When simulating the response to a specific input signal, the input data U must be a matrix with as many rows as samples in the time vector T

Hi, this error is occurred.

Error using DynamicSystem/lsim

When simulating the response to a specific input signal, the input data U must be a matrix with as many rows as samples in the time vector T, and as many columns as input channels.

Error in untitleds (line 321)

[Responset_q_equi] = lsim(sysansq_equi , INPUT_equi , tempo);

I thought of solving by considering INPUT_equi as a 5-row vector, since the state space matrix B has 5 columns, and 1 column using function repmat but it doesn't work :( even considering the number of lines equal to that of the elements of the time vector does not work

This is the script (sysansq_equi is already defined in the previous part of the script that is not reported here)

%DEFINIZIONE ingressi nel tempo 

%load(['Published/','accDX_equi_QUARTER_CAR.dat'])                  
INPUT_DX_equi_QUARTER_CAR = accDX_equi_QUARTER_CAR(:,2);
tempo = accDX_equi_QUARTER_CAR(:,1);      % è uguale per ogni caso avendo ip. per ogni caso v = 4 m/s
                                          % cioè 14.4 km/h 

                                          
dt=mean(diff(tempo));   %calcola la media degli incrementi tra tempo(i) e tempo(i+1) per ogni i
Fmax=1/(2*dt);        % Nyquist -- Fmax = Fc/2

                                          
%load(['Published/','accSX_equi_QUARTER_CAR.dat'])                  
%INPUT_SX_equi_QUARTER_CAR = accSX_equi_QUARTER_CAR(:,2);

max(accDX_equi_QUARTER_CAR(:,2))
%max(accSX_equi_QUARTER_CAR(:,2))

INPUT_equi = INPUT_DX_equi_QUARTER_CAR;



[Responset_q_equi] = lsim(sysansq_equi , INPUT_equi , tempo);


figure (9)
plot(tempo,Responset_q_equi)
xlabel('Tempo [s]')
ylabel('q')
grid on 
legend('q1','q2','q3','q4','q5','q6','q7','q8','q9','q10')
title('Coordinate normali caso equiripartito')

[Federico Paolucci]

p.s. sysansq_equi doesn't contain errors