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