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