| 090026bf |
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 | **************************************************************************/ |
| 15 | |
| 16 | /* $Id$ */ |
| 17 | |
| 18 | #include <TF1.h> |
| 19 | #include <TMath.h> |
| 20 | |
| ec143d80 |
21 | #include "AliSignalProcesor.h" |
| bb7e41dd |
22 | #include "AliMathBase.h" |
| ec143d80 |
23 | |
| 24 | |
| 25 | ClassImp(AliSignalProcesor) |
| 26 | |
| 27 | |
| 28 | Double_t asymgauss(Double_t* x, Double_t* par) |
| 29 | { |
| 30 | // par[0] = normalization |
| 31 | // par[1] = mean |
| 32 | // par[2] = sigma |
| 33 | // norm0 = 1 |
| 34 | // par[3] = lambda0 |
| 35 | // par[4] = norm1 |
| 36 | // par[5] = lambda1 |
| 37 | // |
| 38 | |
| 39 | Double_t par1save = par[1]; |
| 40 | Double_t par2save = par[2]; |
| 41 | Double_t par3save = par[3]; |
| 42 | Double_t par5save = par[5]; |
| 43 | Double_t dx = x[0]-par1save; |
| 44 | // |
| 45 | // |
| 46 | Double_t sigma2 = par2save*par2save; |
| 47 | Double_t sqrt2 = TMath::Sqrt(2.); |
| 48 | if (-par3save*(dx-0.5*par3save*sigma2)>100) return 0; // avoid overflow |
| 49 | if (-par5save*(dx-0.5*par5save*sigma2)>100) return 0; // avoid overflow |
| 50 | if (TMath::Abs(par[4])>1) return 0; |
| 51 | Double_t exp1 = par3save*TMath::Exp(-par3save*(dx-0.5*par3save*sigma2)) |
| bb7e41dd |
52 | *(1-AliMathBase::ErfFast((par3save*sigma2-dx)/(sqrt2*par2save))); |
| ec143d80 |
53 | |
| 54 | Double_t exp2 = par5save*TMath::Exp(-par5save*(dx-0.5*par5save*sigma2)) |
| bb7e41dd |
55 | *(1-AliMathBase::ErfFast((par5save*sigma2-dx)/(sqrt2*par2save))); |
| ec143d80 |
56 | |
| 57 | |
| 58 | return par[0]*(exp1+par[4]*exp2); |
| 59 | } |
| 60 | |
| 61 | Double_t asymgaussN(Double_t* x, Double_t* par) |
| 62 | { |
| 63 | // par[0] = normalization |
| 64 | // par[1] = mean |
| 65 | // par[2] = sigma |
| 66 | // norm0 = 1 |
| 67 | // par[3] = lambda0 |
| 68 | // par[4] = norm1 |
| 69 | // par[5] = lambda1 |
| 70 | // |
| 71 | |
| 72 | Double_t par1save = par[1]; |
| 73 | Double_t par2save = par[2]; |
| 74 | Double_t par3save = par[3]; |
| 75 | Double_t par5save = par[5]; |
| 76 | Double_t dx = x[0]-par1save; |
| 77 | // |
| 78 | // |
| 79 | Double_t sigma2 = par2save*par2save; |
| 80 | Double_t sqrt2 = TMath::Sqrt(2.); |
| 81 | if (-par3save*(dx-0.5*par3save*sigma2)>100) return 0; // avoid overflow |
| 82 | if (-par5save*(dx-0.5*par5save*sigma2)>100) return 0; // avoid overflow |
| 83 | if (TMath::Abs(par[4])>=1) return 0; |
| 84 | |
| 85 | Double_t exp1 = par3save*TMath::Exp(-par3save*(dx-0.5*par3save*sigma2)) |
| bb7e41dd |
86 | *0.5*(1-AliMathBase::ErfFast((par3save*sigma2-dx)/(sqrt2*par2save))); |
| ec143d80 |
87 | |
| 88 | Double_t exp2 = par5save*TMath::Exp(-par5save*(dx-0.5*par5save*sigma2)) |
| bb7e41dd |
