[SI-LIST] Re: Differential Power-sum FEXT equation.
- From: Fisayo Adepetun <fisayo.adepetun@xxxxxxxxx>
- To: shlepnev@xxxxxxxxxxxxx, ray.anderson@xxxxxxxxxx
- Date: Mon, 23 Feb 2015 14:46:29 -0500
Thanks for you quick response Yuriy and Ray!
Yuriy, Just to be sure your point is correctly understood.
In my case if Diff pair 1 is the victim and I have 5 aggressor pairs and
fext1 = dB(St(Di,Dk)), fext2=dB(St(Di,Dk1) etc.
is the* diff_PS_FEXT =
10*log10[(abs(fext1)^2)+(abs(fext2)^2)+(abs(fext3)^2)+(abs(fext4)^2)+(abs(fext5)^2)]?*
*- Fisayo*
On Mon, Feb 23, 2015 at 2:27 PM, Yuriy Shlepnev <shlepnev@xxxxxxxxxxxxx>
wrote:
> Fisayo,
>
> Here is how to do it in very simple way (and exactly as defined in the
> 802.03).
>
> 1) Identify differential aggressors for differential port i - ports with
> numbers k for instance.
> 2) Compute magnitudes of differential transmission parameters from ports k
> to port i
> 3) Compute PSFEXT=10*log10( SUM(|S[Di,Dk]|^2) ) or any other PSXT
>
> As you can see this is 10*log10 of sum of power (square of transmission
> parameters magnitude) transmitted from the aggressors to the victim.
>
> Best regards,
> Yuriy
>
> Yuriy Shlepnev, Ph.D.
> President, Simberian Inc.
> 3030 S Torrey Pines Dr. Las Vegas, NV 89146, USA
> Office +1-702-876-2882; Fax +1-702-482-7903
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>
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>
>
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
> On
> Behalf Of Fisayo Adepetun
> Sent: Monday, February 23, 2015 10:22 AM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Differential Power-sum FEXT equation.
>
> Hello there,
> Does anyone know what the diff PS-FEXT equation is?
>
> Any help will be appreciated.
>
> Thanks!
>
> - Fisayo
>
>
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