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| sci.optics | Discussion relating to the science of op | 12,750 messages |
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| Message 11,104 of 12,750 |
| Jerry Avins to Bret Cahill |
| Re: Is Match Filtering Ever Used To Reco |
| 14 Apr 12 21:24:26 |
21613cf1 XPost: sci.math.num-analysis, sci.math, comp.dsp From: jya@ieee.org On 4/14/2012 4:28 PM, Bret Cahill wrote: >>>> What does further processing get you in terms of information? >> >>> Supposing you need to squelch when the first derivative of the >>> original signal exceeds a threshold? >> >>> How do you do that with the convolution? >> >>>> A pretty picture (i.e. waveform) that by visual inspection you can say: >>>> "SEE? It looks the same as what I started with!! ?? >> >>> A visual comparison of the filtered signal with the template _is_ nice >>> to have to get a quick idea of the noise problem. >> >>> Bret Cahill >> >> Agreed > > Here, try again: > > Supposing you need to squelch when the first derivative of the > original signal exceeds a threshold? How do you do that with the > convolution? How do you do that with a matched filter? Jerry -- Engineering is the art of making what you want from things you can get. ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ --- SoupGate-Win32 v1.05 * Origin: you cannot sedate... all the things you hate (1:229/2) |
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