a new, novel and low cost three-dimensional tracking system that can produce a Time and Space Position Information (TSPI) database for developing an FAA Collision Risk Model ...
An optimally well-localized multi-channel parallel perfect reconstruction filter bank.
(2003)
Joint uncertainty for the overall L-channel, one-dimensional, parallel filter bank is quantified by a metric which is a weighted sum of the time and frequency localizations of the individual filters. Evidence is presented ...
Coverage issues in wireless sensor networks.
(2006)
A fundamental issue in the deployment of a large scale Wireless Sensor Network (WSN) is the ability of the network to cover the region of interest. While it is important to know if the region is covered by the deployed ...