Hello everybody I started recently working on an engineering problem that requires as a first step, the identification of the system. I already have a model which is a set of differential and algerbraic equations. Unfortunatelly, the system is a parameter varying one, and the aime is to identify these parameters. Taking in consideration that i have input and output measurements, and about 20 parameter to identify. Does any one have an idea about an identification algorithm that can be used for such problem? Regards.