1 /**************************************************************************
2 * Copyright(c) 2006, ALICE Experiment at CERN, All rights reserved. *
4 * Author: Per Thomas Hille for the ALICE HLT Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
17 #include "AliHLTPHOSRawAnalyzerLMS.h"
23 ClassImp(AliHLTPHOSRawAnalyzerLMS)
26 AliHLTPHOSRawAnalyzerLMS::AliHLTPHOSRawAnalyzerLMS(const AliHLTPHOSRawAnalyzerLMS&):AliHLTPHOSRawAnalyzer(), kfMCovarPtrPtr(0), fPCovarPtrPtr(0)
33 * The AliHLTPHOSPeakfinder class is the class for extracting the basic signal parameters
34 * "timing" and "energy" from the PHOS raw data. Physical data will for a given readout channel be
35 * a sequense of ADC digitized 10 bit integer values, however for performance reasons all values used in
36 * calculation is of type double.
38 AliHLTPHOSRawAnalyzerLMS::AliHLTPHOSRawAnalyzerLMS():AliHLTPHOSRawAnalyzer(), kfMCovarPtrPtr(0), fPCovarPtrPtr(0)
40 cout <<"You cannot invoke the Fitter without arguments"<<endl;;
46 * @param dataPtr Data array for wich a subarray will be taken to perform the fit
47 * @param fs the sampling frequency in entities of MHz. Needed in order to calculate physical time
49 AliHLTPHOSRawAnalyzerLMS::AliHLTPHOSRawAnalyzerLMS(double *dtaPtr, double fs):AliHLTPHOSRawAnalyzer(),kfMCovarPtrPtr(0), fPCovarPtrPtr(0)
51 fFloatDataPtr = dtaPtr;
52 fSampleFrequency = fs;
53 } //end AliHLTPHOSRawAnalyzerLMS
56 AliHLTPHOSRawAnalyzerLMS::~AliHLTPHOSRawAnalyzerLMS()
59 } //end AliHLTPHOSRawAnalyzerLMS
63 * Extraction of timing and energy using the Peakfinde Algorithm.
64 * The. The parameters "start" and "length" defines a sub array of the data array
65 * that will be used for the the fit. If start+length must not exeed the total length
66 * of the Data array. "start" must be chosen as close as possible to t0.
67 * The baseline must also be subtracted.
68 * The length of "tVector" and "aVector" mus be equal to length.
69 * "index + length" must not exeed the length of the data array set in the constructor.
70 * @param start the start index of the subarray of the data array.
71 * @param length the number of samples to use starting from index
74 AliHLTPHOSRawAnalyzerLMS::Evaluate(int start, int length)