2.3.3   Correction using ratio of amplitudes

 

Figure 13: Correction to ToT using Ppeak

 

In this method correction to measured time is applied using the power of returned signal.  The basic idea is  to bring the time of travel to the level of step pulse, i.e., where for step pulse is being measured.  The correction to be applied in measured time is given by tc as shown in Figure 13: