The Propagation of Electromagnetic Waves in Tube by Plane Wave Spectrum 平面波谱法分析电磁波在管道中的传播
The microwave back-scattering characteristics are numerically analysed by the electromagnetic scattering theory, and the sea wave height spectrum that reflects the wind field is rebuilt by comparing the calculated data with some experimental data which are measured by airborne scatter. 本文利用电磁散射理论进行海面微波后向散射特性的数值分析,并与机载散射计所获得的实验数据匹配重建反映风场的海面波高谱。
We found that the converted electromagnetic wave has symmetrical two dominant frequency crests in the spectrum. 在频谱分析中发现,转换电磁波在频率谱上存在对称的双主频峰。
Analysis of the Electromagnetic Properties of the Radome by Plane Wave Spectrum Method Based on the Gauss Integration 基于高斯积分的平面波谱法分析天线罩电性能
The spectrum response of electromagnetic wave from cavity is of high sensitivity, so spectrum section obtained by using the method of log-power spectrum and gauss window function improves the identifying diseases capability. 空洞病害对电磁波的频谱响应具有较高灵敏度,利用对数功率谱算法和高斯窗口函数来计算时间窗口的对数功率谱剖面,提高了对空洞这类隐伏病害的识别能力。
And several commonly used parameters which represent the electromagnetic wave propagation process are introduced, such as power delay profile, time dispersion parameters, coherence bandwidth and fading Doppler spectrum. 并就一些常用的表征电磁波传播过程的参数进行了介绍,如功率延迟分布图、时间色散参数、相干带宽和衰落多普勒频谱。
Terahertz radiation is the last region of electromagnetic wave spectrum. 太赫兹辐射(THz)是电磁波谱上最后开发的一个波段。
Because of the special situation of the THz radiation in electromagnetic wave spectrum and its outstanding performances, the relative research on the THz radiation generation and application has become a hot spot. 基于THz辐射在电磁波谱中的特殊位置以及其有别于其它电磁辐射的特殊性质,关于THz辐射产生和应用的研究越来越为人们所关注。
Near infrared spectrum ( NIRS) is a kind of electromagnetic wave between visible spectrum and middle infrared spectrum. 近红外光谱(NIRS)是介于可见光谱区和中红外光谱区之间的电磁波。
The submillimeter wave plays a very important role between the infrared and millimeter wave in electromagnetic wave frequency spectrum. Therefore, it has important academic value. 亚毫米波在电磁波频谱中处于红外线与毫米波之间非常重要的位置,因此在学术上有很重要的研究价值。