This paper will focus on phase modulation communication system FPGA Implementation of the process. As a way to study the phase BPSK modulation system with VHDL language and MAX + PLUS II hardware programming tools, FPGA to achieve the above-mentioned system BPSK modulation algorithms, using MATLAB simulation tools oscilloscope output waveform.
The article first chapter, background on the issues and topics of sources of the second chapter, on the modem principle and the relevant knowledge of related software; Chapter III, on the circuit hardware design; Chapter IV, on the circuit design software .
Keywords: QPSK,CPLD,FPGA, VHDL