System Identification Using Pulse-Frequency Modulated Signals

摘要

Continuous system identification using pulse frequency modulation (PFM) signals was studied. Two possibilities for application of PFM signals in system identification are considered. In accordance with these possibilities either the system is excited by PFM signals or the system output is observed with the help of a pulse-frequency converter. For both of these cases effective computational schemes for estimation of the transfer function and the weighting function are obtained. For the case of the weighting function estimate, the relationship with previously obtained estimates is established. The utility of the suggested estimates is illustrated by computer simulation. The programs are given.