Re: [Discuss-gnuradio] Fwd: Creating a FFT plot like the one in this youtube variable

[Mike Harpe]

Seconded.

I am a reader of this list. I am working to learn DSP using Gnuradio and I can tell you firsthand that you have got to do the reading. DSP is very complex math. If you don't have that background it's very slow going. I have had to re-learn trigonometry and basic calculus just to read the introductory material. It's starting to make sense after investing months of hobby time in it.

This list is an invaluable resource as well.

Mike Harpe, N4PLE

Sellersburg, IN

On Thu, Jul 23, 2015 at 9:27 AM, Marcus Müller <address@hidden> wrote:

Hi Ashraf,

A single complex sine tone will only have one spectral peak.
I think you will see great profit in understanding a bit of the math/signal theory involved. GNU Radio has a suggested reading page, especially made for these cases:
https://gnuradio.org/redmine/projects/gnuradio/wiki/SuggestedReading
Go through Michael Ossman's tutorial (under Math).

In fact, reading through that list, there's a distinct lack of free ressources that bridge the gap between "why? and what are complex signals?" and digital communication basics, ie. stuff like "what is the spectrum/a fourier transform".
If you have access to a university library or so, grab a book on basics of signals and linear systems; like in every mature scientific community, there's some healthy dispute on what students should be having access to, but if you're looking for something relative precise, yet not too mathematical and free, have a look at Lapidoth, which is available here as a PDF:
http://www.afidc.ethz.ch/A_Foundation_in_Digital_Communication/Getting_The_Book.html
Read chapters 2 and 6.

Best regards,
Marcus


_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio