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Transfer the phase noise characteristics from matlab to simulink

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hanikapa

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Hello,
i have the phase noise characteristics of vco in matlab. I want to transfer this to simulink for further processing. Does anybody have an idea that how it can be done?
Thanks
 

Re: transfer the phase noise characteristics from matlab to simulink

i have the phase noise characteristics of vco in matlab.
Describe in detail.

What characteristics do you have ?

Frequency Domain Data such as Noise PSD ?
Time Domain Data such as Jitter ?

Can you understan "Equivalent Lowpass Model" ?
 

Re: transfer the phase noise characteristics from matlab to simulink

it is frequency domain characteristics pnoise.png
I want to use this phase noise characteristics in simulink.
I used the code in the following link for the phase noise simulation:
http://www.dsplog.com/2012/09/30/modeling-phase-noise-frequency-domain/
 

Re: transfer the phase noise characteristics from matlab to simulink

it is frequency domain characteristics
I want to use this phase noise characteristics in simulink.
Simulink is a time-domain simulator.

You have to shape white gaussian noise by filter.
Here you have to generate noise_phase(time) or "noise_I(time) and noise_Q(time)".

Again can you understand "Equivalent Lowpass Model" ?
 
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Re: transfer the phase noise characteristics from matlab to simulink

what is Equivalent Lowpass Model?
 

Re: transfer the phase noise characteristics from matlab to simulink

yes, I understand this model but I have problem that I don't know how to add the phase noise of VCO in the model
 

Re: transfer the phase noise characteristics from matlab to simulink

yes, I understand this model but I have problem that I don't know how to add the phase noise of VCO in the model
Output of Phase Domain Model is phase.
So Simply add phase noise(time) to output of Phase Domain Model.
 
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