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b0f5e3fc | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
48058160 | 15 | |
16 | /* | |
17 | $Log$ | |
4ae5bbc4 | 18 | Revision 1.8 2002/10/14 14:57:00 hristov |
19 | Merging the VirtualMC branch to the main development branch (HEAD) | |
20 | ||
b9d0a01d | 21 | Revision 1.6.6.1 2002/06/10 17:51:15 hristov |
22 | Merged with v3-08-02 | |
23 | ||
24 | Revision 1.7 2002/04/24 22:02:31 nilsen | |
25 | New SDigits and Digits routines, and related changes, (including new | |
26 | noise values). | |
27 | ||
48058160 | 28 | */ |
4ae5bbc4 | 29 | #include <Riostream.h> |
b0f5e3fc | 30 | #include <TMath.h> |
11ad066f | 31 | #include <TString.h> |
b0f5e3fc | 32 | #include "AliITSetfSDD.h" |
33 | ||
34 | //////////////////////////////////////////////////////////////////////// | |
35 | // Version: 0 | |
36 | // Written by Piergiorgio Cerello | |
37 | // November 23 1999 | |
38 | // | |
b0f5e3fc | 39 | //_____________________________________________________________________________ |
b669392e | 40 | |
41 | ||
b0f5e3fc | 42 | ClassImp(AliITSetfSDD) |
43 | ||
44 | Int_t ppower(Int_t b, Int_t e) { | |
e8189707 | 45 | Int_t power = 1; |
46 | for(Int_t i=0; i<e; i++) power *= b; | |
b0f5e3fc | 47 | return power; |
48 | } | |
49 | ||
11ad066f | 50 | AliITSetfSDD::AliITSetfSDD(Double_t timestep, Int_t amplif) |
b0f5e3fc | 51 | { |
52 | // sampling time in ns | |
e8189707 | 53 | |
11ad066f | 54 | fTimeDelay = 53.5; |
55 | if(amplif == 2) fTimeDelay = 35.5; | |
e8189707 | 56 | fSamplingTime = timestep; |
57 | ||
b0f5e3fc | 58 | fT0 = 0.; |
b669392e | 59 | fDf = ppower(10,9)/(kMaxNofSamples*fSamplingTime); |
b0f5e3fc | 60 | |
e8189707 | 61 | Int_t i,j; |
b669392e | 62 | for(i=0; i<kMaxNofPoles; i++) { |
e8189707 | 63 | fZeroM[i] = 0.; |
64 | fZeroR[i] = 0.; | |
65 | fZeroI[i] = 0.; | |
66 | fPoleM[i] = 0.; | |
67 | fPoleR[i] = 0.; | |
68 | fPoleI[i] = 0.; | |
b0f5e3fc | 69 | } |
11ad066f | 70 | // Alice |
71 | ||
48058160 | 72 | // PASCAL amplif |
73 | fA0 = 5.53269815e+11; | |
74 | fPoleM[0] = 3.; | |
75 | fPoleR[0] = -8280000.; | |
76 | fPoleI[0] = 0.; | |
77 | ||
78 | if(amplif == 2) { // OLA amplif. | |
79 | fA0 = 24000.; | |
80 | fPoleM[0] = 1.; | |
11ad066f | 81 | fPoleR[0] = -3000000.; |
82 | fPoleI[0] = 4000000.; | |
48058160 | 83 | fPoleM[1] = 1.; |
84 | fPoleR[1] = fPoleR[0]; | |
85 | fPoleI[1] = -fPoleI[0]; | |
86 | } | |
87 | ||
88 | if( amplif == 3 ) { // old PASCAL | |
89 | fA0 = 16500.; // AL: 16500.; // TB: 24000.; // 26000.; // 24000.; // 18000.; | |
90 | fPoleM[0] = 1.; | |
91 | fPoleR[0] = -4140000.; // AL: -4140000.; // TB: -3000000.; // -3750000.; // -3500000; // -3000000.; | |
92 | fPoleI[0] = 0.; // AL: 0.; // TB: 4000000.; // 3750000.; // 3500000.; // 3000000.; | |
93 | fPoleM[1] = 1.; | |
94 | fPoleR[1] = fPoleR[0]; | |
95 | fPoleI[1] = -fPoleI[0]; | |
11ad066f | 96 | } |
b0f5e3fc | 97 | |
48058160 | 98 | //cout << "fA0: " << fA0 << endl; |
99 | //cout << "fTimeDelay: " << fTimeDelay << endl; | |
100 | ||
11ad066f | 101 | // Compute Transfer Function |
b0f5e3fc | 102 | |
103 | Double_t PI = acos(-1.); | |
b669392e | 104 | for(i=0; i<=kMaxNofSamples/2; i++) { |
b0f5e3fc | 105 | Double_t frequency = fDf*i; |
106 | Double_t VM = fA0; | |
107 | Double_t VA = 0.; | |
b669392e | 108 | for(Int_t k=0; k<kMaxNofPoles; k++) { |
e8189707 | 109 | if(fZeroM[k]) { |
110 | Double_t VZR = -fZeroR[k]; | |
111 | Double_t VZI = frequency - fZeroI[k]; | |
b0f5e3fc | 112 | Double_t VZM = TMath::Sqrt(VZR*VZR+VZI*VZI); |
113 | Double_t VZA = TMath::ATan2(VZI,VZR); | |
114 | // cout << "VZM: " << VZM << ", VZA: " << VZA << endl; | |
115 | // cout << "VZR: " << VZR << ", VZI: " << VZI << endl; | |
e8189707 | 116 | for(j=1; j<= (Int_t) fZeroM[k]; j++) { |
