All news

• Probing space-time by combining cold atom clocks, laser pulses and a satellite
• French metrology researchers to make key contribution to CPEM 2010
• EMRP: €200 million contract signed with the European Commission
• The LNE awards its first research prize
• LNE and KRISS (Korea) sign MoU for cooperation in the chemistry field
• LNE, PTB and Inmetro sign MoU for cooperation in metrology of biofuels
• Green light for EURAMET from European Parliament to manage €200 million EMRP programme

More news

A force for progress

Working together for a changing world, a key priority for France's metrology network.

Organization, teams, projects and perspectives of the French metrology network.

Consult our brochure (pdf - 2 Mo)

Metrology Events

June 13-18, 2010 - KRISS / Daejon Beach - South Korea
CPEM 2010 : Conference on Precision Electromagnetic Measurements

July 5-6, 2010 - LNE / Paris - France
EMRP, Partnering meeting : environment

July 7-8, 2010- LNE / Paris - France
EMRP, Partnering meeting : industry

Special feature : Metrology of the waveform of complex dynamic signals

Digital technologies used in telecommunications (WPAN*, WLAN*, WMAN*, WWAN* and DSL* networks, satellites, etc.) and in instrumentation are developing fast. The main trend today in telecommunications is towards systems operating in ever higher bandwidths and using modulated radio frequency signals with a complex waveform. This raises the problem of calibrating the waveform of these complex dynamic signals and ensuring their traceability to the International System of Units (SI). A number of different instruments are needed to generate, obtain and process the signals: modulated radio frequency sources, random waveform generators, broadband digital oscilloscopes, spectrum analysers, non-linear vectorial network analysers, etc. At present these instruments are not systematically calibrated in France.

Metrology of the waveform of complex dynamic signals (pdf - 314 Ko)