METHOD AND DEVICE FOR ESTIMATING THE REAL AND IMAGINARY PARTS OF THE FREQUENCY RESPONSE

摘要

A method for estimating the real and imaginary parts of the frequency response for a physical system, the method comprising the steps of: acquiring values of the amplitude response of the system for a number of geometrically spaced frequencies; calculating the real part of the frequency response from the acquired values of the amplitude response by a first digital filtering; and calculating the imaginary part of the frequency response from the acquired values of the amplitude response by a second digital filtering. A device for carrying out the method is also proposed.