[shamsudheen pParticipant]

Hi Damien,
Thank you. there is no errors now. I have modified the project for communication using white led and received the output.
However, why i can”t reduce the frequency of output? or the output which i got is noise? I have changed the bit rate in layout parameter.
Also, the data input to the user defined sequence generator is a binary converted image. I have tried to plot the same in optisystem but not succeeded. But it worked in matlab.
I am attaching the output waveform here
also the .txt file,receiver output and the matlab codes

Attachments:

1. 

   rec_img.jpg
   

2. 

   tx_img.jpg
   

1. math21.osd
2. tt.txt
3. li12.m
4. rc.m
5. txrx.m

[shamsudheen pParticipant]

Hi Damien ,
I have checked the noise bins make it true. now matrix dimension mismatch error occurs for seqmatched,
should i match the dimension of seqmatched and InputPort1.Sampled.Signal ? I have checked in workspace and not able to correct this. please help.
I have changed the frequency of white light source to 500 nm

Attachments:

1. 

   er1.png
   

1. math2.osd

[shamsudheen pParticipant]

Dear Damien, Thanks.it is working.
I just replaced the cw laser with a white light source and checked the result. but error occurs. will it be due to sampling problems??

Attachments:

1. 

   er.png
   

[shamsudheen pParticipant]

here is the matlab code,input to the user defined sequence and output obtained

Attachments:

1. 

   error1.jpg
   

1. img.txt
2. li.m

[shamsudheen pParticipant]

h

Attachments:

1. math.osd

[shamsudheen pParticipant]

Hi Damien, I have made some changes in my project file according to your suggestions. I am unable to view the output waveform. please help me to solve the issues.
Attaching the .osd file, input file to the user defined sequence generator, matlab code and output waveform

[shamsudheen pParticipant]

yes i wish to modulate the laser in accordance with the input binary sequence

[shamsudheen pParticipant]

Thank you Damian, It is working now. However the output frequency is very high.
I wanted to load .dat file for the same type of output. Any other things to taken care for this?

[shamsudheen pParticipant]

Hai sam sung,
I am able to co-simulate the matlab with optisystem. I was just trying out a simple programe code from the demo video. I want to modulate the laser according to the data which can be inputted as .dat file in the user defined sequence. The data is a binary valued(streams of 1’s and 0’s)

[shamsudheen pParticipant]

Hi Damian,
I am working on the same visible light communiation as that of sindhu kathirvel. I want to input the data (eihter image or audio) which is fed to LED for modulation purpose. I came to know about using matlab component in optisystem. could you help me to solve this problem?

[shamsudheen pParticipant]

Thanks Abhishek Shrama and Sam Sung for your valuable response. I am having the doubt that even if I am using different modulations at the transmitter side, only one type of demodulation technique is used at the receiver. So can I have the same data at the receiver without using different demodulators?
Dear Sam Sung, May I know how to compare the three modulations in one system?
it would be very helpful if you attach a screen shot of the layout.