Beijing Jinkun Technology Co., Ltd www.jonkon.com.cn

Abstract: Modern communication systems require long communication distances, large communication capacities, and good transmission quality. As one of its key technologiesModulation and demodulationTechnology has always been an important direction of research for people. Discussion and simulation implementation based onFPGADigitalization ofDPSKModulation and demodulationSystem. useAlteracompanyFPGAdevelopment platformQuartus II 3.0Implemented a baseband signalDPSKModulation and demodulationSimulation of system models.

Modern communication systems require long communication distances, large communication capacity, and good transmission quality. As one of its key technologiesModulation and demodulation technologyIt has always been an important direction of research for people. The communication quality of a system,It largely depends on the modulation method used. Therefore,Research on Modulation Methods,It will directly determine the quality of the communication system[1, 2]With the development of ultra large scale integrated circuits,Especially with the rapid development and widespread application of microelectronics and computer technology,Digitization has become the current trend in the development of communication technology,It has the advantages of high reliability, strong flexibility, and easy large-scale integration,Increasingly valued. currently,The main means of digitization are integrated circuits（ASIC）And Universal Digital Signal Processor（DSP）Field Programmable Gate Arrays（ FPGA）Provided a third solution for implementing digital signal processing,It combines the advantages of both methods mentioned above,It has the advantages of short development cycle, convenient design scheme modification, low cost, and no risk issues in investment[3]This design has selectedAlteracompanyAPEX20KEseriesFPGAChips are used to implement the design.