A Waveform Stealth Communication Transmitter Teaching Experimental System Design And Implementation

Stealth communication technology is one of the important means to ensure the safety of communications.Colleges and universities in the training of communications professional defense students in the curriculum design of stealth communication technology due to the lack of experimental conditions or other reasons,resulting in students can only understand the basic communication through textbooks In principle and communication process,it is difficult to understand the meaning of "role" and "role"played by a series of stealth communication technologies such as encoding,spreading,modulation and frequency hopping in the practical application process.In view of this situation,this paper proposes to design a set of wave-shaped stealth communication transmitter teaching experiment system that combines easy operation,visualization,hardware and software platforms.Through experiments,students can intuitively observe the effects of different communication stealth technologies on signals,deepen their understanding of communication stealth technologies,and enhance their practical ability.Based on the above ideas,this paper analyzes the basic requirements for the construction of college communication teaching labs,and absorbs the advantages of experimental teaching systems such as "Communication Principles",and designs and implements an FPGA-based waveform stealth communication transmitter experimental teaching system.Firstly,the status quo of the experimental teaching environment of the national defense education in the communication specialty of colleges and universities and the development of the tactical data chain of the US military are reviewed in the literature,and the necessity of the experimental teaching of stealth communication is analyzed.Secondly,the basic principle and key technology of stealth communication technology are researched,and the performance characterization parameters of stealth communication system are given.Then,based on the design requirements of the experimental teaching system,a hardware platform based on the FPGA-based waveform invisible communication transmitter teaching experiment system and a host computer software platform based on Windows7 x64 system are designed.Subsequently,the design and implementation process of the upper computer software platform is discussed in detail.At the same time,the PCI-e channel design and implementation process of the upper computer software and hardware communication are given.Finally,the function of each module of the PC software platform is tested and verified.The testing flow of the whole system is proposed and the accuracy of the entire stealth communication teachingexperiment system is verified against the testing process.Experimental results show that the designed FPGA-based waveform stealth communication transmitter experimental system achieves the expected design goals and can meet the requirements of relevant teaching experiments.