Shortwave Digital Radio Training Simulator And Realization

The simulation training system is one of the technology that the armed forces of various countries develop. The short-wave digital radio simulation training system that this paper developed is a project aimed at developing a set of advanced performance, stability and easy-to-use digital radio simulation training system to replace the current use of force training equipment, to solve the bottlenecks of training equipment.First, the dissertation introduce the basic theory of short-wave digital radio and the principle of adaptive communication and frequency hopping communication.Analyzing two kinds of communication mode of technical indicators and workflow. Secondly the digital radio training simulator of the two training structure: LAN training, WAN training based on understanding the training simulator in the development of the situation and key technologies, Detailed analysis of the two training methods work pattern and its key technologies. The simulation training system ues open system architecture, system simulation through the equipment can be the complet the simulation of electromagnetic environment. The system design is an open architecture design, technology and equipment for the entire category of simulation training system development, all of which have some reference value.Then studied emphatically that the short-wave digital radio simulation training system software design based on LabVIEW. After analyzing the function of the simulation training system, the paper divided the design of the software system into three modules, monitor terminal of the software design, the network interface design of the software and PC terminals software design. According to the function, the PC terminals software design can be divided into the Common communication mode, frequency hopping communication mode and Adaptive communication mode. The paper gives a detailed function of each module, software design process and some important methods realize the function .Later on studied emphatically that the electromagnetic environment simulation based on Simulink. First study the design method of Simulink LabVIEW's interface . Using the RTW toolkit generated DLL simulation model and through the DLL interface that LabVIEW provided complete interactive simulation. Secondly, the paper detailed study of frequency hopping communication and adaptive communications of the electromagnetic environment simulation. Give the principle of Simulation model, each module of the detailed design, model validationat at frequency hopping communication electromagnetic environment in the simulation, Analyzed the influence of frequency hopping synchronization and communication under different ratio of signal to interference, jamming interference, some frequency band jamming interference, forwarding interference and single-rate interference. Paper give the principle of Simulation model, each module of the detailed design, model validationat at adaptive communication electromagnetic environment in the simulation too and analyses the interference for adaptive communication strategy.Finally, some problems of the system are discussed, and introduced briefly the subsequent development.