does this look like I'm clipping?

Hi all,

I am trying to tune a board to receive a sine wave. When I use the
standard code to tune it, I get the following I/Q plot:
http://cyprus.cmcl.cs.cmu.edu/tmp/flex_graphs/sine_regular_rvi.jpg

Whenever I try to tune it myself, I get the following:
http://cyprus.cmcl.cs.cmu.edu/tmp/flex_graphs/is_this_clipping.jpg

It seems like the circle is pushed inwards on the four corners of the
resulting graph. Is this a result of clipping?

Thanks!
George
.

Relevant Pages

  • Re: does this look like Im clipping?
    ... I am trying to tune a board to receive a sine wave. ... standard code to tune it, I get the following I/Q plot: ... It doesn't look like clipping or even wraparound to me. ...
    (comp.dsp)
  • Re: does this look like Im clipping?
    ... I am trying to tune a board to receive a sine wave. ... standard code to tune it, I get the following I/Q plot: ... It doesn't look like clipping or even wraparound to me. ...
    (comp.dsp)
  • Re: does this look like Im clipping?
    ... I am trying to tune a board to receive a sine wave. ... standard code to tune it, I get the following I/Q plot: ... You may be getting wrap-around ...
    (comp.dsp)