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annotate m-toolbox/classes/@ao/ngconv.m @ 0:f0afece42f48

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Import.
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Wed, 23 Nov 2011 19:22:13 +0100
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 % NGCONV is called by the function fromPzmodel
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Daniele Nicolodi <nicolodi@science.unitn.it>
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2 % it takes the pole zero model pzm (user input to ao constructor)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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3 % as input and returns as
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Daniele Nicolodi <nicolodi@science.unitn.it>
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4 % outputs:
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Daniele Nicolodi <nicolodi@science.unitn.it>
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5 % - a: numerator coefficients
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Daniele Nicolodi <nicolodi@science.unitn.it>
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6 % - b: denominator coefficients
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Daniele Nicolodi <nicolodi@science.unitn.it>
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7 % of the target transfer function
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Daniele Nicolodi <nicolodi@science.unitn.it>
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8 % A Monsky 24-07-07
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Daniele Nicolodi <nicolodi@science.unitn.it>
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9 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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10 % $Id: ngconv.m,v 1.4 2008/10/20 08:38:29 anneke Exp $
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Daniele Nicolodi <nicolodi@science.unitn.it>
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11
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Daniele Nicolodi <nicolodi@science.unitn.it>
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12 function [a,b] = ngconv(pzm)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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13
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Daniele Nicolodi <nicolodi@science.unitn.it>
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14 zs = pzm.zeros;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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15 ps = pzm.poles;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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16
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Daniele Nicolodi <nicolodi@science.unitn.it>
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17 f_zer = zeros(length(zs));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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18 q_zer = zeros(length(zs));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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19 for j=1:length(zs)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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20 z = zs(j);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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21 f_zer(j,1) = z.f;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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22 q_zer(j,1) = z.q;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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23 %if isnan(q_zer(j))
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Daniele Nicolodi <nicolodi@science.unitn.it>
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24 % q_zer(j,1) = 0;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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25 %end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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26 %zv(j,1:2) = [f q];
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Daniele Nicolodi <nicolodi@science.unitn.it>
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27 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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28
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Daniele Nicolodi <nicolodi@science.unitn.it>
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29 f_pol = zeros(length(ps));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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30 q_pol = zeros(length(ps));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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31 for j=1:length(ps)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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32 p = ps(j);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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33 f_pol(j,1) = p.f;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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34 q_pol(j,1) = p.q;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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35 %if isnan(q_pol(j))
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Daniele Nicolodi <nicolodi@science.unitn.it>
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36 % q_pol(j,1) = 0;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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37 %end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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38 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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39
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Daniele Nicolodi <nicolodi@science.unitn.it>
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40 %%% calculate factors from f and q
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Daniele Nicolodi <nicolodi@science.unitn.it>
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41 pol = ao.fq2fac(f_pol,q_pol);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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42 zer = ao.fq2fac(f_zer,q_zer);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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43
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Daniele Nicolodi <nicolodi@science.unitn.it>
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44 %%%
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Daniele Nicolodi <nicolodi@science.unitn.it>
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45 [b,a] = ao.conv_noisegen(pol,zer);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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46 end
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47
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48