Question

3) Determine whether the systems : a) y En] = 0.5 a[n] + 2.5 u [n-2], lor nyo. b) y In J -_0.25% (n-1) + 0.5u[n+1)-0.47 {n-1}

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Causal System Definition ::

In control theory, a causal system (also known as a physical or non-anticipative system) is a system where the output depends on past and current inputs but not future inputs i.e., the output y(t0) depends on only the input x(t0) for values of t < t0.

Solutions ::

(a) y[n] = 0.5*u[n] + 2.5*u[n-2] , n >= 0

Ans :: Given y[n] is only depends on present and previous Inputs Signals . So this is a causal system

(b) y[n] = 0.25*u[n] + 0.5*u[n+1] - 0.4*y[n-1] , n>=0

Ans :: Given y[n] is depends not only on present and previous Inputs Signals but also with future input signals . So this is a non-causal system

Add a comment
Know the answer?
Add Answer to:
3) Determine whether the systems : a) y En] = 0.5 a[n] + 2.5 u [n-2],...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT