system Noise

[pooja rawat]

Hello everyone

As you know that any fluctuation in the system function is considered as noise. Does this mean that fluctuation in the results here can be considered as noise. If yes then can anyone tell me what is the way to calculate it?

Thanks
Regards

[pooja rawat]

Still Looking for replies. Any Help Please?

[Ankita Sharma]

HI Pooja,

You have very correctly mentioned that any fluctuation in the system function is considered as noise… I will suggest you to go through the link mentioned below..

http://www.svphotonics.com/pub/pub029.pdf

It will surely be of help..

regards
Ankita

[pooja rawat]

Hello Ankita
Thanks for your help but i checked the paper you have linked. There is nothing such mentioned. It has generally given the BER and Q-factor calculations pertaining to some variations. Anyways thank you 🙂

Thanks
Regards
Pooja

[Ankita Sharma]

Hi Rather,

Thanks for agreeing on my point of view..
All the best..

Regards
Ankita

[pooja rawat]

Hello Ankita.
Thank you very much for the concern.

Regards
Pooja

[Rajguru M. Mohan]

Hi Pooja,
i would suggest you to refer to following links,
ecause first we should understand various parameters of eye diagram.
http://www.edn.com/design/test-and-measurement/4389368/Eye-Diagram-Basics-Reading-and-applying-eye-diagrams
https://www.dit.ie/media/physics/documents/corish.pdf
http://opticfibrecommunication.blogspot.in/2012/11/eye-diagrams.html
http://onlinelibrary.wiley.com/doi/10.1002/0471726400.app1/pdf

hope this will help you.

[pooja rawat]

Hello Rajguru
Thank you for the help. But the links you have posted detail about various noises. I am talking about optisystem only and the result variations here. Can you provide me with a link where noise is mentioned in optisystem. I will be really thankful to you.
Thanks
Regards

[nagesh kuknoor]

Hi Pooja,

The links provided by Rajguru seem to be very helpful for your cause. try going through them. They will be surely of some help.

Thank you

[pooja rawat]

Hello Nagesh.
Thank you for the response. It indeed was helpful.

Regards
Pooja

[deepak jha]

Hi everyone on the forum,

A very nice discussion by all the forum members..

Thanks and Regards
Deepak

[pooja rawat]

Hi Deepak.
Thanks a lot

Regards
Pooja

[Atul Sharma]

Hello Pooja. Greetings.
As far as your query is concerned i feel it is a good question you have raised but i would like to tell you that nay variation in the results wont necessarily mean that it is noise. It can be because of some variation or non-linearities in the channel due to which results will vary. I hope this will be helpful but i must agree with you. An interesting query you have put forward.

With regards
Atul Sharma

[nagesh kuknoor]

Hi Atul,

You have made a very valid argument. I somehow agree to what you said. Results varying does not imply that it is noise there could be various reasons for it. Anyway thank you.

Regards

[jyoti raina]

hi pooja mam..
i agree with atul sir..he is right result variation is not due to noise only..some times random seed is the factor

with regards
jyoti

[pooja rawat]

Hi Atul.
Thank you so much for the help. I shall take note of it. I had read somewhere the variation i sdue to noise that is why i asked. Anyway thanks a lot.

Regards

[shafeen al yasin]

Hello Pooja,

I agree with Atul. System noise is not the variation of results although if you check the eye diagram analyzer you will find noise column there but it is generally a sampled noise. Hope this is useful.

Regards
Shafeen

[pooja rawat]

Hi Shafeen.
Thank you for the suggestion. I shall take note of it. Although i believe any variation may be just because of noise not always though. Anyway thank you so much.

Regards
Pooja

[shafeen al yasin]

Hi pooja,
You are welcome. Hope it has helped you.

Regards
Shafeen

[SAHIL SINGH]

Hello Pooja,

I agree with both Atul and shafeen . System noise is not the variation of results although if you check the eye diagram analyzer you will find noise column there but it is generally a sampled noise.

Regards
Sahil singh

[pooja rawat]

Hello Sahil.
Thank you for your concern. I surely will check that. It has been a helpful discussion here.

Regards
Pooja

[Ankita Sharma]

Hi Rajguru,

Thanks for providing the valuable information… Highly appreciate your efforts…

Regards
Ankita

[pooja rawat]

Hello Ankita.
Thank you for your concern. I really appreciate that.

