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GNSS Hardware-In-The-Loop Formation and Tracking Control
(Virginia Tech, 2016-06-20)
Formation and tracking control are critical for of today's vehicle applications in and this will be true for future vehicle technologies as well. Although the general function of these controls is for data collection and ...
Vision-Based Self-Motion Estimation in a Fixed-Wing Aerial Vehicle
(Virginia Tech, 2006-01-20)
<p>This paper describes a complete algorithm to estimate the motion of a fixed-wing aircraft
given a series of digitized flight images. The algorithm was designed for fixed-wing
aircraft because carefully procured ...
Robust speech filtering in impulsive noise environments
(Virginia Tech, 1999-12-13)
This thesis presents a new robust filtering
technique that suppresses impulsive noise in
speech signals. The method makes use of
Projection Statistics based on medians to detect
segments of speech with impulses. The ...
Improving Performance of Highly-Programmable Concurrent Applications by Leveraging Parallel Nesting and Weaker Isolation Levels
(Virginia Tech, 2015-07-15)
The recent development of multi-core computer architectures has largely affected the creation of everyday applications, requiring the adoption of concurrent programming to significantly utilize the divided processing power ...
Position Sensorless Implementation for a Linear Switched Reluctance Machine
(Virginia Tech, 2000-08-09)
The development of an add-on sensorless position estimator for a 4.8 m Linear Switched Reluctance Machine (LSRM) with minimal modifications to the transducer-based controller is investigated for the first time in this ...
Designing and Fabricating MEMS Cantilever Switches
(Virginia Tech, 2016-09-23)
In this thesis, MEMS switches actuated using electrostatic actuation is explored. MEMS switches that are lateral switches and clamped-clamped switches are designed, fabricated, and tested in this thesis. This thesis ...
High Efficiency SEPIC Converter For High Brightness Light Emitting Diodes (LEDs) System
(Virginia Tech, 2012-07-02)
ABSTRACT
This thesis presents an investigation into the characteristics of and driving methods for light emitting diode (LED) lamp system. A comprehensive overview on the lighting development is proposed. The characteristic ...
Orchestra Framework: Protocol Design for Ad Hoc and Delay Tolerant Networks using Genetic Algorithms
(Virginia Tech, 2011-06-20)
Protocol designs targeted at a specific network scenario or performance metric appear promising on paper, but the complexity and cost of implementing and tuning a routing protocol from scratch presents a major bottleneck ...
Interactively Guiding Semi-Supervised Clustering via Attribute-based Explanations
(Virginia Tech, 2015-07-01)
Unsupervised image clustering is a challenging and often ill-posed problem. Existing image descriptors fail to capture the clustering criterion well, and more importantly, the criterion itself may depend on (unknown) user ...
Reconfigurable SCA System Development Using Encapsulated Waveform Applications and Components
(Virginia Tech, 2008-03-14)
The Software Communications Architecture (SCA) is a standard for software defined radios (SDR) designed in part to promote code reuse for long-term development. With the emergence of adaptive/cognitive radios, new SDRs ...