tdehaeze/nass-metrology-test-bench
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Thomas Dehaeze 2019-09-10 16:35:11 +02:00
parent 49e8efbb02
commit 13cf686ad0
1 changed files with 35 additions and 17 deletions
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index.org
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@ -1,17 +1,3 @@
<<<<<<< HEAD
#+TITLE:Test of Cercalo
:DRAWER:
#+STARTUP: overview
#+HTML_HEAD: <script type="text/javascript" src="../js/readtheorg.js"></script>
#+PROPERTY: header-args:matlab :session *MATLAB*
#+PROPERTY: header-args:matlab+ :comments org
#+PROPERTY: header-args:matlab+ :results output
#+PROPERTY: header-args:matlab+ :exports both
#+PROPERTY: header-args:matlab+ :eval no-export
#+PROPERTY: header-args:matlab+ :output-dir figs
:END:
=======
#+TITLE: Cercalo Test Bench #+TITLE: Cercalo Test Bench
:DRAWER: :DRAWER:
#+STARTUP: overview #+STARTUP: overview
@ -62,11 +48,43 @@ c2d(Gi, Ts, 'tustin')
ans = ans =
0.059117 (z+1) 0.030459 (z+1)
-------------- --------------
(z-0.8818) (z-0.9391)
Sample time: 0.0001 seconds Sample time: 0.0001 seconds
Discrete-time zero/pole/gain model. Discrete-time zero/pole/gain model.
#+end_example #+end_example
>>>>>>> add index.org
#+begin_src matlab
load('mat/data_001.mat', 't', 'ux')
#+end_src
#+begin_src matlab
figure; plot(t, ux)
#+end_src
#+begin_src matlab
[tf_est, freqs] = tfestimate(ux, yx, hanning(ceil(length(ux)/10)), [], [], fs);
% h = idfrd(tf_est, freqs*2*pi, Ts);
#+end_src
#+begin_src matlab
figure;
ax1 = subplot(2, 1, 1);
hold on;
plot(freqs, abs(tf_est),'--')
set(gca, 'XScale', 'log'); set(gca, 'YScale', 'log');
ylabel('Amplitude [m/N]');
hold off;
ax2 = subplot(2, 1, 2);
hold on;
plot(freqs, mod(180+180/pi*phase(tf_est), 360)-180,'--')
set(gca,'xscale','log');
ylim([-180, 180]);
yticks([-180, -90, 0, 90, 180]);
xlabel('Frequency [$Hz$]'); ylabel('Phase [deg]');
hold off;
#+end_src