Add metrology element (change of base, computation of error)

Lot's of new things:
- try to use less .mat files
- computation of setpoint and error in the cartesian frame fixed to the granite
- change of base to have the errors w.r.t. the NASS base
- add script to plot setpoint, position and error

Analysis/analysis_perturbations.m

@@ -5,7 +5,7 @@ clear; close all; clc;
 load('./mat/G_xg_to_d.mat', 'G_xg_to_d');
 
 %% Load shape of the perturbation
-load('./mat/weight_Wxg.mat', 'Wxg');
+load('./mat/perturbations.mat', 'Wxg');
 
 %% Effect of the perturbation on the output
 freqs = logspace(-1, 3, 1000);

Analysis/effect_ground_motion.m

@@ -5,7 +5,7 @@ clear; close all; clc;
 load('./mat/Gd_ol_cl.mat', 'Gd_ol_20', 'Gd_cl_20');
 
 %%
-load('./mat/weight_Wxg.mat', 'Wxg')
+load('./mat/perturbations.mat', 'Wxg')
 
 %%
 load('./mat/G_gm_to_dh.mat', 'G_gm_to_dh')
@@ -44,5 +44,3 @@ set(gca, 'XScale', 'log');
 % set(gca, 'YScale', 'log');
 xlabel('Frequency [Hz]'); ylabel('CAS [m]');
 hold off;
-
-

Analysis/ground_motion_ol_cl.m

@@ -123,7 +123,7 @@ exportFig('gm_control_psd_y', 'normal-normal')
 
 %% Compare OL and CL - PSD
 load('./mat/G_xg_to_d.mat', 'G_xg_to_d');
-load('./mat/weight_Wxg.mat', 'Wxg');
+load('./mat/perturbations.mat', 'Wxg');
 load('./mat/T_S.mat', 'S', 'T');
 
 freqs = logspace(-1, 3, 1000);