Regards
Pooja

[Rajguru M. Mohan]

Hi Pooja,
Here is the links for different types of noise related to Optisystem

Laser Noise and Linewidth

awgn noise

Receiver Noise—PIN

Extracting the Thermal Noise Parameter for a Specific Receiver Sensitivity

In optisystem library we have Noise source, get its details through Optisystem components library pdf file.

Hope it will help you.

[shafeen al yasin]

Hi Rajguru,
Thank you for sharing such links. Really helpful..
Regards
Shafeen

[pooja rawat]

Hello Shafeen.
Yes i agree to that. The links have been very helpful indeed.

Regards
Pooja

[shafeen al yasin]

Hello pooja,
Glad to know that. All the Best.

Regards
Shafeen

[pooja rawat]

Hello Rajguru.
Thanks a lot for the links. These really must help. I appreciate your efforts.

Regards
Pooja

[nagesh kuknoor]

Hi Rajguru,

Thank you for sharing these links. The second link is very much related and it discusses different types of noises that can be associated with our system designs.

Regards

[pooja rawat]

Hello Nagesh.
Thanks for rhe concern you have shown. I appreciate it. I also want to mention that is has been really helpful.

Regards
Pooja

[Domail Singh]

Hi All,
I think this is a very valid question. A nice query put forth by pooja.
I also agree to various points of views put forward by various members.
Regards
Domail

[pooja rawat]

Hello Domail.
Thanks a lot. yes i agree to that.

Regards
Pooja

[Manoj Kumar]

Hi Rajguru,

Thanks for providing the useful information…

Regards

[pooja rawat]

Hello Manoj,
You are welcome. I hope this will continue.

Regards
Pooja

[gaurav rajput]

Hi all,

Thanks Rajguru for sharing the links and providing so much of valuable information…

Regards

[pooja rawat]

Hi Gaurav,
Thank you for your concern. I appreciate that

Regards
Pooja

[Rajguru M. Mohan]

Hi,
I agree to Domail singh.
System Noise is important point in communication field.
So, it must be discussed in brief.
system noise contribute to overall perfomance of system.

http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1257814&tag=1
http://as.wiley.com/WileyCDA/WileyTitle/productCd-0470060611.html

Regards,
Rajguru

[nagesh kuknoor]

Hello Rajguru,
Thanks for sharing the links. I hope these are beneficial to pooja and yes i too agree with domail. Anyway i hope it helps pooja.

Regards.

[pooja rawat]

Hello Nagesh,
I am really thankful for your concern. I appreciate that and yes the links have been very useful.

Regards
Pooja

[pooja rawat]

Hello Rajguru.
Thank you again for the links. But i am not able to download the ieee paper. Can you forward me the pdf?
I will be really thankful to you.

Regards
Pooja

[Ankita Sharma]

Hi Pooja,

I will download it for you as I am having the access to IEEE portal and will surely mail it to you.. send me your email i.d through personal text.. Will forward it to you

Regards
Ankita

[deepak jha]

Hi Pooja,

I suggest you to go through the links provided by Rajguru,they contain a detailed information about the system noise.. Hope it helps..

Regards

[Domail Singh]

Hello Pooja
I agree with Rajgur. try going through the links rajguru has provided. Those will surely be of some help

Regards
domail

[Rahul Tiwari]

Hi Pooja,

Go through the links provided by Rajguru.. It will surely be of help…

Regards
Rahul Tiwari

[FAYIQA NAQSHBANDI]

HELLO POOJA..

I am a bit confused with what you have stated.. As we know noise is inevitable…Any system can’t be noise free ( negligible noise is present in most ideal systems as well).. Now as far as your query is concerned , i would like to share that variation in results may not be just because of noise..There are number of other factors as well like changing launching power, pulse broadening etc.. I hope you understand.

Regards

[deepak jha]

Hi Rajguru,

Thanks for the valuable information…

Regards

[Ankita Sharma]

Hi all,

Thanks Rajguru for the information…. A very nice discussion indeed…

Regards
Ankita

[pooja rawat]

Hello Rather
Thank you for your suggestions 🙂

[Author]

Posts