This report concerns itself with the measurement of the open loop parameters of a certain type of adaptive system. The adaptive system presented is a unity feedback control system in which the Analog Computer is utilized in measurement and control.nIt is assumed that the controlled process has a fixed structure with variable parameters, i.e. it can be represented by a constant number of poles and zeros, which although they occupy positions in the S-plane, may vary with time. The frequency independent gain of the foward transmission is also variable. Analog Computer operation in the real time domain facilitates the continuous or intermittent identification of the foward gain and the poles and zeros of the controlled process
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