New class for common mode noise correction
[u/mrichter/AliRoot.git] / ITS / AliITSOnlineSDDTP.cxx
1 /**************************************************************************
2  * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
3  *                                                                        *
4  * Author: The ALICE Off-line Project.                                    *
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12  * about the suitability of this software for any purpose. It is          *
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14  **************************************************************************/
15 #include "AliITSOnlineSDDTP.h"
16 #include "AliLog.h"
17 #include <TH2F.h>
18 #include <TMath.h>
19
20
21 ///////////////////////////////////////////////////////////////////
22 //                                                               //
23 // Implemetation of the class SDD Test Pulse analysis            //
24 // Origin: F.Prino, Torino, prino@to.infn.it                     //
25 //                                                               //
26 ///////////////////////////////////////////////////////////////////
27
28
29 ClassImp(AliITSOnlineSDDTP)
30
31 //______________________________________________________________________
32 AliITSOnlineSDDTP::AliITSOnlineSDDTP():AliITSOnlineSDD(),fNEvents(0),fDAQ(0.),fNSigmaGain(0.)
33 {
34   // default constructor
35   Reset();
36   SetNSigmaGain();
37 }
38 //______________________________________________________________________
39 AliITSOnlineSDDTP::AliITSOnlineSDDTP(Int_t mod, Int_t sid, Float_t xDAQ):AliITSOnlineSDD(mod,sid),fNEvents(0),fDAQ(xDAQ),fNSigmaGain(0.)
40 {
41   // standard constructor
42   Reset();
43   SetNSigmaGain();
44 }
45 //______________________________________________________________________
46 AliITSOnlineSDDTP::~AliITSOnlineSDDTP(){
47   // Destructor
48 }
49 //______________________________________________________________________
50 void AliITSOnlineSDDTP::Reset(){
51   fNEvents=0;
52   for(Int_t i=0;i<fgkNAnodes;i++){
53     fGoodAnode[i]=1;
54     fBaseline[i]=0.;
55     fSumTPPeak[i]=0.;
56     fTPPos[i]=0.;
57   }
58   ReadBaselines();
59 }
60
61 //______________________________________________________________________
62 void AliITSOnlineSDDTP::AddEvent(TH2F* hrawd){
63   // 
64   fNEvents++;
65   Double_t tbmax=(Double_t)hrawd->GetNbinsX();
66   for(Int_t ian=0;ian<fgkNAnodes;ian++){
67     Float_t auxmax=0.;
68     Int_t auxtb=0;
69     if(!fGoodAnode[ian]) continue;
70     for(Int_t itb=0;itb<tbmax;itb++){
71       Float_t cnt=hrawd->GetBinContent(itb+1,ian+1);
72       if(cnt>auxmax){ 
73         auxmax=cnt;
74         auxtb=itb;
75       }
76     }
77     fSumTPPeak[ian]+=auxmax-fBaseline[ian];
78     fTPPos[ian]+=auxtb;
79   }
80 }
81 //______________________________________________________________________
82 void AliITSOnlineSDDTP::ReadBaselines(){
83   // assume baselines and good anodes are taken from previous run
84   Char_t basfilnam[100];
85   sprintf(basfilnam,"SDDbase_step2_mod%03d_sid%d.data",fModuleId,fSide);
86   FILE* basf=fopen(basfilnam,"r");
87   if(basf==0){
88     AliWarning("Baselinefile not present, Set all baselines to 50\n");
89     for(Int_t ian=0;ian<fgkNAnodes;ian++){ 
90       fBaseline[ian]=50.;
91       fGoodAnode[ian]=1;
92     }
93     return;
94   }
95   Int_t n,ok;
96   Float_t base,rms,cmn,corrnoi;
97   for(Int_t ian=0;ian<fgkNAnodes;ian++){
98     fscanf(basf,"%d %d %f %f %f %f\n",&n,&ok,&base,&rms,&cmn,&corrnoi);
99     fBaseline[ian]=base;
100     fGoodAnode[ian]=ok;
101   }
102   fclose(basf);
103 }
104
105 //______________________________________________________________________
106 void AliITSOnlineSDDTP::ValidateAnodes(){
107   Float_t meang,rmsg;
108   StatGain(meang,rmsg);
109   Float_t lowlim=meang-fNSigmaGain*rmsg;
110   Float_t hilim=meang+fNSigmaGain*rmsg;
111
112   for(Int_t ian=0;ian<fgkNAnodes;ian++){
113     if(!fGoodAnode[ian]) continue;
114     if(GetChannelGain(ian)<lowlim||GetChannelGain(ian)>hilim) fGoodAnode[ian]=0;
115   }
116 }
117
118
119 //______________________________________________________________________
120 void AliITSOnlineSDDTP::StatGain(Float_t &mean, Float_t  &rms){
121   Float_t sum=0.,sumq=0.;
122   Int_t cnt=0;
123   for(Int_t ian=0;ian<fgkNAnodes;ian++){
124     if(!fGoodAnode[ian]) continue;
125     sum+=GetChannelGain(ian);
126     sumq+=TMath::Power(GetChannelGain(ian),2);
127     cnt++;
128   }
129   if(cnt>0){ 
130     mean=sum/(Float_t)cnt;
131     rms=TMath::Sqrt(sumq/(Float_t)cnt-mean*mean);
132   }else{ 
133     mean=0.;
134     rms=0.;
135   }
136   return;
137 }
138
139 //______________________________________________________________________
140 void AliITSOnlineSDDTP::WriteToFXS(){
141   //
142   Char_t basfilnam[100];
143   sprintf(basfilnam,"SDDbase_step2_mod%03d_sid%d.data",fModuleId,fSide);
144   FILE* basf=fopen(basfilnam,"r");
145   if(basf==0){
146     AliWarning("Baseline file not present, launch baseline analysis first\n");
147     return;
148   }
149   Int_t n,ok;
150   Float_t base,rms,cmn,corrnoi;
151   Float_t noise[fgkNAnodes],cmncoef[fgkNAnodes],corrnoise[fgkNAnodes];
152   for(Int_t ian=0;ian<fgkNAnodes;ian++){
153     fscanf(basf,"%d %d %f %f %f %f\n",&n,&ok,&base,&rms,&cmn,&corrnoi);
154     noise[ian]=rms;
155     cmncoef[ian]=cmn;
156     corrnoise[ian]=corrnoi;
157   }
158   fclose(basf);
159   Char_t outfilnam[100];
160   sprintf(outfilnam,"SDDbase_mod%03d_sid%d.data",fModuleId,fSide);
161   FILE* outf=fopen(outfilnam,"w");
162   for(Int_t ian=0;ian<fgkNAnodes;ian++){
163     fprintf(outf,"%d %d %8.3f %8.3f %8.3f %8.3f %8.3f\n",ian,IsAnodeGood(ian),fBaseline[ian], noise[ian],cmncoef[ian],corrnoise[ian],GetChannelGain(ian));
164   }
165   fclose(outf);  
166 }
167