Community Forums - Bindu

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Free Evaluation

Forum Replies Created

May 13, 2014 at 12:18 pm #11483

Participant

Hi Damian Marek,

Thank you for the quick response. Info was helpful.

Yes i want to know both of them “plotting the BER vs Eye height and how it relies on the decision instant and plotting the BER vs Eye height for systems with different noise levels or laser powers”

To make it more clear. Am doing my project on “Design & simulation of QPSK modulator for optic inter satellite communication”
So now that i have QPSK design, I want to compare with other systems (BPSK,DUO binary,etc) and to show that QPSK is superior compared to others.
So i need some graphs with respect to parameters like BER,Q factor, wavelength,eye height, power etc.

Sorry for the trouble. Please assist me on the following.

With regards,
Bindu

May 13, 2014 at 9:04 am #11464

Participant

Hi Damian Marek,

I appreciate your great help.
Can you also please help me out in more doubts in Optisystem.

1) Theoretically for LEO/GEO satellites has min BER of 10^-9 to 10^-12.
but when am trying out designs like QPSK,BPSK,Duo-binary systems in eye diagram analysis, Min BER shows ‘0’.
how can i vary it or change it.

2) In optisystem in ‘report’ where we can view graphs. Is there any possibility to compare to parameters like BER vs Eye height etc..
How can i acheieve that.

Please go through and help me out.
As am running out of time for my project submission. am looking for more information on Optisystem.

Please assist me on the priority.

Thank you for the help.

Bindu

April 18, 2014 at 10:08 pm #10739

Participant

Hi,

Am looking for a detail working of it.

April 15, 2014 at 7:30 am #10311

Participant

Hi,

i am working on optical communication project,Design of qpsk modulator using optisystem.please find the attachment below. can u please explain and give the detail working of it.its very much necessary.

thanks for ur help.

Bindu

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