function [sys] = identifyPlant(opts_param) %% Default values for opts opts = struct(); %% Populate opts with input parameters if exist('opts_param','var') for opt = fieldnames(opts_param)' opts.(opt{1}) = opts_param.(opt{1}); end end %% Options for Linearized options = linearizeOptions; options.SampleTime = 0; %% Name of the Simulink File mdl = 'sim_nano_station_id'; %% Input/Output definition io(1) = linio([mdl, '/Fn'], 1, 'input'); % Cartesian forces applied by NASS io(2) = linio([mdl, '/Dw'], 1, 'input'); % Ground Motion io(3) = linio([mdl, '/Fs'], 1, 'input'); % External forces on the sample io(4) = linio([mdl, '/Fnl'], 1, 'input'); % Forces applied on the NASS's legs io(5) = linio([mdl, '/Dsm'], 1, 'output'); % Displacement of the sample io(6) = linio([mdl, '/Fnlm'], 1, 'output'); % Force sensor in NASS's legs io(7) = linio([mdl, '/Dnlm'], 1, 'output'); % Displacement of NASS's legs %% Run the linearization G = linearize(mdl, io, 0); G.InputName = {'Fnx', 'Fny', 'Fnz', 'Mnx', 'Mny', 'Mnz', ... 'Dgx', 'Dgy', 'Dgz', ... 'Fsx', 'Fsy', 'Fsz', 'Msx', 'Msy', 'Msz', ... 'F1', 'F2', 'F3', 'F4', 'F5', 'F6'}; G.OutputName = {'Dx', 'Dy', 'Dz', 'Rx', 'Ry', 'Rz', ... 'Fm1', 'Fm2', 'Fm3', 'Fm4', 'Fm5', 'Fm6', ... 'Dm1', 'Dm2', 'Dm3', 'Dm4', 'Dm5', 'Dm6'}; %% Create the sub transfer functions % From forces applied in the cartesian frame to displacement of the sample in the cartesian frame sys.G_cart = minreal(G({'Dx', 'Dy', 'Dz', 'Rx', 'Ry', 'Rz'}, {'Fnx', 'Fny', 'Fnz', 'Mnx', 'Mny', 'Mnz'})); % From ground motion to Sample displacement sys.G_gm = minreal(G({'Dx', 'Dy', 'Dz', 'Rx', 'Ry', 'Rz'}, {'Dgx', 'Dgy', 'Dgz'})); % From direct forces applied on the sample to displacement of the sample sys.G_fs = minreal(G({'Dx', 'Dy', 'Dz', 'Rx', 'Ry', 'Rz'}, {'Fsx', 'Fsy', 'Fsz', 'Msx', 'Msy', 'Msz'})); % From forces applied on NASS's legs to force sensor in each leg sys.G_iff = minreal(G({'Fm1', 'Fm2', 'Fm3', 'Fm4', 'Fm5', 'Fm6'}, {'F1', 'F2', 'F3', 'F4', 'F5', 'F6'})); % From forces applied on NASS's legs to displacement of each leg sys.G_dleg = minreal(G({'Dm1', 'Dm2', 'Dm3', 'Dm4', 'Dm5', 'Dm6'}, {'F1', 'F2', 'F3', 'F4', 'F5', 'F6'})); end