MEASURING VOLTERRA KERNELS .3. HOW TO ESTIMATE THE HIGHEST SIGNIFICANT ORDER

Efficient methods were previously given for measuring the frequency-domain transfer functions, namely Volterra kernels of weakly non-linear systems. The success of these methods depends crucially on the assumption that the highest significant order of the system under test is known. Practical algorithms for determining the highest significant order of non-linear systems are presented in this paper. Our algorithm can be used not only to validate the measurement results obtained by the methods presented earlier but is also capable of determining whether a Volterra series representation actually exists for the system under test.