Hi
If u are familiar with CFT, u should learn the following sunjects (in order):
DTFT
DFS
DFT
DCT
and how?
the way that i learned was : reading the selected chapters of :
"Discrete time signal processing" by Oppenheim. (chapters : 2 - 8 - 9)
u can read any other DSP books.
bye
hi,
Im uploading a pdf which explains in very simple terms what is the Difference
between DCT and DFT, how DCT is derived from DFT and many other elementary
things one needs to know about the two transforms. Im sure it would make for
a good read.
We usually view a signal in the time domain but we don't get any information about its frequency components. So we need to view it in the spectral domain, so both of these transforms give a basis for representing/finding/viewing of the frequency components of the signal.