关键词: FSK/PSK, DDS, m伪随机序列, FPGA

Abstract:

The paper presents a method which uses large-scale programmable gate array FPGA to implement FSK and PSK digital modulation based on DDS and VHDL hardware description technology.It describes the m pseudo-random baseband symbol generator,transition detector and DDS signal modules in detail.The parameter of the system is easy to modify and transplant,and the system performance is stable.

Key words: FSK/PSK;DDS;m pseudo-random baseband-symbol;FPGA