Re: Care to give me the IFFT of this 64 lines of data?


"Erik de Castro Lopo" <nospam@xxxxxxxxxxxxx> wrote in message
news:4313D34D.334D869A@xxxxxxxxxxxxxxxx
> > Frank wrote:
> >
> > Thank you BobM, your result tally with mine.
> >
> > However, in the 802.11a specification, the result are like follows.
> > The format is one row with four pairs, numbered from with 0,1,2,3, etc.
> > The absolute values of both real and imaginary parts are fine, but pairs
> > with even number IDs have have opposite signs from our calculations.
> >
> > What happened with the difference in signs?
>
> It might arise from slightly different definitions of
> the FFT. Some people use exp (-jw) and some use exp(jw).
>
> Erik
>
> --

The specifications says IFFT for transmitter, so I expect it to be jw and
divide
the final sequence by 1/N. Anyway, I will keep this difference in mind and
get
my coding started.



.

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