if order == 2 sys1 = tf([1], [1/(omega^2) 1.4142/omega 1]); d_sys = c2d(sys1,Ts); x = d_sys.num{1} %%error is here
y = d_sys.den{1} %%error is here set_param([gcb '/filter_1'], 'SampleTime', 'Ts'); set_param([gcb '/filter_1'],'Numerator', 'x', 'Denominator', 'y')elseif order == 1 sys1 = tf([1], [1/omega 1]); d_sys = c2d(sys1,Ts); x = d_sys.num{1} %%error is here y = d_sys.den{1} %%error is here set_param([gcb '/filter_1'], 'SampleTime', 'Ts', 'Numerator','x','Denominator', 'y');else fprintf('Error');end
In my code I am initializing a mask for a block I made. "filter_1" is a discrete time transfer function, and I am trying to set the numerator and denominator parameters. There error I am recieving is:
"Error in 'butter/Subsystem': Initialization commands cannot be evaluated. Caused by: Invalid setting in 'butter/Subsystem/filter_1' for parameter 'Numerator'."
I am just trying to extract the numerator and denominator coefficients from 'd_sys' and use those to intialize my block. Help! Thanks in advance.
Best Answer