- This topic has 9 replies, 2 voices, and was last updated 6 years, 9 months ago by ILAKIA REXILINE.
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March 8, 2018 at 7:15 am #47966ILAKIA REXILINEParticipant
SIR
I am designing the MSK in OWC for 1000km. I can get the eye diagram and constellation diagram near the demodulator. But i cannot view the signal at end of the receiver side in oscilloscope visualizer and i cannot get the qfactor. I have attached the picture of my design. Can somebody help me to solve this problem.
Waiting for acknowledgement -
March 9, 2018 at 8:03 am #48042Mohamed A. A. AbouseifParticipant
Hi Lakia,
I can not figure out what the problem is with the OSC!!
if you can send the .osd file and I will try to help as much as I can.
In the mean time you can try to use a fork after the quadrature demodulator and use one side to the OSC and the other to the Eye visualizer (I know this solution is just to figure out is the visualizers are connected properly or not).thanks
Mohamed -
March 11, 2018 at 3:36 pm #48062ILAKIA REXILINEParticipant
Thank You for your response sir. I will try your suggestion sir.
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March 11, 2018 at 3:55 pm #48063ILAKIA REXILINEParticipant
SIR,
I have attached the .osd file for your reference sir.
waiting for acknowledgement -
March 13, 2018 at 1:49 pm #48088ILAKIA REXILINEParticipant
Hello all,
In my design of MSK the Qfactor and BER values were changing when ever i run my design. Can anyone tell me the reason for this problem.
Waiting for acknowledment -
March 13, 2018 at 2:04 pm #48089Mohamed A. A. AbouseifParticipant
Hi ILakia,
these changes might come from the Pseudo Random Bit sequence generator or noise included in the system!
As you know there is some statistics in calculations like average and standard deviation on the eye diagram.hope this helps,
thanks
Mohamed -
March 14, 2018 at 2:05 pm #48092ILAKIA REXILINEParticipant
Thank You for your response, sir. I will try your suggestion, sir.
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March 18, 2018 at 1:13 pm #48110ILAKIA REXILINEParticipant
SIR,
In my design, the Q-factor and BER were changing whenever I run the design can anyone help me to solve this problem, I cannot find the reason behind this. Here I attached my design for your reference.Waiting for Acknowledgement
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March 19, 2018 at 7:58 am #48124Mohamed A. A. AbouseifParticipant
Hi Ilakia
I can not open your file, could you please send it again to try to help in this problem!!thanks
Mohamed -
March 19, 2018 at 12:18 pm #48151ILAKIA REXILINEParticipant
Sir,
Thank you for your response sir.I have attached the design. I hope now you can open my design file.
Waiting for acknowledgement
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