Gevers, MichelBazanella, AlexMiskovic, Ljubisa2009-01-132009-01-132009-01-13200710.1007/978-3-540-73570-0_13https://infoscience.epfl.ch/handle/20.500.14299/33593This chapter takes a new look at the concept of identifiability and of informative experiments for linear time-invariant systems, both in open-loop and in closed-loop identification. Some readers might think that everything has been said and written about these concepts, which were much studied all through the 1970’s. We shared the same view . . . until recently.identifiabilityinformative experimentsclosed-loop identificationtext::book/monograph::book part or chapter