Research On Shortwave Communication Confrontation Practice Teaching System

Under the background of the complicated communication principle and the rapid development of communication technology,it is very difficult for students majoring in communication engineering to master the communication professional knowledge and to use the communication professional skills correctly and proficiently in a short period of time.With the application of modern computer technology,most of the problems encountered in teaching practice,such as abstract concepts,difficult problems,and complex practical applications,are mostly enhanced by multimedia courseware and animation demonstrations.But there is still a certain distance between actual needs.In order to solve the above-mentioned problems,this paper studies and designs a shortwave communication confrontation practice simulation teaching system for communication engineering majors.First,the basic concepts of shortwave communication and shortwave communication confrontation are reviewed.The basic principles of shortwave communication interference are explained,and the main styles and implementation methods of shortwave communication confrontation studied in this paper are defined.Secondly,this paper proposes a normalized interference effect evaluation method,and demonstrates the evaluation method.The demonstration results show that the evaluation method can truly and effectively reflect and evaluate the interference effect,and also provides a methodology and reference standard for subsequent simulation and analysis.Then,this paper simulate and analyze the interference effects of different types of interference source signal patterns on shortwave communication systems;choose Gauss white noise as the normalized interference source signal pattern,simulate and analyze the interference signals of different types of modulation methods on shortwave communication system interference effect.Finally,this paper simulates and analyzes the interference simulation of shortwave analog communication system and shortwave digital communication system respectively.First,the overall design is explained,and then the design and introduction are made from the hardware composition and software implementation of the system.Thirdly,this paper puts forward the idea of using Visual C ++ and MATLAB to carry out the simulation and design the shortwave communication confrontation practice teaching system.It is expounded from the overall design,and then introduced from the two aspects of the system's hardware composition and software implementation.Finally,the shortcomings of the shortwave communication confrontation practice simulation teaching system and the follow-up research directions were clarified.Through the practical teaching of the short-wave communication confrontation simulation system,students can be immersed,further mobilize the students' learning interest and enthusiasm,and enhance their understanding and application of communication engineering knowledge.At the same time,teachers can better understand,master,test and evaluate the learning situation of students,and provide more targeted guidance and help to students' learning,effectively improving teaching and learning efficiency.