Will the spectra of the transmitted and received signal be different as a result of multipath reflection and noise?
LoL, man! Were we in the same class?!?!? We did the same thing, just in matlab (since it was easier to import the images), I was truly amazed when i developed my first low-pass filter in time domain (using moving kernel technique), the most amazing thing about that was that i could do every thing photoshop could just using my own skills ;) Same thing goes for Wiener filtering, i just could not believe that reasonably easy calculations could provide us with such an amazing result! :surprisedThanks for the better explanation.
Indeed, Image Processing was a fun class. By the end of the class, you made a program in C++ that was a mini-photoshop, with your own custom filtering routines! :)
Thanks for the explanation!
Another qn, which of the following is the best technique to measure the response of an audio equalizer?
a. input known sinusoid, measure output, change freq and repeat
b. input impules, measure output, change freq and repeat
c. input unit step, measure output, change freq and repeat
d. all gives the same result
In the real world, to measure the transfer function of the equalizer, you would use the Gain-Phase side of an analyzer like the HP 4194. Maybe check out how the Gain-Phase measurement is done on this type of insrument. (Hint -- it does not use impulses.)For measuring the response, my ans is (d). I feel that it shd be ok to input either sinusoids, impulses or even unit step. although the best approach will be to use a sinusoid, bcos using impulses may have a tendency to spoil the loudspeaker. correct me if i'm wrong.
As for the qn on multipath, am i right to say that since multipath distorts the phase spectrum, but do no changes to the amplitude spectrum?