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SEMINAR: Stabilized Frequency Transfer for Radio Astronomy and Space Science Applications

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Today's date is Sunday, November 29, 2020
Stabilized Frequency Transfer for Radio Astronomy and Space Science Applications Other events...
The transmission of high-precision frequency references between remote locations is crucial to a wide range of industrial and scientific applications including precision navigation, geodesy, radio astronomy, comparison of atomic timescales, and tests of General Relativity and variations in fundamental constants. However, over long distances the frequency and phase stability of the transmitted signals can be degraded by environmental disturbances, greatly limiting the science that can be done. Stabilization systems are necessary to compensate for the disturbances and improve the accuracy and precision of the transmitted signals. This talk will give an overview of work undertaken at UWA to develop actively stabilized frequency reference transfer systems to phase-synchronize the widely dispersed antennas of the Square Kilometre Array (SKA) telescope, and to provide a high-precision reference to the Yarragadee Geodetic Observatory as part of UWA’s commitment to the European Space Agency’s Atomic Clock Ensemble in Space (ACES) mission.
Speaker(s) David Gozzard graduated from UWA in 2013 with Bachelors degrees in physics and mechanical engineering. He continued into a PhD under the supervision of Dr Sascha Schediwy and Prof. Mike Tobar in the Department of Physics, working on stabilized photonic signal transmission for the SKA project (as a member of the SKA Signal and Data Transport Consortium) and ACES mission. David completed his PhD in December 2017 and, since October, has continued to work on the SKA and ACES mission as a Research Associate at ICRAR. David will soon be leaving WA to take up a Postdoctoral Fellow position in the Department of Quantum Science at the Australian National University. David is the 2017 WA Premier’s Science Awards ExxonMobil Student Scientist of the Year and is a popular speaker for public outreach.
Location Room 2.15, Physics Building
Contact John Brookes <[email protected]> : 6488 2738
Start Fri, 23 Mar 2018 15:00
End Fri, 23 Mar 2018 16:00
Submitted by John Brookes <[email protected]>
Last Updated Fri, 16 Mar 2018 16:44
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