The above image is from the 1987 HP patent 4661767 for the 8510 Vector Network Analyzer. 

In this first set of slides,  uSimmics and Octave are used to simulate a conversion from swept frequency S-Parameter measurements to the time-domain response (in "Low-Pass mode").

This following set of slides illustrates the Joel Dunsmore example of a filter using the Bandpass Mode time domain transform to observe the resonators separated by time.