FPGA based BPSK and DPCM

Hello everyone,

I'm doing a project on BPSK and DPCM. I have used LMS algorithm for the predictor and all the values I defined are in real. But I found that computation in real especially multiplication is taking too long. I want to convert real values to fixed point binary in the format for example 110.1011. How do I achieve this.

Also I tried to implement sinewave for BPSK using CORDIC but it wasn't very successful. So I wrote another code using Taylors series with 6 iterations in the for loop but it requires a multiplier and a divider. Is it a good idea or should I go with CORDIC or lookup table is good?

In my project I'm trying to implement BPSK as the modulator to the output of the DPCM. And I want to synthesis the verilog code on FPGA spartan 3. Is it a good idea for the project? I need little guidance and advice

Thank you in advance:???:

Instead using Cordic generate sin wave with DDS. Then during input signal change change the phase of the sine wave by reading from different location. This works. I've done this. vhdl4u gmail com