[Ngspice-users] Instantaneous frequency

[Patrick K. <p....@po...>]

Hi list,

Is there a way of measuring the instantaneous frequency of a signal
over time? Something like the TRIG measurement, but as a waveform, as
if you would call the TRIG measurement repeatedly and concatenated all
results into a waveform. More precisely I am looking for a crossing
function.
Is there a simple way to achieve this?

Kind regards,
Patrick