National Repository of Grey Literature 13 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
Maintaining the National Time and Frequency Standard
Čermák, Jan ; Čemusová, Blanka ; Kuna, Alexander ; Pánek, Petr ; Šojdr, Ludvík ; Klimeš, Pavel
This final report gives a summary of the results obtained in time and frequency metrology at the Laboratory of the National Time and Frequency Standard at the Institute of Photonics and Electronics within the Project II/2/07 of the Program of Metreology Development.
Control system for the furmance Heat Flux is described
Kostka, František ; Zavadil, Jiří ; Zelinka, Jiří ; Starý, Robert ; Houška, Zdeněk ; Krechler, Jindřich
The control system for the furnace Heat Flux is used for the temperature control of two volumes furnace and for the measuring of temperature difference between this two volumes
2007 Program of Metrology Development. Progress Report on Project III/13/07 "Development of Time and Frequency Calibrations"
Čermák, Jan ; Čemusová, Blanka ; Šojdr, Ludvík ; Kuna, Alexander ; Pánek, Petr
This progress report gives a summary of the results obtained in time and frequency calibrations at the Laboratory of the National Time and Frequency Standard at the Institute of Photonics and Electronics within the Project III/13/07 of the Program of Metrology Development in the first half of 2007. The results concern a) calibration of GPS disciplined time and frequency standards, b) background instability of the measurement system based on dual-mixer time-difference multiplication, c) data processing of the GPS time transfer using all-in-view satellites.
Program of Metrology Development in 2007. Progress Report on Project II/2/07 "Operation of the National Time and Frequency Standard"
Čermák, Jan ; Čemusová, Blanka ; Šojdr, Ludvík ; Kuna, Alexander ; Pánek, Petr
This progress report gives a summary of the results obtained in time and frequency metrology at the Laboratory of the National Time and Frequency Standard at the Institute of Photonics and Electronics within the Project II/2/07 of the Program of Metrology Development in the first half of 2007.
Wideband current convertor for Fourier transform interferometer
Zelinka, Jiří
The reserach report describes low current - voltage wide band converter. The report includes details about the construction of the instrument, describes its function, methods and questions concerning its design. The converter processes the current signal of photodetectors used with the Fourier transformed - photoluminescence interferometer.
Program of Metrology Development in 2006 Final report on Project II/2/06: Maintaining the National Time and Frequency Standard
Čermák, Jan ; Čemusová, Blanka ; Kuna, Alexander ; Šojdr, Ludvík ; Klimeš, Pavel ; Pánek, Petr
This report gives a summary of the results obtained in conjuction with maintaining the National Time and Frequency Standard at the Institute of Radio Engineering and Electronics within the II/2/06 Project of the Program of Metrology Development in the year of 2006.
Program of Metrology Development in 2006 Final report on Project III/13/06: Development of the National Time and Frequency Standard
Čermák, Jan ; Čemusová, Blanka ; Šojdr, Ludvík ; Kuna, Alexander ; Pánek, Petr
This report gives a summary of the results obtained in the Laboratory of the National Time and Frequency Standard at the Institute of Radio Engineering and Electronics within the III/13/06 Project of the Program of Metrology Development in the year 2006.
Control system for laser topograph
Kostka, František ; Žďánský, Karel ; Starý, Robert ; Šmíd, A. ; Krechler, Jindřich
The goal of the laser-topograph control systems is the measured sample positions control in the perpendicular plane to the direction of the laser beam and data sampling from lock-in-amplifier. The lock-in-amplifier is detecting the secondary luminescence light from the measured sample.
Some specific problems of ultrawideband wireless systems
Ďurovič, Svetozár
The paper is devoted to some selected problems, specific for the ultrawideband technology. First at all we are introducing the work of ITU-R on harmonising the new technology with the existing radiocommunication systems. The we deal with power utilisation of the various PDS masks and with the existence of discrete spectral components in emitteed signals. The report try to collect contemporary state of art and comment the situation by implementation UWB systems.

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