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Message
From: ghittori@e...
Date: Mon, 30 Jun 2003 11:24:07 -0100
Subject: Re: [oc] SNR Calculation using CADENCE SpectreS tool
Hi,
have you got an example of Matlab routine for the SNR calculation? I',
not able to find a general way to extract the signal component from my
frame of data (the signal is always located in more frequency bins)
Thank you for yor help,
Nicola
----- Original Message -----
From: gu2@u...
To: cores@o...
Date: Tue, 28 May 2002 00:29:27 +0200
Subject: Re: [oc] SNR Calculation using CADENCE SpectreS tool
>
>
> Hi,
>
> You may first sample you datas from your modulator output
> using 'sample' function and save them, then you can calculate SNR
> with
> MATLAB.
>
> Hope this helps
> gu
> ----- Original Message -----
> From: adesh_b@a...
> To: cores@o...
> Date: Wed, 20 Feb 2002 21:27:53 +0100
> Subject: Re: [oc] SNR Calculation using CADENCE SpectreS tool
>
> >
> >
> > did u find a way to determine the snr of a signal using matlab
> > tools whether using the commands or in simulink.
> > If so please provide me with help.
> > send reply to:
> >
> > adesh_b@a...
> >
> > thank u!
> >
> > ----- Original Message -----
> > From: electronicszone@y...
> > To: cores@o...
> > Date: Fri, 3 Aug 2001 16:19:18 +0200
> > Subject: [oc] SNR Calculation using CADENCE SpectreS tool
> >
> > >
> > >
> > > Dear Sir,
> > > I am working on a Sigma-delta
> ADC.
> > > Currently I am working on CADENCE spectreS
> tool
> > to
> > > simulate the modulator.
> > >
> I
> > have a
> > > second order modulator . The bandwidth of the input is
> > 12.5MHz. The
> > > oversampling ratio is only four (so sampling freq. is
> 100MHz).
> > I am
> > > working on a cascaded (MASH) modulator in which the
> second
> > stage is
> > > a 10-bit Pipelined ADC. The flash ADC inside the
> modulator is
> > a
> > > 4-bit one. Currently, I have designed the 2nd order
> modulator
> > using
> > > Switched capacitor filters. Now, I want to calculate the
> > Signal to
> > > Noise ratio at the output of the Modulator. Can you
> please
> > help me
> > > how to calculate SNR using CADENCE? Since, I have just
> started
> > > working on CADENCE, i don't know much the features of
> this
> > tool.
> > > While doing its behavioral
> simulation in MATLAB, i used
> > the
> > > PSD command in the MATLAB and since I know the input
> signal
> > > frequency, I calculated the signal power and the rest as
> the
> > Noise
> > > power to get the SNR. I thought to use that SNR routine
> only
> > (as i
> > > used in MATLAB) to calculate the SNR of the output of the
> > modulator
> > > generated in CADENCE spectreS tool. But the problem is
> that
> > this
> > > tool, during its transient analysis, does not generate
> samples
> > at
> > > regular interval. So, i cant use the PSD command
> available in
> > > MATLAB to calculate the PSD of the output of the
> modulator to
> > > calculate the SNR.
> > > Sir, please give me a suitable solution for the same.
> > > waiting for a positive reply.
> > > Thanking You
> > > Yours sincerely
> > > Lokesh Kumath
> > >
> >
>
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