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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

Key Components in a Networked Data Acquisition System

Corry, Diarmuid 10 1900 (has links)
ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California / With the growing interest in networked data acquisition there has been a lot of focus on networked data acquisition systems. However, the requirements of a flight test instrumentation system go beyond networked DAU's. For example, a FTI network fabric has particular requirements for switches, time grandmasters, recorders, data servers and network terminals to the ground. This paper discusses these components and how they inter-operate in a single, fully networked system and discusses some FTI oriented requirements for same. Where relevant, we discuss the results of some experiments with network latencies; packet losses etc. and discuss some enhancements that can contribute to improved efficiency for flight test programs.
2

Synchronizing IP audio devices to GNSS

Arvidsson, Per Anders January 2024 (has links)
This study investigates the possible use of GNSS synchronized PTP grandmasters as a general method for synchronizing IP audio equipment. Two relatively low cost GNSS synchronized PTP grandmaster clocks were built and tested in various real world scenarios. Low latency audio streams were sent over internet between GNSS synchronized audio devices via the protocol SRT, Secure Reliable Transport, and the result was compared to using the commercially available service Jamkazam. It was found that the solution with distributed GNSS synchronized IP audio devices worked well over both LAN and WAN, but the specific SRT solution tested was not suited for really low latency usage like NMP, Networked Music Performance. Further studies are needed to find alternate SRT solutions or other protocols for use when very low latency performance is needed. It was also found that the lowest latency possible was not the most desirable latency when used for monitoring mixes in an NMP context. A latency of 15-20 ms was generally the most preferred, indicating monitor mixes for IEM, In Ear Monitoring, might benefit from introducing delays in the signal chain. More studies are needed to investigate this further.
3

Život a dílo velmistra Vlasáka O.Cr. (1867-1958) / The Life and Works of Grandmaster Vlasák, O.Cr. (1867-1958)

Kučerka, David January 2019 (has links)
This thesis The Life and Works of Grandmaster Vlasák O.Cr. (1867 - 1958) with the life of The Military Order Crucifers with the Red Star, ThDr. Josef Vlasák O.Cr., and its action in the Order. His work is se the context of the historical event, which was accompanied by him in his difficult aktivity, and which had to deal: the firs world war, the first land reform, the second world war, the second land reform, the advent of comunism and dissoluction of the Order. Other chapters are dedicated to J. Vlasák, its meaning and importance from the Catholic Church and for czechoslovac society. The information is drawn from the available nad archoval sources.

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