Posts tagged as:

raised cosine

Update: Correction in Matlab code for raised cosine filter

Thanks to the keen observation by Mr. Phan Minh Hoang, I was notified that the Matlab/Octave scripts provided along with the topic raised cosine filtering was not behaving properly.
Reason: I was not taking care of the division by zero when creating the raised cosine filter taps.
Please click here to [...]

7 comments Read the full article →

Eye diagram with raised cosine filtering

We have discussed about probable transmit pulse shaping filter and have observed that raised cosine filtering filtering allows a simpler implementation, albeit at the cost of increased bandwidth. Let us know understand the eye diagram, which is a useful graphical tool to quantify the degradation of the signal due to filtering.
Eye diagram
An eye diagram [...]

11 comments Read the full article →

Raised cosine filter for transmit pulse shaping

In the previous post on transmit filtering using Nyquist pulse, we had briefly learned that the information symbol with a symbol period can be transmitted without inter symbol interference (ISI) by using Nyquist pulse,
.
The resultant waveform is ideally bandlimited to frequencies from Hz to Hz.
However, in typical transmission schemes, we do not hear [...]

31 comments Read the full article →