89 | *0.5*(1-AliMathBase::ErfFast((par5save*sigma2-dx)/(sqrt2*par2save))); |
| ec143d80 |
90 | |
| 91 | |
| 92 | return par[0]*(1.*exp1+par[4]*exp2)/(1.+par[4]); |
| 93 | } |
| 94 | |
| 95 | |
| 96 | TF1 * AliSignalProcesor::GetAsymGauss() |
| 97 | { |
| 98 | TF1 * f1 = new TF1("asymg",asymgaussN,-10,40,6); |
| 99 | return f1; |
| 100 | } |
| 101 | |
| 102 | |
| 103 | |
| 104 | void AliSignalProcesor::SplineSmoother(Double_t *ampin, Double_t *ampout, Int_t n) |
| 105 | { |
| 106 | // |
| 107 | // |
| 108 | Float_t in[10000]; |
| 109 | Float_t out[10000]; |
| 110 | in[0] = ampin[0]; |
| 111 | in[1] = (ampin[0]+ampin[1])*0.5; |
| 112 | in[2*(n-1)] = ampin[n-1]; |
| 113 | in[2*(n-1)+1] = ampin[n-1]; |
| 114 | // |
| 115 | // add charge to the end |
| 116 | for (Int_t i=0;i<10;i++){ |
| 117 | in[2*(n-1)+i]=ampin[n-1]; |
| 118 | } |
| 119 | |
| 120 | // |
| 121 | for (Int_t i=1;i<n-1;i++){ |
| 122 | in[2*i] = ampin[i]; |
| 123 | in[2*i+1] = (9.*(ampin[i]+ampin[i+1])-(ampin[i-1]+ampin[i+2]))/16.; |
| 124 | } |
| 125 | // |
| 126 | out[0] = in[0]; |
| 127 | for (Int_t i=1;i<=2*n;i++){ |
| 128 | out[i] = (9.*(in[i]+in[i+1])-(in[i-1]+in[i+2]))/16.; |
| 129 | } |
| 130 | // |
| 131 | // |
| 132 | for (int i=0;i<n;i++){ |
| 133 | ampout[i] = out[2*i+1]; |
| 134 | } |
| 135 | } |
| 136 | |
| 137 | |
| 138 | |
| 139 | |
| 140 | void AliSignalProcesor::TailCancelationALTRO(Double_t *ampin, Double_t *ampout, Float_t K, Float_t L, |
| 141 | Int_t n) |
| 142 | { |
| 143 | // |
| 144 | // ALTRO |
| 145 | Float_t temp; |
| 146 | ampout[0] = ampin[0]; |
| 147 | temp = ampin[0]; |
| 148 | for (int i=1;i<n;i++){ |
| 149 | ampout[i] = ampin[i] + (K-L)*temp; |
| 150 | temp = ampin[i] + K*temp; |
| 151 | } |
| 152 | } |
| 153 | |
| 154 | // |
| 155 | // |
| 156 | void AliSignalProcesor::TailCancelationTRD(Double_t *ampin, Double_t *ampout, Float_t r, Float_t c, |
| 157 | Int_t n) |
| 158 | { |
| 159 | //TRD |
| 160 | // |
| 161 | Double_t reminder=0; |
| 162 | // |
| 163 | for (Int_t i=0; i<n; i++){ |
| 164 | ampout[i] = ampin[i]-reminder; |
| 165 | // |
| 166 | reminder = r*(reminder+c*ampout[i]); |
| 167 | } |
| 168 | |
| 169 | } |
| 170 | |
| 171 | void AliSignalProcesor::TailMaker(Double_t *ampin, Double_t *ampout, Float_t lambda, |
| 172 | Int_t n) |
| 173 | { |
| 174 | |
| 175 | Double_t l = TMath::Exp(-lambda); |
| 176 | // |
| 177 | Float_t temp=0; |
| 178 | for (Int_t i=n-1; i>0; i--){ |
| 179 | ampout[i] = ampin[i]+temp; |
| 180 | // |
| 181 | temp = l*(temp+ampin[i]); |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | void AliSignalProcesor::TailCancelationALTRO1(Double_t *ampin, Double_t *ampout, Float_t norm, |
| 186 | Float_t lambda, Int_t n) |
| 187 | { |
| 188 | |
| 189 | Double_t l = TMath::Exp(-lambda); |
| 190 | Double_t k = l*(1.-norm*lambda); |
| 191 | |
