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.
Results
Showing 1 to 20 of 177 for “"digital data"”.
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Digital data bases on optical videodiscs
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1981.
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Bogota's river basin hydrologic digital data library
… accessible to everyone. The amount of data available is immense, but raw data isolated from an information system could lose its value. Data acquisition is followed by quality controls in order to make it useful for physical or data-driven models. Nonetheless, distribution and …
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Risk-aware navigation for UAV digital data collection
… navigation task for autonomous UAVs to collect digital data in a risky environment. Three problem formulations are proposed according to different real-world situations. First, we focus on uniform probabilistic risk and assume UAV has unlimited amount of energy. With these assumptions, we …
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Hierarchical wavelet-based numerical models for digital data
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1996.
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The authoring of optical videodiscs with digital data
… stores large amounts of visual and aural data. The technology needed to support videodiscs is understood and available. Digital augmentation of the optical videodisc can exploit this technology for data publishing. Not only can this data be used in raw form, it can also reference the video …
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Difficulties with NTSC compatible quadrature digital data transmission
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1989.
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A New Digital Data Acquisition System for Neutron Metrology
… the neutron metrology and spectrometry community digital pulse processing systems are being developed for measurements of Fast neutron fields in a wide variety of contexts, for example at accelerator and medical radiation facilities, around nuclear power plants, in airplanes in flight and space …
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A DIGITAL DATA ACQUISITION SYSTEM FOR INELASTIC ELECTRON TUNNELLING SPECTROSCOPY
A digital inelastic electron tunnelling spectrometer has been designed, constructed and implemented. Full details of hardware software and calibration are presented. The spectrometer has been used in a detailed inelastic electron tunnelling spectroscopy (IETS) study of benzoate anion (C6H5C00) …
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An analog and digital data acquisition system for Non-Intrusive Load Monitoring
… entire concept is predicated on having access to digital samples of the current and voltage signals at the distribution point. This thesis presents a analog to digital converter for this task and a new low-power inductive current sensor for deployment in a standard circuit breaker box. The current …
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Weighting Landsat Digital Data According to Land Cover Emissivity for Surface Temperature Mapping
… problems require efficient and accurate data concerning land use/land cover and temperature gradients for informed decision making. Remotely-sensed data provide a method for acquiring such information in a dependable and efficient manner. Regular data acquisition and a synoptic view make …
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The perception and fears of sharing personal digital data in digital public space
… of personal fears of sharing personal digital data. In it, I explore the fears and growing tensions between the requirements to share personal information while maintaining the need to control and protect personal privacy. The emphasis of this study was to develop research through a …
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Spatial variability of soil and relationship with satellite digital data in eastcentral Illinois
Past studies have suggested that satellite imagery is of little use in large scale soil mapping, because they found few relationships between satellite-derived maps and field soil maps. Rather than evaluate imagery-derived maps by their degree of spatial correspondence with a field soil map, it …
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To and fro : digital data-driven analyses of pedestrian mobility in urban spaces
… and the San Francisco Bay Area, California. The dataset contains the locative traces of recreational and utilitarian pedestrian walking activities which include the GPS and temporal records of individuals. In sum, this dissertation considered over 2.2 million trips from 135,000 people. This …
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A microcomputer-based digital data acquisition controller for a computer aided acoustic imaging system
This thesis describes the design and construction of a microcomputer based controller for an ultrasonic acoustic imaging system. The INTEL 8748 single chip microcomputer was utilized and the associated hardware and software for the system is described in detail. Carefully designed and testing …
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Arguments for and field experiments in democratizing digital data collection : the case of Flocktracker
Data is becoming increasingly relevant to urban planning, serving as a key input for many conceptions of a "smart city." However, most urban data generation results from top-down processes, driven by government agencies or large companies. This provides limited opportunities for citizens to …
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The Impact of the Simulated Digital Data Radio Communication Induced Interference on Voice Radio Communication
… from its present analog structure to a new digital communications architecture, will span a 10-year time frame. Testing to date indicates that the potential for interference from the digital system to the analog system would be critical, especially for General Aviation (GA) aircraft. This …
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A Compatible Modulation Strategy for Embedded Digital Data Streams within High Quality Video Signal Transmissions
… the focus continues to fade more towards fully digital multi-program distribution and ultimately to multimedia solutions. The actual activities throughout Europe and America in launching the Digital Video Broadcasting, DVB and the Advanced Television System Committee, ATSC system, clearly …
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Environmental and Digital Data Analysis of the National Wetlands Inventory (NWI) Landscape Position Classification System
… unit in Hadley, MA has begun to upgrade their digital map database, integrating descriptors for assessment of wetland functions. Updating is conducted manually and some automation is needed to increase production and efficiency. This study assigned landscape position descriptor codes to NWI …
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