Re: [Discuss-gnuradio] ofdm_sync_sc_cfb missing square operation in "delay path"

[Tiankun Hu]

Sorry, I got a mistake, magsquare has done a square operation

output[0][m] = Re{input[0][m]}^2 + Im{input[0][m]}^2

在 2014年08月02日 16:29, Tiankun Hu 写道:
> Hi Martin,
> I was looking ofdm_sync_sc_cfb block, I found in delay path,
> "delay_magsquare" directly connect to "delay_normalize", but according
> S&C's paper, "delay_magsquare" need do square operation like "Energy Path".
> M(d)=|P(d)|^2/(R(d))^2
>
> Seems in your code that numerator P(d) missing ^2,
> but when I add a square operation in P(d), the ofdm_loopback's result
> was wrong.
>
> --
> Thanks
> Tiankun
>
>
>
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--
Thanks
Tiankun