Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Distributed sensor networks"”.
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Collaborative Estimation in Distributed Sensor Networks
<p>Networks of smart ultra-portable devices are already indispensable in our lives, augmenting our senses and connecting our lives through real time processing and communication of sensory (e.g., audio, video, location) inputs. Though usually hidden from the user's sight, the engineering of these …
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Pushpin computing : a platform for distributed sensor networks
… implemented for modeling, testing, and deploying distributed peer-to-peer sensor networks comprised of many identical nodes. Each node possesses the tangible affordances of a commonplace pushpin to meet ease-of-use and power considerations. The sensing, computational, and communication abilities …
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Energy-Efficient Measurement of Coverage in Distributed Sensor Networks
Large-scale sensor networks have become a reality due to recent developments in sensor node hardware and algorithms. Sensor networks can provide real-time information based on detection and tracking. This information cannot be reliable if little is known about the sensor coverage of the network, …
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Optical Communication Systems for Smart Dust
… mote to perform integrated, massively distributed sensor networks. The suitable passive optical and fiber-optic communication systems will be selected for the further performance design and analysis based on the requirements for implementing these systems. Based on the communication …
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Parasitic mobility for sensate media
Distributed sensor networks offer many new capabilities for monitoring environments with applicability to medical, industrial, military, anthropological, and experiential fields. By making such systems mobile, we increase the application-space for the distributed sensor network mainly by providing …
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Flexible-stretchable woven electronic textile system : a tailored multi-modal bodysuit for spatiotemporal physiological and physical activity monitoring
… introduce a new platform of flexible-stretchable distributed sensor networks that can be embedded into a digitally-knit textile. It can be customized for various forms and functions using standard, accessible, and low-cost manufacturing approach. Rigorous experimental and theoretical …
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Audio-based localisation for ubiquitous sensor networks
… and passively detected signals using pervasive, distributed networks of devices, and investigates the combination of existing resources available in personal electronics to build a digital sensing 'commons'. By connecting personal resources with those of the people nearby, tasks can be achieved, …
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Microphone array processing for augmented listening
… arrays, including novel wearable devices and distributed sensor networks, for augmented listening systems. Perceptually transparent space-time remixing filters can apply separate processing to each sound source to modify the auditory scene perceived by a listener. The design parameters and …
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Time keeping in myriad networks : theories, solutions and applications
Distributed sensor networks make extensive use of a common time reference. In this work we address the problem of time dissemination in a packet switched network when the nodes are NOT generally all connected to an accurate, external time reference source. We thoroughly analyze Network Time …
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A Rate of Convergence for Learning Theory with Consensus
… study of estimation and control strategies for distributed sensor networks. Each node i for i = 1, . . . , n of the sensor network collects independent and identically distributed local measurements {z i} := {z i j}j∈N := {(x i j , yi j )}j∈N ⊆ X × Y := Z that are generated by the probability …
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Probabilistic models for multi-view semi-supervised learning and coding
… problem of classification from multiple noisy sensors or modalities. Examples include speech and gesture interfaces and multi-camera distributed sensor networks. Reliable recognition in such settings hinges upon the ability to learn accurate classification models in the face of limited …
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Modeling and estimation in Gaussian graphical models : maximum-entropy methods and walk-sum analysis
… such as computer vision, image processing, and distributed sensor networks. In this thesis we study two central signal processing problems involving Gaussian graphical models, namely modeling and estimation. The modeling problem involves learning a sparse graphical model approximation to a …
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Feasibility study of long-life micro fuel cell power supply for sensor networks for space and terrestrial applications
Sensor networks used for activities like border security, search and rescue, planetary exploration, commonly operate in harsh environments for long durations, where human supervision is minimal. A major challenge confronting such devices is providing adequate and reliable power supply required for …
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Contact region fidelity, sensitivity, and control in roll-based soft lithography
… economically, including flexible displays, distributed sensor networks, transparent conductors, and bio-inspired surfaces. Achieving and maintaining collapse-free contact of the soft stamp features is a necessary condition for printing. In the first part of the thesis, stamp behavior is …
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Spectral diffusion map approach for structural health monitoring of wind turbine blades using distributed sensors
<p>Distributed Sensor Networks (DSN) has emerged as a sensing paradigms in the structural engineering field due to the application of Structural Health Monitoring (SHM) for large-scale structures which results in accurately diagnosing the health of structures and enhancing the reliability and …
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Distributed Algorithms for Tasking Large Sensor Networks
… advent of compact and inexpensive wireless micro-sensor devices. A large network of such sensor nodes capable of communicating with each other provides significant new capabilities for automatically collecting and analyzing data from physical environments. A notable feature of these networks is …