DQPSK - Quadrature Processing projects

Hi All,

I new to DSP and and trying to get all my fundamentals correct. I am
currently studying Differential Quadrature Phase shift keying. I have
gone through theory of the modulation techniques (XIONG) and
quadrature processing (lyons).

But the theory doesnt sink in for me unitil i see a practical example.
Are there any online project on FPGA or DSP that I can use to
understand the concepts ?

I did a lot of googleing but only got theoretical links.

BR
Niladri Bose

ratemonotonic wrote:
> Hi All,
> 
> I new to DSP and and trying to get all my fundamentals correct. I am
> currently studying Differential Quadrature Phase shift keying. I have
> gone through theory of the modulation techniques (XIONG) and
> quadrature processing (lyons).
> 
> But the theory doesnt sink in for me unitil i see a practical example.
> Are there any online project on FPGA or DSP that I can use to
> understand the concepts ?

Rather then running an implementation it might be better that you first
do some simulation. The advantage here is that you can display signals
in all stages of your implementation, which always helped me in
understanding things better.

Matlab, Octave, Scilab, or if you like Python, scipy are some starting
points. For C++ there is a IT++ library, but it does not provide so nice
visualization as the earlier named ones.

Cheers,

Guenter