Re: If modulation index is a floating point number, how do i represent in fpga?
If numbers are known, I suggest you create a map inside the FPGA and use indexes to point at maps. In general, FPGAs aren't friendly to floating numbers, you need to avoid them at all costs. You can find floating cores in IPCore of your FPGA IDE (Xilinx, Altera and Lattice have them), but I'd rather avoid it altogether...