Results 231 to 240 of about 5,941,522 (258)
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Phase-stable fiber optic systems for reference RF signals
SPIE Proceedings, 1994Transmission of reference frequency signals over the distance from hundred to thousand meters is necessary for different extended systems, for instance, in radioastronomy radiolocation and other fields . And transmission line is required not to bring out phase fluctuations in signal.
Oleg I. Kotov +2 more
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2012 IEEE/MTT-S International Microwave Symposium Digest, 2012
Stable microwave reference signal transfer systems are required in communication systems, very long baseline interferometer (VLBI) radio astronomy applications, particle accelerators and metrologies. Radio over fiber (RoF) technique is one of candidates which realize precise microwave dissemination without degradation of stability.
Tomohiro Akiyama +4 more
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Stable microwave reference signal transfer systems are required in communication systems, very long baseline interferometer (VLBI) radio astronomy applications, particle accelerators and metrologies. Radio over fiber (RoF) technique is one of candidates which realize precise microwave dissemination without degradation of stability.
Tomohiro Akiyama +4 more
openaire +1 more source
81st ARFTG Microwave Measurement Conference, 2013
A new approach is presented that allows a Vector Network Analyzer to be operated as a Large Signal Network Analyzer without the need for a harmonic phase reference generator. The mode of operation exploits the architecture of a Rohde and Schwarz ZVA-67, which incorporates internal signal and local oscillator sources based on direct digital synthesis [1]
A. Aldoumani +5 more
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A new approach is presented that allows a Vector Network Analyzer to be operated as a Large Signal Network Analyzer without the need for a harmonic phase reference generator. The mode of operation exploits the architecture of a Rohde and Schwarz ZVA-67, which incorporates internal signal and local oscillator sources based on direct digital synthesis [1]
A. Aldoumani +5 more
openaire +1 more source
Transmission of Reference RF Signals Through Optical Fiber at XFEL/SPring-8
2010Proceedings of the 1st International Particle Accelerator Conference, IPAC2010, Kyoto ...
Ohshima, Takashi +4 more
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Microwave and Optical Technology Letters
ABSTRACTIn this article, a phase‐stable RF‐over‐Fiber (RFoF) link for PLL reference signal distribution and frequency conversion over an X‐band active electronically scanned antenna (AESA) made of multiple subarrays is studied. This RFoF scheme is proposed as an alternative to the traditional coaxial cable approach to provide easier integration in ...
Aurélien Ayissi Manga +5 more
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ABSTRACTIn this article, a phase‐stable RF‐over‐Fiber (RFoF) link for PLL reference signal distribution and frequency conversion over an X‐band active electronically scanned antenna (AESA) made of multiple subarrays is studied. This RFoF scheme is proposed as an alternative to the traditional coaxial cable approach to provide easier integration in ...
Aurélien Ayissi Manga +5 more
openaire +1 more source
An RF reference signal distribution system for suppressing phase fluctuations during transmission
2022 IEEE International Symposium on Phased Array Systems & Technology (PAST), 2022Kae Morita +4 more
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ELECTRONIC DEVICE FOR ADJUSTING FREQUENCY OF REFERENCE SIGNAL USED FOR GENERATION OF RF SIGNAL
2023LEE YOUSUNG, NA HYOSEOK, YANG DONGIL
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A Filter-Less Time-Domain Method for Reference Signal Extraction in Shunt Active Power Filters
Energies, 2022Mohamad Tarnini +2 more
exaly
Signal detection with noisy reference for passive sensing
Signal Processing, 2015Guolong Cui, Hongbin Li
exaly
A comparative study and improvement of two ICA using reference signal methods
Neurocomputing, 2014Jianxun Mi
exaly