| 192 | return TailCancelationALTRO(ampin,ampout,k,l,n); |
| 193 | } |
| 194 | |
| 195 | |
| 196 | void AliSignalProcesor::TailCancelationTRD1(Double_t *ampin, Double_t *ampout, Float_t norm, |
| 197 | Float_t lambda, Int_t n) |
| 198 | { |
| 199 | // |
| 200 | // |
| 201 | Double_t r = TMath::Exp(-lambda); |
| 202 | Double_t c = norm*lambda; |
| 203 | return TailCancelationTRD(ampin,ampout,r,c,n); |
| 204 | } |
| 205 | |
| 206 | |
| 207 | |
| 208 | |
| 209 | void AliSignalProcesor::TailCancelationMI(Double_t *ampin, Double_t *ampout, Float_t norm, |
| 210 | Float_t lambda, Int_t n) |
| 211 | { |
| 212 | |
| 213 | Double_t L = TMath::Exp(-lambda*0.5); |
| 214 | Double_t K = L*(1.-norm*lambda*0.5); |
| 215 | // |
| 216 | // |
| 217 | Float_t in[10000]; |
| 218 | Float_t out[10000]; |
| 219 | for (Int_t i=0;i<n*2+20;i++){ |
| 220 | in[i] = 0; |
| 221 | out[i]= 0; |
| 222 | } |
| 223 | in[0] = ampin[0]; |
| 224 | in[1] = (ampin[0]+ampin[1])*0.5; |
| 225 | in[2*(n-1)] = ampin[n-1]; |
| 226 | in[2*(n-1)+1] = ampin[n-1]; |
| 227 | // |
| 228 | for (Int_t i=1;i<n-2;i++){ |
| 229 | in[2*i] = ampin[i]; |
| 230 | in[2*i+1] = (9.*(ampin[i]+ampin[i+1])-(ampin[i-1]+ampin[i+2]))/16; |
| 231 | } |
| 232 | // |
| 233 | Float_t temp; |
| 234 | out[0] = in[0]; |
| 235 | temp = in[0]; |
| 236 | for (int i=1;i<=2*n;i++){ |
| 237 | out[i] = in[i] + (K-L)*temp; |
| 238 | temp = in[i] + K*temp; |
| 239 | } |
| 240 | // |
| 241 | // |
| 242 | for (int i=0;i<n;i++){ |
| 243 | ampout[i] = out[2*i+1]; |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | |
| 248 | |
| 249 | |
| 250 | |
| 251 | void AliSignalProcesor::TailMakerSpline(Double_t *ampin, Double_t *ampout, Float_t lambda, |
| 252 | Int_t n) |
| 253 | { |
| 254 | |
| 255 | Double_t l = TMath::Exp(-lambda*0.5); |
| 256 | // |
| 257 | // |
| 258 | Float_t in[10000]; |
| 259 | Float_t out[10000]; |
| 260 | for (Int_t i=0;i<n*2+20;i++){ |
| 261 | in[i] = 0; |
| 262 | out[i]= 0; |
| 263 | } |
| 264 | in[0] = ampin[0]; |
| 265 | in[1] = (ampin[0]+ampin[1])*0.5; |
| 266 | in[2*(n-1)] = ampin[n-1]; |
| 267 | in[2*(n-1)+1] = ampin[n-1]; |
| 268 | // |
| 269 | // add charge to the end |
| 270 | for (Int_t i=0;i<10;i++){ |
| 271 | in[2*(n-1)+i]=ampin[n-1]; |
| 272 | } |
| 273 | |
| 274 | // |
| 275 | for (Int_t i=1;i<n-2;i++){ |
| 276 | in[2*i] = ampin[i]; |
| 277 | in[2*i+1] = (9.*(ampin[i]+ampin[i+1])-(ampin[i-1]+ampin[i+2]))/16; |
| 278 | } |
| 279 | // |
| 280 | // |
| 281 | Float_t temp; |
| 282 | out[2*n] = in[2*n]; |
| 283 | temp = 0; |
| 284 | for (int i=2*n;i>=0;i--){ |
| 285 | out[i] = in[i] + temp; |
| 286 | temp = l*(temp+in[i]); |
| 287 | } |
| 288 | // |
| 289 | // |
| 290 | for (int i=0;i<n;i++){ |
| 291 | ampout[i] = out[2*i+1]; |
| 292 | } |
| 293 | } |
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