# What Are Some Examples of Applications of LTI Systems

I'm giving a lecture on LTI systems. I encountered some questions:

1. for a discrete LTI system H with impulse response h, is the system applied on signal x(t) equals x*h - normal discrete convolution or the cyclic convolution?

2. can you please give me some examples of useful LTI systems? such as Prewitt or Roberts edge detection, and gauss smoothing.

Thanks.

• Electrical engineering is based off linear systems. – Scott Jul 28 '14 at 2:33
• If you are giving a lecture on LTI systems, I hope for the sake of your audience that you have a better grasp of the subject than your questions seem to indicate. – Dilip Sarwate Jul 29 '14 at 1:30
• "give me some examples of useful LTI system". With all due respect that's a bizarre question. LTI is one of the most fundamental concepts in science and technology and it's been used extensively in creating your car, your phone, your house, your lights, your TV, the medical equipment at your doctor's, etc. – Hilmar Dec 19 '16 at 13:59

2. The Matched Filter used for estimation and detection.