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Case-Study Case-Study, DSP, Signal Processing, Trigger Case-Study Matched Filter FFT Fast Convolution Trigger SNR

A matched filter at full sampling rate, using fast convolution

If you know the shape of the pulse you are looking for, the filter that maximises the signal-to-noise ratio at the moment of detection is the matched filter: correlate the incoming stream with a time-reversed copy of that shape.

Continuous spectral monitoring: finding a line that should not be there

Some of the most useful measurements an instrument makes are not of the thing it was built to measure. A cryostat develops microphonics from a pump that was fine last month.

Tag: FFT

A matched filter at full sampling rate, using fast convolution

Continuous spectral monitoring: finding a line that should not be there