X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=ITS%2FAliITSOnlineSDDBase.cxx;h=4dfdf52c4213fae6c0ffde2694bc45efac80e0a0;hb=f10094af4cc0bf7d3bcbe3005faf6d55dd105367;hp=683b62e4b6b034192cf724ab2479a9360e821c3a;hpb=d8303ac823b56e97c20df5f5f36f29431cb8afb4;p=u%2Fmrichter%2FAliRoot.git

diff --git a/ITS/AliITSOnlineSDDBase.cxx b/ITS/AliITSOnlineSDDBase.cxx
index 683b62e4b6b..4dfdf52c421 100644
--- a/ITS/AliITSOnlineSDDBase.cxx
+++ b/ITS/AliITSOnlineSDDBase.cxx
@@ -25,10 +25,13 @@
 //                                                               //
 ///////////////////////////////////////////////////////////////////
 
+/*  $Id$   */
+
+const Int_t AliITSOnlineSDDBase::fgkMaxCorr=63; // 6 but correction
 
 ClassImp(AliITSOnlineSDDBase)
 //______________________________________________________________________
-  AliITSOnlineSDDBase::AliITSOnlineSDDBase():AliITSOnlineSDD(),fNEvents(0),fMinBaseline(0.),fMaxBaseline(0.),fMinRawNoise(0.),fMaxRawNoise(0.),fNSigmaNoise(0.)
+  AliITSOnlineSDDBase::AliITSOnlineSDDBase():AliITSOnlineSDD(),fNEvents(0),fMinBaseline(0.),fMaxBaseline(0.),fMinRawNoise(0.),fMaxRawNoise(0.),fNSigmaNoise(0.),fGoldenBaseline(0.),fLowThrFact(0.),fHighThrFact(0.)
 {
   // default constructor
   Reset();
@@ -37,9 +40,11 @@ ClassImp(AliITSOnlineSDDBase)
   SetMinRawNoise();
   SetMaxRawNoise();
   SetNSigmaNoise();
+  SetGoldenBaselineValue();
+  SetZeroSuppThresholds();
 }
 //______________________________________________________________________
-  AliITSOnlineSDDBase::AliITSOnlineSDDBase(Int_t mod, Int_t sid):AliITSOnlineSDD(mod,sid),fNEvents(0),fMinBaseline(0.),fMaxBaseline(0.),fMinRawNoise(0.),fMaxRawNoise(0.),fNSigmaNoise(0.)
+AliITSOnlineSDDBase::AliITSOnlineSDDBase(Int_t nddl, Int_t ncarlos, Int_t sid):AliITSOnlineSDD(nddl,ncarlos,sid),fNEvents(0),fMinBaseline(0.),fMaxBaseline(0.),fMinRawNoise(0.),fMaxRawNoise(0.),fNSigmaNoise(0.),fGoldenBaseline(0.),fLowThrFact(0.),fHighThrFact(0.)
 {
   // default constructor
   Reset();
@@ -48,6 +53,8 @@ ClassImp(AliITSOnlineSDDBase)
   SetMinRawNoise();
   SetMaxRawNoise();
   SetNSigmaNoise();
+  SetGoldenBaselineValue();
+  SetZeroSuppThresholds();
 }
 //______________________________________________________________________
 AliITSOnlineSDDBase::~AliITSOnlineSDDBase(){
@@ -55,7 +62,7 @@ AliITSOnlineSDDBase::~AliITSOnlineSDDBase(){
 }
 //______________________________________________________________________
 void AliITSOnlineSDDBase::Reset(){
-  //
+  // reset all counters
   fNEvents=0;
   for(Int_t i=0;i<fgkNAnodes;i++){
     fGoodAnode[i]=1;
@@ -66,35 +73,43 @@ void AliITSOnlineSDDBase::Reset(){
 }
 //______________________________________________________________________
 void  AliITSOnlineSDDBase::ValidateAnodes(){
-  //
+  // tag good/bad channels
   for(Int_t ian=0;ian<fgkNAnodes;ian++){
     fGoodAnode[ian]=1;
-    if(GetAnodeBaseline(ian)>fMaxBaseline || GetAnodeBaseline(ian)<fMinBaseline) fGoodAnode[ian]=0;
-    if(GetAnodeRawNoise(ian)>fMaxRawNoise || GetAnodeRawNoise(ian)<fMinRawNoise) fGoodAnode[ian]=0;
-    if(GetAnodeRawNoise(ian)>fNSigmaNoise*CalcMeanRawNoise()) fGoodAnode[ian]=0;
+    Float_t basel=GetAnodeBaseline(ian);
+    Float_t rawn=GetAnodeRawNoise(ian);
+    Float_t ratio=0.;
+    if(rawn>0) ratio=basel/rawn;
+    if(basel>fMaxBaseline || basel<fMinBaseline) fGoodAnode[ian]=0;
+    else if(rawn>fMaxRawNoise || rawn<fMinRawNoise) fGoodAnode[ian]=0;
+    else if(rawn>fNSigmaNoise*CalcMeanRawNoise()) fGoodAnode[ian]=0;
+    else if(ratio<3.) fGoodAnode[ian]=0;
   }
 }
 
