电波科学学报2011，Vol.26Issue(6)：1102-1106,5.
基于最小相位法重建电磁脉冲时域波形
Application of minimum phase method in a pulse measurement
摘要
Abstract
Sensors such as a current probe or an antenna are usually needed in a current or electromagnetic pulse measurement,and the primary data obtained by the oscilloscope must be corrected with the transducer of the sensors to get the waveform of the original pulse.To compensate the phase information missed during the correction due to the transducer which is usually given in the form of frequency and magnitude,method of minimum phase is introduced.Hypothesis of minimum phase system is made,by which the process of signal reconstruction is discussed based on Hilbert Transform.Measurements are carried out to test the validity of the reconstruction on pulses used widely in electromagnetic compatibility（EMC）test,and calculated results showed well coherence with the direct measurements.Such a method can be used to determine the threshold level in a pulse susceptibility test,and is also useful for reconstruction of the electromagnetic pulse received by an antenna.关键词
电磁脉冲/最小相位/信号重建/希尔伯特变换Key words
electromagnetic pulse（EMP）/minimum phase/signal reconstruction/Hilbert transform分类
信息技术与安全科学引用本文复制引用
曹景阳,谢树果,苏东林..基于最小相位法重建电磁脉冲时域波形[J].电波科学学报,2011,26(6):1102-1106,5.基金项目
国家重点基础研究发展计划资助 （）
国家自然科学基金资助项目 （）