b0f5e3fc | 117 | VM *= VZM; |
118 | VA += VZA; | |
119 | if(VA >= PI) VA -= (2.*PI); | |
120 | if(VA <= -PI) VA += (2.*PI); | |
121 | //cout << "VM: " << VM << ", VA: " << VA << endl; | |
122 | } | |
123 | } | |
124 | ||
e8189707 | 125 | if(fPoleM[k]) { |
126 | Double_t VPR = -fPoleR[k]; | |
127 | Double_t VPI = frequency - fPoleI[k]; | |
b0f5e3fc | 128 | Double_t VPM = TMath::Sqrt(VPR*VPR+VPI*VPI); |
129 | Double_t VPA = TMath::ATan2(VPI,VPR); | |
130 | //cout << "VPM: " << VPM << ", VPA: " << VPA << endl; | |
131 | //cout << "VPR: " << VPR << ", VPI: " << VPI << endl; | |
e8189707 | 132 | for(j=1; j<= (Int_t) fPoleM[k]; j++) { |
b0f5e3fc | 133 | VM /= VPM; |
134 | VA -= VPA; | |
135 | if(VA >= PI) VA -= (2.*PI); | |
136 | if(VA <= -PI) VA += (2.*PI); | |
137 | //cout << "VM: " << VM << ", VA: " << VA << endl; | |
138 | } | |
139 | } | |
140 | Double_t VR = VM*cos(VA); | |
141 | Double_t VI = VM*sin(VA); | |
142 | //cout << "VM: " << VM << ", VA: " << VA << endl; | |
143 | //cout << "VR: " << VR << ", VI: " << VI << endl; | |
e8189707 | 144 | fTfR[i] = VR*ppower(10,9); |
145 | fTfI[i] = VI*ppower(10,9); | |
146 | //cout << "fTfR[" << i << "] = " << fTfR[i] << endl; | |
147 | //cout << "fTfI[" << i << "] = " << fTfI[i] << endl; | |
b0f5e3fc | 148 | if(i) { |
b669392e | 149 | fTfR[kMaxNofSamples-i] = fTfR[i]; |
150 | fTfI[kMaxNofSamples-i] = -fTfI[i]; | |
b0f5e3fc | 151 | } |
152 | } | |
153 | } | |
154 | ||
155 | // Compute Fourier Weights | |
156 | ||
b669392e | 157 | for(i=0; i<=kMaxNofSamples/2; i++) { |
158 | fWR[i] = cos(-2.*PI*i/kMaxNofSamples); | |
159 | fWI[i] = sin(-2.*PI*i/kMaxNofSamples); | |
b0f5e3fc | 160 | if(i) { |
b669392e | 161 | fWR[kMaxNofSamples-i] = fWR[i]; |
162 | fWI[kMaxNofSamples-i] = -fWI[i]; | |
b0f5e3fc | 163 | } |
164 | } | |
165 | ||
166 | } | |
167 | ||
e8189707 | 168 | void AliITSetfSDD::PrintElectronics() |
b0f5e3fc | 169 | { |
11ad066f | 170 | cout << "Time Delay " << fTimeDelay << endl; |
b0f5e3fc | 171 | cout << "Sampling Time " << fSamplingTime << endl; |
b669392e | 172 | cout << "Number of Time Samples " << kMaxNofSamples << endl; |
b0f5e3fc | 173 | cout << "fT0 " << fT0 << endl; |
174 | cout << "fDf " << fDf << endl; | |
175 | cout << "fA0 " << fA0 << endl; | |
176 | ||
177 | cout << "Zero's and Pole's" << endl; | |
e8189707 | 178 | cout << "fZeroM " << endl; |
179 | Int_t i; | |
b669392e | 180 | for(i=0; i<kMaxNofPoles; i++) cout << fZeroM[i] << endl; |
b0f5e3fc | 181 | cout << "fZero_R " << endl; |
b669392e | 182 | for(i=0; i<kMaxNofPoles; i++) cout << fZeroR[i] << endl; |
e8189707 | 183 | cout << "fZeroI " << endl; |
b669392e | 184 | for(i=0; i<kMaxNofPoles; i++) cout << fZeroI[i] << endl; |
e8189707 | 185 | cout << "fPoleM " << endl; |
b669392e | 186 | for(i=0; i<kMaxNofPoles; i++) cout << fPoleM[i] << endl; |
e8189707 | 187 | cout << "fPoleR " << endl; |
b669392e | 188 | for(i=0; i<kMaxNofPoles; i++) cout << fPoleR[i] << endl; |
e8189707 | 189 | cout << "fPoleI " << endl; |
b669392e | 190 | for(i=0; i<kMaxNofPoles; i++) cout << fPoleI[i] << endl; |
b0f5e3fc | 191 | |
192 | cout << "Transfer function" << endl; | |
193 | cout << "Real Part" << endl; | |
b669392e | 194 | for(i=0; i<kMaxNofSamples; i++) cout << fTfR[i] << endl; |
b0f5e3fc | 195 | cout << "Imaginary Part " << endl; |
b669392e | 196 | for(i=0; i<kMaxNofSamples; i++) cout << fTfI[i] << endl; |
b0f5e3fc | 197 | |
198 | cout << "Fourier Weights" << endl; | |
199 | cout << "Real Part" << endl; | |
b669392e | 200 | for(i=0; i<kMaxNofSamples; i++) cout << fWR[i] << endl; |
b0f5e3fc | 201 | cout << "Imaginary Part " << endl; |
b669392e | 202 | for(i=0; i<kMaxNofSamples; i++) cout << fWI[i] << endl; |
b0f5e3fc | 203 | } |
204 | ||
205 | ||
206 | ||
207 | ||
208 | ||
209 | ||
210 | ||
211 |