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Digital signal acquisition architectures and computed controlled systems


Programme (detailed contents):

Lecture is divided in three complementary axes:

  • Electronics design: different techniques used in analog and digital converters, with their associated architectures are detailed. Companding techniques are presented (A–law). The complete chain gauging techniques are studied based on the signal noise ratio extraction.
  • Command design: discrete time linear models: input/output model, state space models. Sampling with zero holder. Stability criteria. How to obtain a discrete time controller from a continuous time one. RST controller: Regulation and tracking. Relation with state space methods.
  • Project: the purpose is to cover several items such as treating an analogue sensor, controlling an A/N converter, the necessary digital processing (minimal control law) and finally the N/A conversion to drive the actuator. The whole chain will be operated by a microcontroller.


At the end of this module, the student will have understood and be able to explain (main concepts):


The complete modelling from sensor to actuator is presented, associated with digital control technics. A specific labwork deal with the implementation of a complete chain of acquisition and digital processing in order to carry out the control of an actuator.

Form of assessment

The evaluation of outcome prior learning is made as a continuous training during the semester. According ot the teaching, the assessment will be different: as a written exam, an oral exam, a record, a written report, peers review...