Range = [0,1]; Band = [0 1]; u1 = idinput([100,1,1],'prbs',Band,Range);,/pre>
How can I, for example, take this digital binary signal and convert it into an analog signal so I can use it in in a system response with a transfer function thru lsim.
For example:
sys = tf([8 18 32],[1 6 14 24]); t = 0:0.01:4; u = (this is the converted digital binary signal(u1)->analog signal) outputResposne=lsim(sys,u,t)
Prashant Kumar answered . 2024-04-26 12:11:59
Range = [0,1]; Band = [0 1]; u1 = idinput([401,1,1],'prbs',Band,Range);
Warning: The PRBS signal delivered is the 401 first values of a full sequence of length 511.
sys = tf([8 18 32],[1 6 14 24])
sys =
8 s^2 + 18 s + 32
-----------------------
s^3 + 6 s^2 + 14 s + 24
Continuous-time transfer function.
figure bode(sys) grid
figure step(sys) grid
t = 0:0.01:4;
u = u1;
outputResponse=lsim(sys,u,t);
figure
plot(t,outputResponse, '-')
hold on
plot(t,u, '--')
hold off
grid
xlabel('Time (s)')
ylabel('Amplitude')
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