电子科技2025，Vol.38Issue(6)：74-81,8.DOI:10.16180/j.cnki.issn1007-7820.2025.06.011
基于FPGA的MPSK信号实时解调系统设计
Design of MPSK Signal Real-Time Demodulation System Based on FPGA
摘要
Abstract
In view of the five kinds of phase shift keying signals,namely BPSK(Binary Phase Shift Keying),QPSK(Quadrature Phase Shift Keying),PI/4-QPSK(PI/4-Quadrature Phase Shift Keying),OQPSK(Offset Quad-rature Phase Shift Keying)and 8PSK(8 Phase Shift Keying),a design algorithm of real-time online demodulation system with configurable parameters based on FPGA(Field Programmable Gate Array)is proposed.The intermediate frequency signals with different configuration parameters and modulation type can be processed using the same pre-processing structure,then they can be demodulated separately based on the different characteristics of the signals to obtain the constellation data and demodulated symbols.The fixed-point simulation of each module in the algorithm is completed on the MATLAB platform.The FPGA algorithm is developed on the Vivado platform using Verilog lan-guage,and the simulation verification is carried out for each module and the total project with Modelsim software.Five modulation types of signals are generated using Rohde & Schwarz SMBV100B signal generator,and the signals are collected using the ADRV9009 and the AMD 7 Series xc7vx690tffg1157-2 chip for on-board testing.The test re-sults show that the demodulation system can complete the demodulation function of five kinds of MPSK(Multiple Phase Shift Keying)signals.Compared with traditional design structure,the proposed algorithm structure saves hard-ware resources.关键词
多进制相移键控/中频信号/实时解调/动态配置/Verilog/FPGA/MATLAB定点化/Modelsim仿真Key words
multiple phase shift keying/intermediate frequency signals/real-time demodulation/dynamic con-figuration/Verilog/FPGA/MATLAB fixed-point/Modelsim simulation分类
信息技术与安全科学引用本文复制引用
张诏儒,刘生,刘世刚..基于FPGA的MPSK信号实时解调系统设计[J].电子科技,2025,38(6):74-81,8.基金项目
国家自然科学基金(61874072) （61874072）
河南省教育厅重点项目(18A510022)National Natural Science Foundation of China(61874072) （18A510022）
Key Project of Henan Education Department(18A510022) （18A510022）
