强电磁环境信号构建等效性量化评估方法  

Quantitative evaluation for equivalence of high-intensity electromagnetic environment signal

作　　者：高原 秦风[1,2,3] 吴双 钟受洪 GAO Yuan;QIN Feng;WU Shuang;ZHONG Shouhong(Institute of Applied Electronics,China Academy of Engineering Physics,Mianyang 621900,China;Key Laboratory of Science and Technology on Complex Electromagnetic Environment,China Academy of Engineering Physics,Mianyang 621900,China;Science and Technology on High Power Microwave Laboratory,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院应用电子学研究所,四川绵阳621900 [2]中国工程物理研究院复杂电磁环境科学与技术重点实验室,四川绵阳621900 [3]高功率微波技术重点实验室,四川绵阳621900

出　　处：《中国舰船研究》2023年第4期95-102,共8页Chinese Journal of Ship Research

基　　金：中国工程物理研究院项目资助(TCGH1001)。

摘　　要：[目的]依据标准或试验规范要求等效构建强电磁试验环境信号是开展高置信度强电磁环境效应试验的前提,而如何量化评估构建环境信号与标准环境信号之间的等效性是指导试验环境信号等效构建的关键。[方法]综合基于重要点的序列分段方法,提出集成信号幅值差异度和信号相似度2个指标的强电磁环境效应试验信号构建等效性量化评估方法。结合典型强电磁脉冲环境信号构建算例,验证该评估方法的稳定性及可行性。[结果]结果表明,所提方法保留了待评估信号的局部变化特征,提高了评估结果的准确性;还综合考虑了信号距离和方向的二维相似度评价,弥补了单一评价指标可能造成的缺陷,确保了评估结果的全面性。[结论]该方法具有计算简单、实操性强、评估结果量化直观等特点,对试验环境逼真构建具有指导意义。[Objectives]The equivalent construction of test environment signals according to the standards or test specifications is the premise of conducting high confidence electromagnetic environment tests.How to quantitatively evaluate the equivalence between the constructed environment signal and the standard environ-ment signal is the key to guiding the equivalent construction of test environment signals.[Methods]A se-quence segmentation method integrating important points is proposed to quantitatively evaluate the equival-ence of strong electromagnetic environmental effect test signals by integrating two indicators:signal amp-litude difference and signal similarity.The stability and feasibility of this evaluation method are verified by a typical strong electromagnetic pulse environment signal construction example.[Results]The results indic-ate that the proposed method preserves the local variation characteristics of the signal to be evaluated and im-proves the accuracy of the evaluation results.We also comprehensively consider the two-dimensional similar-ity evaluation of signal distance and direction,which compensates for potential defects caused by a single eval-uation indicator and ensures the comprehensiveness of the evaluation results.[Conclusions]The proposed evaluation method has the characteristics of simple calculation,strong practicality and intuitive quantification of evaluation results,giving it guiding significance for the realistic construction of experimental environments.

关 键 词：强电磁脉冲环境构建 重要点分段 等效性评估 

分 类 号：U661.73[交通运输工程—船舶及航道工程]