Re: [Discuss-gnuradio] usrp_siggen.py underruns

[Frank Brickle]

On Wed, Feb 11, 2009 at 6:03 PM, Eric Blossom <address@hidden> wrote:

 

Are you really trying to use the Gaussian PRNG?  If so you'll have to
fix it.  If you look at the code for it, you'll see that it samples a
distribution until it gets something it likes.

A classical reference for fast generation of random numbers under various distributions is

Lorrain, D. 1980. "A Panoply of Stochastic 'Cannons'." Computer Music Journal 4(1)

The common shortcut to Gaussian random sequences is to sum some number of uniform variates, usually 12, for each Gaussian output.

Frank

-- 
When small birds sighed, she would sigh back at them. -- Theodore Roethke