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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

TRANSITION FROM ANALOG TO DIGITAL RECORDERS FOR TELEMETRY AT THE WESTERN RANGE

Hedricks, Michael J., Sussex, Jeff, Streich, Ronald G. 10 1900 (has links)
ITC/USA 2006 Conference Proceedings / The Forty-Second Annual International Telemetering Conference and Technical Exhibition / October 23-26, 2006 / Town and Country Resort & Convention Center, San Diego, California / The transition of PCM recording from analog to digital recorders was completed at many test ranges more than a decade ago as marked by delivery of data on S-VHS tape, CD-ROM, DVD, ZIP disc, JAZ disc, 8mm tape and DLT tape for low rate data and D-1 cassettes for high rate data. Data then quickly began distribution via the internet and other networks. Analog recorders have remained a necessary legacy for the long transition to convert from analog to digital (PCM) data transmission from the test vehicles. However, the new digital recorder capabilities have removed this requirement to convert the transmissions from the test vehicle. Analog signal and predetection recording on digital recorders has been successfully demonstrated at costs below the existing analog recorders. Application of new techniques in a methodical transition program to the new digital recorders has proven the many benefits of recording wider bandwidths with excellent repeatability. Repeatability issues are primarily in the very low error sources of the processing system because the major analog error sources of the analog tape recorders, analog time code readers, analog demodulators, etc have been greatly reduced. This paper provides test results of recording higher signal rates and bandwidths of the new programs and describes the techniques and implementation through procedures of the Western Range transition from analog to digital recorders. Surprising results show predetection and analog signal recording costs are nearly the same as PCM recording costs due to the price of deliverable media with respect to mission recording requirements.
2

A NEW GENERATION OF DATA RECORDERS FOR REMOTE SENSING GROUND STATIONS

Kayes, Edwin 11 1900 (has links)
International Telemetering Conference Proceedings / October 30-November 02, 1995 / Riviera Hotel, Las Vegas, Nevada / Magnetic tape is the primary medium used to capture and store unprocessed data from remote sensing satellites. Recent advances in digital cassette recording technology have resulted in the introduction of a range of data recorders which are equally at home working alongside conventional recorders or as part of more advanced data capture strategies. This paper shows how users are taking advantage of the convenience, economy and efficiency of this new generation of cassette-based equipment in a range of practical applications.
3

A DESIGN FOR A 10.4 GIGABIT/SECOND SOLID-STATE DATA RECORDER

Wise, Richard J. Jr 10 1900 (has links)
International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada / A need has been identified in the Test and Evaluation (T&E) and tactical aircraft communities for a ruggedized high-speed instrumentation data recorder to complement the ever-increasing number of high frame-rate digital cameras and sensors. High-speed digital camera manufacturers are entering this market in order to provide adequate recording capability for their own cameras. This paper discusses a Solid-State Data Recorder (SSDR) for use in Imaging and High-Speed Sensor Data Aquisition applications. The SSDR is capable of a 10.4 Gb/sec sustained, 16Gb/sec burst, input data rate via a proprietary 32-channel-by-10-bit generic high-speed parallel interface, a massively-parallel 256-bit bus architecture, and unique memory packaging design. A 32-bit PCIbus control/archive and dedicated DCRsi™ interface are also employed, allowing data archiving to standard high-speed interfaces (SCSI, Fiber-Channel, USB, etc.) and DCRsi™-compatible tape recorders.
4

Fit for purpose? : a metascientific analysis of metabolomics data in public repositories

Spicer, Rachel January 2019 (has links)
Metabolomics is the study of metabolites and metabolic processes. Due to the diversity of structures and polarities of metabolites, no single analytical technique is able to measure the entire metabolome - instead a varied set of experimental designs and instrumental technologies are used to measure specific portions. This has led to the development of many distinct data analysis and processing methods and software. There is hope that metabolomics can be utilized for clinical applications, in toxicology and to measure the exposome. However, for these applications to be realised data must be high quality, sufficiently standardised and annotated, and FAIR (Findable, Accessible, Interoperable and Reproducible). For this purpose, it is also important that standardised, FAIR software workflows are available. There has also recently been much concern over the reproducibility of scientific research, which FAIR and open data, and workflows can help to address. To this end, this thesis aims to assess current practices and standards of sharing data within the field of metabolomics, using metascientific approaches. The types of functions of software for processing and analysing metabolomics data is also assessed. Reporting standards are designed to ensure that the minimum information required to un- derstand and interpret the results of analysis are reported. However, poor reporting standards are ignored and not complied with. Compliance to the biological context Metabolomics Standards Initiative (MSI) guidelines was examined, in order to investigate their timeliness. The state of open data within the metabolomics community was examined by investigating how much publicly available metabolomics data there is and where has it been deposited. To explore whether journal data sharing policies are driving open metabolomics data, which journals publish articles that have their underlying data made open was also examined. However, open data alone is not inherently useful: if data is incomplete, lacking in quality or missing crucial metadata, it is not valuable. Conversely, if data are reused, this can demonstrate the worth of public data archiving. Levels of reuse of public metabolomics data were therefore examined. With greater than 250 software tools specific for metabolomics, practitioners are faced with a daunting task to select the best tools for data collection and analysis. To help educate researchers about what software is available, a taxonomy of metabolomics software tools and a GitHub pages wiki, which provides extensive details about all included software, have been developed.
5

Řízení odprášení tavicích pecí na recyklaci hliníkového odpadu / Controling the dust exhaust of smeltery for recyclation of aluminum waste

Jakubský, Ondřej January 2009 (has links)
The work deals with controlling and visualizing technology of dust exhaust of smeltery for recyclation of aluminum waste. In the first part of the work are analyzed the different ways of automatic control. Based on the analysis is proposed control system configuration, algorithm of control, communication interfaces and sensors of alarm, measurement and regulation. The second part deals with visualization and remote administration of control system. On the basis of selection for the visualization software is designed and implemented a system that provides visualization of technology, the archiving of measured operating values, events and errors.
6

Systém pro správu archivovaných dat / Archived Data Management System

Havlíček, Martin January 2013 (has links)
The goal of this work was to research the available database systems and propose a suitable database system for data archiving. Prepare the communication and processing of data between the database and delivered application Profisignal which processes the measured data from all sensors. Design architecture for the database, the storage of measured data and calculation reports on that data. At the end design the web user interface. The result of my work demonstrate possible ways of archiving data in ORACLE database, examples of calculation the reports and sample of web application, that presented the measured data.
7

Systémy monitorování kvality elektrické energie / Distributed power quality monitoring systems

Pithart, Jan January 2008 (has links)
Subject of this master’s thesis deals with the issues parameters of electric power and some possibility of measuring with focusing on norm requiring parameters. There are some distributed power quality monitoring systems described, which are available. The following chapter discusses the suggestion and implementation of the low-cost monitor with remote control for low-voltage networks. The thesis also concerns the using MySQL database for archiving measuring values and implementation of web applications for on-line presentation of the measured values.

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