Hilbert transformation for signals with GSL ?

[Axel Hutt]

Dear all,

I have tried to implement a Hilbert transformation with
GSL. This works quite fine with gsl_integration_qawc for
a given function in analytical form as numerator. But it 
turns out, that the function can not be discrete (e.g. 
as a sampled signal) due to the undelying bisection 
algorithm. 

Did anybody implement the Hilbert trafo with GSL for 
discrete functions?

Thanks in advance for any hint.

Axel