摘要
舰船短波电磁环境仿真建模是面向舰船短波大功率天线优化布局、电磁环境精确计算与数字表征、电磁环境计算机模拟的关键技术,要保证舰船电磁环境分布的仿真结果贴近工程实际,必须对舰船电磁环境仿真模型进行精确构建和算法适应性处理。本文针对舰船短波电磁环境分布特征,分析了影响舰船电磁环境仿真准确性的主要因素,结合计算机图形学、计算电磁学和电磁波理论对舰船电磁环境仿真建模的工程应用技术开展了研究,提出了适用于电大尺寸复杂平台电磁环境仿真的优化建模方法。结果表明,该建模方法能满足工程应用需求,与试验数据对比的平均误差小于3dB。
Simulation and modeling is key technologies for high-power HF antennas arrangement optimization,precise computing and numeral presentation,computer modeling reappearance of shipboard HF EM environment. To ensure the simulation results approaching engineering practice,must to exactly construct the simulation model and process the algorithm adapting treatment. According to distribution characteristic of shipboard HF EME,in this paper,combined computer graphics,CEM and EM wave theory,analyzed main factors influencing the accuracy of simulation,developed researches of engineering application techniques for EM environment simulation and modeling,presented optimized modeling method applicable for large electrical-size and complex platform. The results show that the modeling method satisfies the engineering requirement,and the average error is less than 3 dB compared to test data.
出处
《舰船科学技术》
2010年第3期129-132,共4页
Ship Science and Technology
关键词
舰船
短波电磁环境
仿真建模
工程应用
ship
high-frequency electromagnetic environment
simulation modeling
engineering application
