Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Homework Help
Engineering and Comp Sci Homework Help
Proving a system is LTI based on input and output
Reply to thread
Message
[QUOTE="robijnix, post: 4093720, member: 440473"] edit: you aren't proving it's LTI, you proving it COULD be lti [h2]Homework Statement [/h2] the question: could the following system be LTI? x(t)=-5cos(2t) --> y(t)=exp(-2tj)[h2]Homework Equations[/h2] the chapter is about eigenfunctions of LTI systems, which are of the form exp(st).[h2]The Attempt at a Solution[/h2] So my guess for what i had to do, was find a transfer function H(s), so that H(s)*x(s)=y(s). so i wrote x(t) as follows: x(t)=-5/2(exp(2*t*j)+exp(-2*t*j) so x(2)=-5/2(exp(st)+exp(-st)) with s=2j. so than i thought, H(s)=y(s)/x(s), but y and x are still functions of t, so i don't know what to do now... and btw laplace isn't explained until the next chapter so I'm not supposed to use that. the given answer is 'yes (H(s=2j)=0)'. so i think i do indeed need to do something with the transfer function. [/QUOTE]
Insert quotes…
Post reply
Forums
Homework Help
Engineering and Comp Sci Homework Help
Proving a system is LTI based on input and output
Back
Top