Apparatus and method for optimal estimation of the linear parameters and the nonlinear parameters of a model that describes a transducer

Arrangement for optimal estimation of the parameter P the transducer 1 at least one converter input 7 has, where an electric, acoustic or any other input signal x (t) is supplied to the transducer 1 has at least one transducer output 9 at which an electrical, audible or any other output signal y (t) = y characterized in that the arrangement contains a transformation system 55, having a first transformer input 61 which is connected to the converter input 7 and the input signal x (t) is fed to a second transformer input 57 has connected to the converter output 9, and the output signal y (t ) is supplied, ...