Forum Discussion

SGold21's avatar
SGold21
Icon for New Contributor rankNew Contributor
6 years ago

FFT Matlab Model

I am an algorithms engineer. I want to use a 2048 bins FFT, streaming mode, block fixed point, 16 bit for both twiddle and data. I am running the Matlab model trying to understand the behaviour and...
SGold21's avatar
SGold21
Icon for New Contributor rankNew Contributor
6 years ago

Hi,

The Matlab matches the fpga simulations. So that's not a "hardware" problem.

I am trying to understand the rational of the results I get - the main issue - why the output precision is usually much less than the 16 bits of input.

Thanks