Re: [Discuss-gnuradio] Convert recorded FM wav file to I,Q values

[Cinaed Simson]

On 06/28/2017 10:55 PM, Jahnavendra Mattipa wrote:
> Hello all,
>    Is there any possibility to convert the recorded FM 'wav' file to I,Q
> values, if possible please tell me how to do this?

Well it depends upon what you mean by 'wav' file.

For a real valued signal with constant amplitude - my guess as to what
you mean, namely

 Acos(wt+phi)

use the trigonometric identity

  cos(wt+phi)=cos(wt)cos(phi)-sin(wt)sin(phi)

- which is easy to derive from complex exponentials.

Then set

  I=Acos(phi)
  Q=Asin(phi)

Hence

  Acos(wt+phi)=Icos(wt)-Qsin(wt)

-- Cinaed

> 
> 
> Best reagards,
> M. Jahnvendra
> 
> 
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>