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Message
From: stevepkwong@h...
Date: Sat, 27 Sep 2003 06:20:10 +0200
Subject: Re: [oc] SNR Calculation using CADENCE SpectreS tool
----- Original Message -----
From: ghittori@e...
To: cores@o...
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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