CentraleSupélec

Des formations d’excellence de niveau international

Équipe Systèmes Analogiques Avancées

 

ANALOG DESIGN TO DEAL WITH THE INTERACTIONS BETWEEN ELECTRONIC SYSTEMS AND THE PHYSICAL WORLD AROUND US

Advances in scientific instruments, industrial and consumer products have been closely linked to faster, better and cheaper electronic systems. Unmanned Aerial Vehicles (UAVs), self-driving cars, smart buildings are examples of what becomes possible through embedded electronics. However, electronic systems carry out their computing tasks within an abstract, digital world.

The interaction between this ideal landscape of ones and zeros and the outside world (ours), the analog world, is handled by analog electronics. The focus of the Advanced Analog Systems Group is to study the interaction of electronic systems with the outside world through modelling and simulation in order to develop innovative solutions for difficult problems such as heat, electromagnetic emissions compliance, actuation, and data acquisition.

High-level research on all aspects of analog systems, in partnership with leading companies and CentraleSupélec researchers allows the SANA Group to contribute to the advancement of knowledge of these issues for a wide range of applications.

To achieve this, the research activities of the group are carried out around four axis: Multi-physics systems modelling and optimization, communication systems, imaging and analog to digital converters. This work is carried out in close collaboration with our industrial partners, with the support of members of the GeePs (CNRS UMR8507) ECo2 pole and of the L2S (CNRS UMR 8506) Networks & Telecommunications pole.

Multi-physics systems modelling and optimization has targeted both large (automotive exhaust gas control) and vanishingly small systems (MEMS pressure sensors for aerospace). The objectives are a better understanding of complex phenomena and their interactions through experimentation, mathematical modelling and numerical simulation. We have developed proof-of-concept tools and prototypes. For example, we have developed mathematical models describing accurately non-linear modes in resonant micro-machined structures. Our research has resulted in improved performance and optimized devices.

Communication systems include testability of software defined radios for tactical communications, electromagnetic compatibility (EMC) of equipment installed on a naval platform and power line communication (PLC) systems for aircrafts. As an example of our scope, we have proposed a new way to integrate built-in self-test (BIST) into flexible SDR radio units, at low cost and minimal impact on the normal operation. Another example is the development of a PLC for large aircraft, where a combined know-how on EMC effects, analog electronics and OFDM modulation must be applied to obtain a feasible solution.

Research conducted in imaging systems domain targets the development of smart imaging systems. Our objective is to bring feature recognition and image processing capabilities as close to the focal plane as possible. Our approach is twofold: a digital backend using specialized processing units coupled to an analog frontend driving each pixel. To bridge the two parts we are also developing a high-resolution column-parallel analog-to digital converter. With our architecture, we intend to achieve real-time feature extraction of the video stream.

The development of analog to digital converter (ADC) circuits is a transversal axis across all domains and applications of electronic systems, since it’s through these that all data acquisition occurs. Accordingly, our team develops three different kinds of circuits: very high speed time-interleaved ADCs, moderate speed high-resolution hybrid ADCs (for high-temperature automotive systems) and high-resolution calibrated column-parallel ADCs (for imaging systems).

 

Highlights 2015
 

  • New industrial partner for development of high-temperature electronics for automotive systems.
  • Two new international cooperation research programs (UMONS and HKUST)
  • Graduation of the first PhD “fully minted” within the team (E. Dogaru)
  • Start of a new research axis, High Performance Computing using Hardware Acceleration

 

Key numbers 2015
 

  • Full-time researchers : 1
  • PhD students : 8
  • Post-Doc : 1

     

Académics partners

  • UFRJ
  • CERN
  • UMONS
  • HKUST

 

Industrial Partners

  • Thales
  • EFI Automotive
  • Melexis
  • STMicroelectronics
  • CEA

 

Contact

Directeur : Filipe Vinci dos Santos

Tél : +33 (0)1 69 85 13 94
Fax : +33 (0)1 69 85 13 99

Email : filipe.vinci@centralesupelec.fr