 //______________________________________________________________________
 void AliITSOnlineSDDBase::AddEvent(TH2F* hrawd){
-  // 
+  // analyzes one event and adds its ontribution to the various counters
+
   fNEvents++;
-  const Int_t kTimeBins=fLastGoodTB-fFirstGoodTB+1;
+  const Int_t kTimeBins=fLastGoodTB+1;
   Float_t sum[fgkNAnodes];
   for(Int_t ian=0;ian<fgkNAnodes;ian++){
     Float_t sumQ=0.;
     sum[ian]=0.;
+    Int_t cnt=0;
     for(Int_t itb=fFirstGoodTB;itb<=fLastGoodTB;itb++){
-      sum[ian]+=hrawd->GetBinContent(itb+1,ian+1);
-      sumQ+=TMath::Power(hrawd->GetBinContent(itb+1,ian+1),2);      
+      Float_t cbin=hrawd->GetBinContent(itb+1,ian+1);
+      sum[ian]+=cbin;
+      sumQ+=cbin*cbin;
+      cnt++;
     }
-    sum[ian]/=(Float_t)kTimeBins;
-    sumQ/=(Float_t)kTimeBins;
+    sum[ian]/=(Float_t)cnt;
+    sumQ/=(Float_t)cnt;
     fSumBaseline[ian]+=sum[ian];
     fSumRawNoise[ian]+=sumQ;
-    if(fNEvents==1) ValidateAnodes();
   }
-
+  if(fNEvents==1) ValidateAnodes();
 
