commit

index.org

@@ -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
 :DRAWER:
 #+STARTUP: overview
@@ -62,11 +48,43 @@ c2d(Gi, Ts, 'tustin')
 
 ans =
 
-  0.059117 (z+1)
+  0.030459 (z+1)
   --------------
-    (z-0.8818)
+    (z-0.9391)
 
 Sample time: 0.0001 seconds
 Discrete-time zero/pole/gain model.
 #+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