[hpsdr] "Taylor Corrected DDS"

[Eric Blossom]

On Thu, Jun 15, 2006 at 03:37:37PM +0200, Alberto I2PHD wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Bob,
> 

> what about precomputing a table with 2^18 = 262144 entries of cosine
> values between 0 and pi/2 and indexing into > that, with a
> zero-order interpolation, taking the value of the nearest index ? 
> Wouldn't that be both fast and accurate ? > Granted, you use some
> RAM, but RAM is not a scarce resource nowadays...

RAM in FGPA's is scarce.  You're talking about 512K bytes of RAM.

Eric
K7GNU

 1150390111.0