Add LPF/derivative based edge detector filter

ngscopeclient / scopehal

Test and measurement hardware abstraction library and protocol decodes. This is the library only. Most users should use scopehal-apps.

BSD 3-Clause "New" or "Revised" License

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Add LPF/derivative based edge detector filter #649

Open azonenberg opened 2 years ago

azonenberg commented 2 years ago

Detect edges in arbitrary serial signals by doing a LPF at the symbol rate then looking for maxima in the second derivative to find the midpoint of each edge.