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| 1 | +//////////////////////////////////////////////////////////////////////// |
| 2 | +// Class: DigitalNoiseEventFilter |
| 3 | +// Plugin Type: filter (Unknown Unknown) |
| 4 | +// File: DigitalNoiseEventFilter_module.cc |
| 5 | +// |
| 6 | +// Generated at Tue Oct 7 14:28:27 2025 by Thomas Junk using cetskelgen |
| 7 | +// from cetlib version 3.18.02. |
| 8 | +//////////////////////////////////////////////////////////////////////// |
| 9 | + |
| 10 | +#include "art/Framework/Core/EDFilter.h" |
| 11 | +#include "art/Framework/Core/ModuleMacros.h" |
| 12 | +#include "art/Framework/Principal/Event.h" |
| 13 | +#include "art/Framework/Principal/Handle.h" |
| 14 | +#include "art/Framework/Principal/Run.h" |
| 15 | +#include "art/Framework/Principal/SubRun.h" |
| 16 | +#include "canvas/Utilities/InputTag.h" |
| 17 | +#include "fhiclcpp/ParameterSet.h" |
| 18 | +#include "messagefacility/MessageLogger/MessageLogger.h" |
| 19 | +#include "sbnobj/Common/Analysis/TPCChannelInfo.hh" |
| 20 | +#include "larevt/CalibrationDBI/Interface/ChannelStatusProvider.h" |
| 21 | +#include "larevt/CalibrationDBI/Interface/ChannelStatusService.h" |
| 22 | + |
| 23 | +#include <memory> |
| 24 | + |
| 25 | +class DigitalNoiseEventFilter; |
| 26 | + |
| 27 | + |
| 28 | +class DigitalNoiseEventFilter : public art::EDFilter { |
| 29 | +public: |
| 30 | + explicit DigitalNoiseEventFilter(fhicl::ParameterSet const& p); |
| 31 | + // The compiler-generated destructor is fine for non-base |
| 32 | + // classes without bare pointers or other resource use. |
| 33 | + |
| 34 | + // Plugins should not be copied or assigned. |
| 35 | + DigitalNoiseEventFilter(DigitalNoiseEventFilter const&) = delete; |
| 36 | + DigitalNoiseEventFilter(DigitalNoiseEventFilter&&) = delete; |
| 37 | + DigitalNoiseEventFilter& operator=(DigitalNoiseEventFilter const&) = delete; |
| 38 | + DigitalNoiseEventFilter& operator=(DigitalNoiseEventFilter&&) = delete; |
| 39 | + |
| 40 | + // Required functions. |
| 41 | + bool filter(art::Event& e) override; |
| 42 | + |
| 43 | +private: |
| 44 | + |
| 45 | + std::string fTag; // input tag for reading TPCChannelInfo data |
| 46 | + float fEvenFractionHighCut; // upper cut on the fraction of ADC samples that are even |
| 47 | + float fEvenFractionLowCut; // lower cut on the fraction of ADC samples that are even |
| 48 | + int fEvenFractionNumChannelCut; // max # of channels with suspect even fractions to keep event. Otherwise suspect CE noise |
| 49 | + float fRMSCut; // how noisy a channel has to be before we think it might have CE noise |
| 50 | + int fRMSNumChannelCut; // keep event if this many channels or fewer have RMS>fRMSCut. Otherwise suspect CE noise |
| 51 | + bool fKeepIfNoChannelInfo; // If we do not find TPCChannelInfo, do we keep or reject the event? |
| 52 | + bool fUseBadChanStatus; // true if we skip over bad channels in calculating numbers of suspect CE noise channels |
| 53 | + |
| 54 | +}; |
| 55 | + |
| 56 | + |
| 57 | +DigitalNoiseEventFilter::DigitalNoiseEventFilter(fhicl::ParameterSet const& p) |
| 58 | + : EDFilter{p} // , |
| 59 | + // More initializers here. |
| 60 | +{ |
| 61 | + fTag = p.get<std::string>("TPCChannelInfoDataLabel","daq"); |
| 62 | + fEvenFractionHighCut = p.get<float>("EvenFractionHighCut",0.6); |
| 63 | + fEvenFractionLowCut = p.get<float>("EvenFractionLowCut",0.4); |
| 64 | + fEvenFractionNumChannelCut = p.get<int>("EvenFractionNumChannelCut",10); |
| 65 | + fRMSCut = p.get<float>("RMSCut",1100.0); |
| 66 | + fRMSNumChannelCut = p.get<int>("RMSNumChannelCut",50); |
| 67 | + fKeepIfNoChannelInfo = p.get<bool>("KeepIfNoChannelInfo",true); |
| 68 | + fUseBadChanStatus = p.get<bool>("UseBadChanStatus",true); |
| 69 | + |
| 70 | + consumes<std::vector<anab::TPCChannelInfo>>(fTag); |
| 71 | +} |
| 72 | + |
| 73 | +bool DigitalNoiseEventFilter::filter(art::Event& e) |
| 74 | +{ |
| 75 | + lariov::ChannelStatusProvider const& channelStatus(art::ServiceHandle<lariov::ChannelStatusService const>()->GetProvider()); |
| 76 | + |
| 77 | + auto channelinfos = e. getHandle<std::vector<anab::TPCChannelInfo>>( fTag); |
| 78 | + if (!channelinfos || channelinfos->empty()) return fKeepIfNoChannelInfo; |
| 79 | + |
| 80 | + int neven_suspect = 0; |
| 81 | + int nrms_suspect = 0; |
| 82 | + double fevdiff = (fEvenFractionHighCut - fEvenFractionLowCut)/2.0; |
| 83 | + for (const auto &ci : *channelinfos) { |
| 84 | + if (fUseBadChanStatus && channelStatus.IsBad(ci.channel)) continue; |
| 85 | + if (ci.even_fraction > fEvenFractionHighCut || ci.even_fraction < fEvenFractionLowCut) ++neven_suspect; |
| 86 | + if (ci.rms > fRMSCut) { |
| 87 | + ++nrms_suspect; |
| 88 | + } |
| 89 | + else { // try a diagonal cut in case a waveform is noisy and then becomes stuck partway through |
| 90 | + if (fRMSCut > 0 && fevdiff > 0) { |
| 91 | + if ( (ci.rms/fRMSCut + std::abs(ci.even_fraction - 0.5)/fevdiff) > 1) ++nrms_suspect; |
| 92 | + } |
| 93 | + } |
| 94 | + } |
| 95 | + return (neven_suspect <= fEvenFractionNumChannelCut && nrms_suspect <= fRMSNumChannelCut); |
| 96 | +} |
| 97 | + |
| 98 | +DEFINE_ART_MODULE(DigitalNoiseEventFilter) |
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