Mercurial > hg > ltpda
comparison m-toolbox/classes/+utils/@math/ri2fq.m @ 0:f0afece42f48
Import.
| author | Daniele Nicolodi <nicolodi@science.unitn.it> |
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| date | Wed, 23 Nov 2011 19:22:13 +0100 |
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| -1:000000000000 | 0:f0afece42f48 |
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| 1 % RI2FQ Convert complex pole/zero into frequency/Q pole/zero representation. | |
| 2 % | |
| 3 % [f0, q]= ri2fq(c) | |
| 4 % | |
| 5 % M Hewitson 26-01-07 | |
| 6 % | |
| 7 % $Id: ri2fq.m,v 1.3 2008/10/24 09:40:19 hewitson Exp $ | |
| 8 % | |
| 9 | |
| 10 function [f0, q]= ri2fq(c) | |
| 11 | |
| 12 if(nargin==0) | |
| 13 disp('usage: [f0, q]= ri2fq(c)'); | |
| 14 return | |
| 15 end | |
| 16 | |
| 17 a = real(c(1)); | |
| 18 b = imag(c(1)); | |
| 19 | |
| 20 f0 = sqrt(a^2 + b^2)/(2*pi); | |
| 21 q = 0.5*sqrt(1 + b^2/a^2); | |
| 22 | |
| 23 end | |
| 24 % END |