%D 2002 %L discovery496 %T Closed loop identification based on quantization %P 319-324 %V 35 %A M Wang %A NF Thornhill %A B Huang %X This paper proposes a new closed-loop identification scheme for a single-input-single-output control loop. It is based upon a quantizer inserted into the feedback path. The quantizer can be used to generate an equivalent persistently exciting signal with which the well known two-stage and/or two-step method can be used directly. Simulation examples and an experimental demonstration are used to illustrate the proposed scheme. %N 1 %J IFAC Proceedings Volumes (IFAC-PapersOnline)