TotemTimingConversions.h

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/****************************************************************************
 *
 * This is a part of CTPPS offline software.
 * Authors:
 *   Laurent Forthomme (laurent.forthomme@cern.ch)
 *   Nicola Minafra (nicola.minafra@cern.ch)
 *   Filip Dej
 *
 ****************************************************************************/

#ifndef RecoCTPPS_TotemRPLocal_TotemTimingConversions
#define RecoCTPPS_TotemRPLocal_TotemTimingConversions

#include "CommonTools/Utils/interface/FormulaEvaluator.h"

#include "DataFormats/CTPPSDigi/interface/TotemTimingDigi.h"
#include "CondFormats/CTPPSReadoutObjects/interface/PPSTimingCalibration.h"

#include <string>
#include <vector>

class TotemTimingConversions
{
  public:
    TotemTimingConversions(bool mergeTimePeaks, const PPSTimingCalibration& calibration);

    float timeOfFirstSample(const TotemTimingDigi& digi) const;
    float triggerTime(const TotemTimingDigi& digi) const;
    float timePrecision(const TotemTimingDigi& digi) const;
    std::vector<float> timeSamples(const TotemTimingDigi& digi) const;
    std::vector<float> voltSamples(const TotemTimingDigi& digi) const;

  private:
    static constexpr float SAMPIC_SAMPLING_PERIOD_NS = 1. / 7.695;
    static constexpr float SAMPIC_ADC_V = 1. / 256;
    static constexpr int SAMPIC_MAX_NUMBER_OF_SAMPLES = 64;
    static constexpr int SAMPIC_DEFAULT_OFFSET = 30;
    static constexpr int ACCEPTED_TIME_RADIUS = 4;
    static constexpr unsigned long CELL0_MASK = 0xfffffff000;

    PPSTimingCalibration calibration_;
    bool mergeTimePeaks_;
    reco::FormulaEvaluator calibrationFunction_;
};

#endif