Re: [Discuss-gnuradio] anyone implement the Raleigh fading model/multi-path?

[Richard Clarke]

Hi George,

I have had a Summer student doing some work on this (a year ago now). He 
implemented a GNU Radio module that can do Rayleigh channel simulation. 
He based it on a particular paper (I'd have to look it up) for the 
implementation. He verified the statistical performance of his 
implementation against the Matlab Rayleigh channel model and against 
theory and found it to be a close match. I'm not entirely convinced of 
the delayed multiple path aspects of the design/implementation but 
haven't had time to look into it further. In fact as it stands I believe 
the GNU Radio module (at C++ level) only handles a single flat fading 
path and doing multiple delayed paths is done at the python module level 
and which invokes multiple instances of the Flat fading Rayleigh C++ GNU 
Radio module.

I'd welcome another set of eyes and someone more experienced than I am 
with GNU Radio to help finish off this potentially very useful addition 
to the GNU Radio code base.

Cheers
Richard


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