Analysis And Application Of Long Wave Electromagnetic Radiation System

Long-wave electromagnetic radiation technology is widely used in underwater communications,metal detection and other fields.The long-range high-rate underwater reliable communication is still one of the core objectives of the research,and has important significance for the national economy and military applications;in the metal detection field,low-power,high-sensitivity,high-identity metal detectors have become more and more big market demand.Therefore,in order to meet the needs of practical projects,the optimization of the detection coil at the core component of the metal detection security system includes improvement of the coil size structure and system working status to improve the detection effect of the system,and complete the design tasks of the transceiver front-end for the long-wave communication system.Based on the experiments of metal detection and optimization coils,the long-wave communication system's transceiver antenna was designed.Firstly,the research background of the long-wave electromagnetic radiation system and the development status at home and abroad,including some cutting-edge technologies in the military and civilian fields,are introduced.Then introduced the basic theory of long-wave electromagnetic radiation system,including the basic composition of the system and the application of scene analysis,including underwater communication,metal detection,wireless charging and radio frequency identification and other fields,and theoretical analysis of the relevant knowledge involved in the system.The core modules of the system are briefly introduced.On this basis,two application scenarios are analyzed and designed in depth,including:1.The design of metal detection security door system,analysis of the main factors affecting the detection performance of the system,through the theoretical analysis and experimental testing to determine the factors that have the greatest impact on performance and optimize the design of these related modules,including over the coil construction model The finite element analysis determines the mechanism that is suitable for system use,and improves the design of the structure size,working frequency,circuit design and other aspects through the experimental test system's work performance.After the improvement,the sensitivity and accuracy of the detection have been further improved.2.Underwater long wave communication system design and simulation,complete long-wave communication front-end transceiver system design.Complete the design of the transmitter front-end circuit including filtering,power amplifier circuit design and the design of the radiating antenna,filtering and amplifying circuit design of the receiving antenna signal,and realizing the communication task of the long wave wireless platform through physical debugging.3.For the core part of the long-wave electromagnetic radiation system,the performance optimization of the radiating coil is summarized.Through theoretical investigation and experimental data and experimental laws,relevant factors affecting the performance of the radiating coil are summarized,and these factors are classified and discussed to obtain the best radiating coil performance factors,which will provide some guidance for coil optimization later.