Problem with synchronizing signal with the carrier recovery in QAM demodulation

[thieuhiep]

Hi,

I've just studied FPGA for a short time. At that time, I've built successfully a QAM-16 modulation project using VHDL code. But now, when I try to build QAM demodulation, I've met a big problem. I've done the demodulation in matlab, but in FPGA, I can not synchrolize the receive signal with the carrier recovery. I mean I can't recover symbol clock from receive signal. That's why the demodulation didn't work.

Please tell me if you have any advice, code or material about my problem.

Thanks in advance!

 

[genistech]

demodulation of qam signals using vhdl

Do the carrier and clock synchronization before demodulating 16 QAM signal.

 

[kassytan]

qam demodulation:

Can i have ur QAM verilog code? i am doing the final year project with it. thanks for ur sharing.

my email: kassy2kassytan@yahoo.com

 

[hemalatha.b.k]

Hi, can you please share ur verilog qam code . i'm doing final year proj on 16qam for SDR.
Thanks for sharing.
My mail id: hemalatha.b.k.87@gmail.com

Hi,

I've just studied FPGA for a short time. At that time, I've built successfully a QAM-16 modulation project using VHDL code. But now, when I try to build QAM demodulation, I've met a big problem. I've done the demodulation in matlab, but in FPGA, I can not synchrolize the receive signal with the carrie
Please tell me if you have any advice, code or material about my problem.

Thanks in advance!