Mercurial > hg > ltpda
comparison m-toolbox/test/test_specwin_nenbw_definition.m @ 0:f0afece42f48
Import.
| author | Daniele Nicolodi <nicolodi@science.unitn.it> |
|---|---|
| date | Wed, 23 Nov 2011 19:22:13 +0100 |
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| -1:000000000000 | 0:f0afece42f48 |
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| 1 % Test specwin/specwin normalized equivalent noise bandwidth definition. | |
| 2 % | |
| 3 % M Hueller 06-03-09 | |
| 4 % | |
| 5 % $Id: test_specwin_nenbw_definition.m,v 1.1 2009/03/06 09:26:28 mauro Exp $ | |
| 6 % | |
| 7 win_names = {'Rectangular', ... | |
| 8 'Welch', ... | |
| 9 'Bartlett', ... | |
| 10 'Hanning', ... | |
| 11 'Hamming', ... | |
| 12 'Nuttall3', ... | |
| 13 'Nuttall4', ... | |
| 14 'Nuttall3a', ... | |
| 15 'Nuttall3b', ... | |
| 16 'Nuttall4a', ... | |
| 17 'Nuttall4b', ... | |
| 18 'Nuttall4c', ... | |
| 19 'BH92', ... | |
| 20 'SFT3F', ... | |
| 21 'SFT3M', ... | |
| 22 'FTNI', ... | |
| 23 'SFT4F', ... | |
| 24 'SFT5F', ... | |
| 25 'SFT4M', ... | |
| 26 'FTHP', ... | |
| 27 'HFT70', ... | |
| 28 'FTSRS', ... | |
| 29 'SFT5M', ... | |
| 30 'HFT90D', ... | |
| 31 'HFT95', ... | |
| 32 'HFT116D', ... | |
| 33 'HFT144D', ... | |
| 34 'HFT169D', ... | |
| 35 'HFT196D', ... | |
| 36 'HFT223D', ... | |
| 37 'HFT248D'}; | |
| 38 | |
| 39 % Different parameters for the Kaiser window family | |
| 40 psll = [50:50:300]; | |
| 41 % Lenght of the window | |
| 42 npts = 100; | |
| 43 | |
| 44 N = length(win_names); | |
| 45 M = length(psll); | |
| 46 def_dif = zeros(N+M,1); | |
| 47 | |
| 48 % All windows but Kaiser | |
| 49 for jj = 1:N | |
| 50 w = specwin(win_names{jj},npts); | |
| 51 % Definition from the specwin constructor (included in a helper dedicated | |
| 52 % to each window) | |
| 53 d1 = w.nenbw; | |
| 54 % Definition from the "theory" | |
| 55 d2 = w.ws2/(w.ws)^2/fs*length(w.win); | |
| 56 % Relative difference | |
| 57 def_dif(jj) = (d1-d2)/mean([d1,d2]); | |
| 58 disp([win_names{jj} ' ' num2str(def_dif(jj))]); | |
| 59 end | |
| 60 | |
| 61 % Kaiser windows | |
| 62 for jj = N+1:N+M | |
| 63 w = specwin('Kaiser',psll(jj-N),npts); | |
| 64 % Definition from the specwin constructor (included in a helper dedicated | |
| 65 % to each window) | |
| 66 d1 = w.nenbw; | |
| 67 % Definition from the "theory" | |
| 68 d2 = w.ws2/(w.ws)^2/fs*length(w.win); | |
| 69 % Relative difference | |
| 70 def_dif(jj) = (d1-d2)/mean([d1,d2]); | |
| 71 disp(['Kaiser' num2str(psll(jj-N)) ' ' num2str(def_dif(jj))]); | |
| 72 end |