Butterworth
1.) flat amplitude response
2.) Phase response is NOT linear
3.) phase shift is nonlinearly with frequency
4.) each frequency have a different time delay
Chebyshev
1.) overshoot and ripples
2.) Linear phase response
Bessel
1.) Linear phase response
2.) phase shifts are linear with frequency
All these types of filters are used for ONLY pulses wavefroms?
Well here you go again Walters :cry: in 7 posts in this thread you've managed about 24 questions and a few negative posts. Remember back a few weeks ago and did anything of what we said sink in. :shock: or is this thread part of your 500,000 questions your bombarding us with. Any normal student would go to the library and read a book to learn or search the net.
You know, we could use this as a chance to test our training in this stuff. How does the saying go? "To teach is to learn?" I wanna teach, learning sucks. :lol:
I'm not certain about this one, but I think the poles positions and their real vs. imaginary status has the dominant effect. Don't quote me on that though.