29th of June to 3rd of July 2020 in Besançon: European Frequency and Time Seminar

The EFTS is an intensive full-week seminar intended to provide education and training with lectures and laboratory sessions. It targets a broad audience: Engineers, Ph.D. Students, Post-doc Fellows, Young Scientists, Newcomers, etc.

Registrations will open the first working day of February.
Please contact frequency-time-seminar@femto-st.fr for pre-registrations.

More informations here.

Workshop: Time and Money 2020 – 28 janvier 2020 (NYSE)

DLT and Timing 
at the 
New York Stock Exchange
When it comes to financial transactions, time synchronization accuracy of all connected elements in a trading system is a critical, yet difficult, challenge.  Distributed ledger technology (DLT) is transforming trade and trade financing creating disruption in spaces typically occupied by traditional information repository methods and ledgers. The use of DLT brings timing considerations of its own.

Financial industry timing regulations are stringent, mandating that time synchronization be accurate to 100 microseconds.  With the goal of eliminating fraudulent security trades, regulations specifically call for:

  • Accuracy of financial reporting based on proper time
  • Documentation of when a transaction occurred or did not, which helps
    in digital forensics
  • Protection from change in consumer information and/or timing of modifying records

Inaccurate time in an organization’s network, as well as the impact of this error on financial applications, may result in legal action.


DLT networks and their underlying infrastructure are held to the same time synchronization accuracy requirements demanded of financial institutions. This makes precision timing a critical enabler creating a trusted environment for real-time DLT transactions. ATIS’ Time and Money 2020 sheds light on the critical role of timing and synchronization in enabling secure transactions within a DLT environment. Join us to learn about timing’s role in advancing the DLT revolution.

=> informations

Conference: European GNU Radio Days 2020 (22nd and 23rd of June 2020, Poitiers, France)

GNU Radio is an increasingly popular framework for Software Defined
Radio components and Digital Signal Processing prototyping. As such our
goals are as follows:

* Bring together active French and European GNU Radio users, coming
  from a scientific, technical, amateur or hacker background 
* Foster interaction between GNU Radio users Share knowledge about GNU
  Radio development through tutorials, seminars and demos 
* Bridge the gap between technical/engineering and scientific/research 
  points of view on topics related to applied research with GNU Radio. 
  Such topics include: 
    Software Defined Radio, radio prototyping, 
    RF design, 
    RADAR design 
    Global Navgation Satellite Systems (GNSS) and space communications
    Signal processing in embedded systems,
    GNU Radio development environment,
    New platforms

GNU Radio users and developers are invited to present their experiments
and activities. The first day (22nd of June) will be devoted to oral
presentations, posters and demonstrations. The second day (23rd of
June) will be dedicated to tutorials and hands-on sessions.

=>informations

 

Thursday 21st novembre 2019 (Paris) – “Optical atomic clocks: new sensors for monitoring geodynamic processes”

By Pacôme Delva (Observatoire de Paris) et Guillaumle Lion (IPGP Géodésie)

Thursday the 21st of novembre 2019 at 11H00 – Salle 310 – IPGP – ÎLOT CUVIER

Abstract :
The measurement of time has always been closely related to the
observation of the Earth. Today, the best optical atomic frequency
standards can reach inacurracies around 10?18 in terms of relative
frequency. Because time flow is affected by gravity, it means optical
clock comparisons could measure gravity potential differences with an
accuracy of 0.1 m2/s2, which is equivalent to 1-cm in height difference,
opening new fields of fundamental and applied research.
In this talk, we will introduce what is an optical atomic clock and
how remote clock comparisons could help us improve the knowledge of the
Earth’s gravity field. Then, we will present various applications that
could bring the exploitation of clock measurements in geodesy:
determination of the geopotential with high spatial resolution, vertical
reference system, and we will discuss the possible applications
associated to the geodynamic processes related to mass transfers.

20th of December 2019 (Paris) – PhD defense of Nicolas Galland

Nicolas GALLAND will defend his thesis the 20th of December 2019 in Paris Paris, on: “Towards optomechanical systems and high precision measurements with rare-earth doped crystals”, preâred at Institut NEEL and SYRTE under the supervision of Signe Seidelin and Yann Le Coq.

The defense will taker place the 20th décembre à 2pm, in the IAP amphitheatre , at Observatoire de Paris (77 avenue Denfert Rochereau). The defense will be in French.

6th of December 2019 (Paris) – PhD defense of Valentin Cambier

Valentin CAMBIER will defend his PhD thesis the 6th of December 2019 in Paris on: “Mercury optical lattice clock exploiting a 2D-MOT : lifetime of the 3P0 state and frequency measurement” prepared at SYRTE under the direction of Sébastien Bize.

The defense will take place Friday the 6th of December at 2pm in salle Cassini of Observatoire de Paris (77 avenue Denfert Rochereau). The defense will be in French.

9th of December 2019 (Chatillon) – PhD defense of Paul Chapellier

Paul CHAPELLIER will defend his thesis on 9th of December 2019 at 2pm on the subject “Piezoelectric MEMS for Time and Frequency applications”, realized at ONERA under the supervision of Bernard DULMET (FEMTO-ST) and Pierre Lavenus (ONERA/DPHY).

The defense will take place in salle Contensou at the ONERA centre of Châtillon, 29 avenue de la Division Leclerc, 92320 Châtillon
Please contact sylvie.nicolle-douet@onera.fr for the formalities necessary to access the site