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有效的第四阶PSTD算法与移动窗口的长距离EMP传播

Yongli Wei¹, Baofeng Cao¹, Zongxiang Li¹

¹State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.

Sensors (Basel, Switzerland)

|October 16, 2024

概括

一个新的移动窗口第四阶伪光谱时间域 (MWPSTD-4) 算法通过提高通过电离层的长距离传播的精度和效率来增强电磁脉冲 (EMP) 检测.

科学领域:

电磁学电磁学电磁学电磁学
计算物理计算物理
太空科学太空科学

背景情况:

卫星传输的电磁脉冲 (EMP) 检测对于军事,太空监测和灾害预警至关重要.
电离层显著扭曲EMP波形,挑战检测准确性.
现有的二次伪光谱时域 (PSTD-2) 算法在长传播距离上难以保持稳定性和准确性.

研究的目的:

开发一种更准确,更稳定的数值方法来模拟电离层中远距离EMP传播.
解决传统PSTD算法在处理复杂的电磁场模拟中的局限性.
为了提高卫星式EMP检测系统的可靠性.

主要方法:

引入第四阶伪光谱时间域 (PSTD-4) 算法.
纳入移动窗口技术来创建MWPSTD-4算法.
对MWPSTD-4与PSTD-4和PSTD-2进行长距离EMP传播的比较数值分析.

主要成果:

MWPSTD-4算法在保持高精度的同时显示出更高的效率.
在远距离EMP传播模拟中,MWPSTD-4有效地减轻了数值分散干扰.
拟议的方法适用于大规模的电磁场模拟.

结论:

MWPSTD-4提供了一个强大的解决方案,用于模拟像电离层这样的复杂环境中的EMP传播.
这个算法提供了一个基本的工具来克服在EMP计算中的数值分散挑战.
这些发现支持先进的卫星电磁波探测器的设计和校准.

关键词:

电磁脉冲是一种电磁脉冲.第四阶段的PSTD 长距离传播的传播方式移动窗户移动窗户移动窗户数字模拟的数字模拟.

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