can bpsk modulation be implemented in fpga in verilog only?

[deschamp123]

bpsk using fpga

I would like to ask if bpsk modulation can be implemented in fpga using only verilog code? (without using matlab, or dsp builder)
I don't have a dsp builder license. My fpga device is an Altera DE2 board, is this device suitable for BPSK modulation implementation?

Thank you

 

[alainsan]

Re: bpsk using fpga

The baseband part (zero center frequency or low intermediate frequency) of a BPSK modulator and demodulator can be implemented in FPGA. Here are examples:
https://comblock.com/download/com1402soft.pdf
https://comblock.com/download/com1001soft.pdf
There are simplified block diagrams in the above documents.

 

[mersault]

yes, it's possible.. I implemented a BPSK modulator in a spartan 3E fpga, only with verilog and schematics designs (that could be translated to verilog)

 

[deschamp123]

Re: can bpsk modulation be implemented in fpga in verilog on

alainsan, thanx for the info~
mersault, oh u did it! may i know how did u do it? Did you use the sine wave generator (NCO) or lookup table? Can you roughly tell me the structure of your modulator?

Thank you

 

[mersault]

well, my modulator uses a unit to capture the sequence to modulate from a keyboard, then I used, to generate the signal, a ROM with enough samples to generate the correct signal with a DAC, then I used a SPI controller to use the DAC.

 

[tervillord]

what about qpsk?can it be done only by codes and cores?