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Pulse generator de-embedding filter #498

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azonenberg opened this issue Jun 11, 2021 · 2 comments
Open

Pulse generator de-embedding filter #498

azonenberg opened this issue Jun 11, 2021 · 2 comments
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@azonenberg
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Given a memory trace of a pulse generator's output, model it as an ideal unit step followed by an unknown channel and compute the S21 response of that channel (to be displayed or exported to a file).
@azonenberg azonenberg added the filter Filter graph blocks label Jun 11, 2021
@someone--else
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In theory, it should also be possible to apply standard VNA calibration techniques (SOLT/TRL etc) to TDR/TDT traces as well, thus calibrating the step generator/scope frequency response details out. This would have the advantage of not assuming step to be ideal and also extending frequency response beyond step generator/scope -3db bandwidth (at the expense of some dynamic range)

@someone--else
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(And the simplest version of TRL cal would be just assuming there are no reflections and measuring a through/source step signal and postulating that is a flat 0db S21)

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@azonenberg @someone--else