   Float_t *cmnEven = new Float_t[kTimeBins];
   Float_t *cmnOdd  = new Float_t[kTimeBins];
@@ -121,7 +136,7 @@ void AliITSOnlineSDDBase::AddEvent(TH2F* hrawd){
       Float_t cmnCoef=cmnOdd[itb];
       if(ian%2==0) cmnCoef=cmnEven[itb];
       num+=(hrawd->GetBinContent(itb+1,ian+1)-sum[ian])*cmnCoef;
-      den+=TMath::Power(cmnCoef,2);
+      den+=cmnCoef*cmnCoef;
     }
     if(den!=0) fSumCMN[ian]+=num/den;
   }
@@ -130,9 +145,23 @@ void AliITSOnlineSDDBase::AddEvent(TH2F* hrawd){
   delete [] cmnOdd;
 }
 //______________________________________________________________________
+void AliITSOnlineSDDBase::GetMinAndMaxBaseline(Float_t &basMin, Float_t &basMax) const {
+  // fills mininum and maximum baseline values
+  basMin=1008.;
+  basMax=0.;
+  for(Int_t ian=0;ian<fgkNAnodes;ian++){
+    if(!fGoodAnode[ian]) continue;
+    Float_t bas=GetAnodeBaseline(ian);
+    if(bas>0 && bas < basMin) basMin=bas;
+    if(bas>0 && bas > basMax) basMax=bas;
+  }
+}
+//______________________________________________________________________
 Float_t AliITSOnlineSDDBase::GetMinimumBaseline() const {
+  // returns anode with minum baseline value in hybrid
   Float_t basMin=1008.;
   for(Int_t ian=0;ian<fgkNAnodes;ian++){
+    if(!fGoodAnode[ian]) continue;
     Float_t bas=GetAnodeBaseline(ian);
     if(bas>0 && bas < basMin) basMin=bas;
   }
@@ -140,7 +169,7 @@ Float_t AliITSOnlineSDDBase::GetMinimumBaseline() const {
 }
 //______________________________________________________________________
 Float_t AliITSOnlineSDDBase::CalcMeanRawNoise() const{
-  //
+  // compute mean value of raw noise
   Float_t meanns=0.;
   Int_t cnt=0;
   for(Int_t ian=0;ian<fgkNAnodes;ian++){
@@ -153,17 +182,33 @@ Float_t AliITSOnlineSDDBase::CalcMeanRawNoise() const{
 }
 //______________________________________________________________________
 void AliITSOnlineSDDBase::WriteToASCII(){
-  //
-  Char_t outfilnam[100];
-  Float_t basMin=GetMinimumBaseline();
-  sprintf(outfilnam,"SDDbase_step1_mod%03d_sid%d.data",fModuleId,fSide);
-  FILE* outf=fopen(outfilnam,"w");
+  // writes parameters of each channel into an ASCII file 
+  // to be then read in the successive step for common mode noise
+  // correction (AliITSOnlineSDDCMN)
+
+  TString outfilnam;
+  Float_t basMin,basMax;
+  GetMinAndMaxBaseline(basMin,basMax);
+  Float_t finalVal=basMin;
+  if(basMin>fGoldenBaseline && basMax<fGoldenBaseline+fgkMaxCorr) finalVal=fGoldenBaseline;
+  if(basMax<basMin+fgkMaxCorr && basMax>fGoldenBaseline+fgkMaxCorr) finalVal=basMax-fgkMaxCorr;
+
+  Float_t avNoise=CalcMeanRawNoise();
+  Int_t thrL=(Int_t)(finalVal+fLowThrFact*avNoise+0.5);
+  Int_t thrH=(Int_t)(finalVal+fHighThrFact*avNoise+0.5);
+  if(CountGoodAnodes()==0) thrH=255;
+
+  outfilnam.Form("SDDbase_step1_ddl%02dc%02d_sid%d.data",fDDL,fCarlos,fSide);
+  FILE* outf=fopen(outfilnam.Data(),"w");
+  fprintf(outf,"%d\n",thrH);
+  fprintf(outf,"%d\n",thrL);
   Float_t corrnoise=2.;
   for(Int_t ian=0;ian<fgkNAnodes;ian++){
     Float_t bas=GetAnodeBaseline(ian);
-    Int_t corr=(Int_t)(bas-basMin+0.5);
-    if(corr>63) corr=63; // only 6 bits in jtag for correction
-    fprintf(outf,"%d %d %11.6f %d %d %11.6f %11.6f %11.6f\n",ian,IsAnodeGood(ian),GetAnodeBaseline(ian),(Int_t)basMin,corr,GetAnodeRawNoise(ian),GetAnodeCommonMode(ian),corrnoise);
+    Int_t corr=(Int_t)(bas-finalVal+0.5);
+    if(corr>fgkMaxCorr) corr=fgkMaxCorr; // only 6 bits in jtag for correction
+    if(corr<0) corr=0; // avoid negative numbers
+    fprintf(outf,"%d %d %11.6f %d %d %11.6f %11.6f %11.6f\n",ian,IsAnodeGood(ian),GetAnodeBaseline(ian),(Int_t)finalVal,corr,GetAnodeRawNoise(ian),GetAnodeCommonMode(ian),corrnoise);
   }
   fclose(outf);  
 }