電磁波譜段 的英文怎麼說

中文拼音 [diàncíbōpǔduàn]
電磁波譜段 英文
electromagnetic spectral band
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 譜 : Ⅰ名詞[書面語]1 （按類別或系統編成的書或冊子等） table; chart; register 2 （指導練習的格式或圖形）...
  • 段 : Ⅰ量詞（部分） section; segment; part; paragraph; passage Ⅱ名詞（姓氏） a surname
  • 電磁波 : electromagnetic wave; ether hertzian wave; hertz wave電磁波測距 electromagnetic distance measurem...
  • 電磁 : [電學] [物理學] electromagnetism電磁安（培） abampere （電磁系電流單位）; 電磁泵 electromagnetic ...
  1. Deliberate radiation or reradiation of electromagnetic waves so as to impair the usefulness of a specific segment of the radio spectrum that is being used by the enemy for communication or radar

    人為地輻射或反向輻射電磁波，使一段特定的無線電波譜的可用性削弱，而這一波譜段是由敵人的通訊或雷達所使用。
  2. Of or relating to the range of invisible radiation wavelengths from about4nanometers, on the border of the x - ray region, to about380nanometers, just beyond the violet in the visible spectrum

    人為地輻射或反向輻射電磁波，使一段特定的無線電波譜的可用性削弱，而這一波譜段是由敵人的通訊或雷達所使用。
  3. Aiming at the scheme of the signal electromagnetic environment simulator of the wireless communication system, the mission of this project is to design and realize the conversion of high speed parallel signal to serial signal and conversion of high speed digital signal to analog signal. the signal comes from the v / uhf wave band of the background simulator

    本課題的任務是針對通信信號電磁環境模擬器系統的方案要求，設計實現背景信號模擬器v uhf波段後端高速信號的復接與d a轉換，為后級的頻率綜合器的信號頻譜搬移提供了基本信號。
  4. Electromagnetic compatibility and radio spectrum matters. electromagnetic compatibility for radiotelephone transmitters and receivers for the maritime mobile service operating in the vhf bands

    電磁兼容性和無線電頻譜. vhf波段工作的海上移動設備用無線電話發射機和接收機的電磁兼容性
  5. In this paper, first, the study of the distribution of electromagnetic field, energy, power, reflection coefficient and transmission coefficient in waveguide with piecewise different dielectric constants are studied. then, the behavior of propagation of am signal and gauss pulse signal through the waveguide are simulated by magic code ， and the plots of electromagnetic field, energy, ponyting vector and their spectrums at different time and different position are obtained. and, the group velocity and energy velocity of wave packet through barrier are calculated

    從90年代開始， emig和martin 、 landauer等人研究了分段填充不同介質的波導中的電磁脈沖的傳播。在本論文中，作者首先推導出分段填充不同介質的波導中的電磁場分佈、能量、傳輸功率以及反射系數和傳輸系數的表達式，然後，採用magic程序模擬了這種波導結構中電磁波的傳播情況，得到了在不同時刻和不同位置處的電磁場分布圖、能量圖、坡印廷矢量圖以及它們的頻譜圖，並由模擬結果計算了波包穿越勢壘的群速和能量速度。
  6. A coherent electromagnetic pulse in the range between the far - infrared and microwave region is used as a detection source. the amplitude of the wave is recorded by electro - optical or photoconductive sampling. after fast fourier transform, the amplitude and phase of the wave is given, then the complex refractive index standing for the absorption and dispersion of the material in thz region is extracted

    Thz （ 10 ~ （ 12 ） hz ）時域光譜技術是20世紀90年代發展起來的一種新型的光譜測量技術，它使用頻率介於遠紅外和微波之間的相干電磁輻射脈沖作為探測源，利用電光取樣或光電導取樣的方法直接記錄thz輻射電場的振幅時間波形，通過傅立葉變換得到測量信號振幅和相位的光譜分佈，進而獲得材料在thz波段的復介電常數，即色散及吸收等信息。
  7. The main use of this element is to divide the em field in ir band and mmw band

    它最直接的作用是在反射紅外光譜波段的同時透射毫米波輻射，從而把兩種波長相差很大的電磁場信號分開。
  8. Secondly, basing on the theory of on - off gain of small signal, the raman gain coefficient for frequency shift between 0. 5 and 20 thz of standard sigle mode optical fiber is measured by pump - probe method through a super luminescent diode ( sld ) as a broadband small signal probe source. thirdly, numerical simulation analysis of gain characteristic of raman fiber amplifier for c band wdm signal light is made according to the raman gain coefficient of the fiber measured before through target and four rank runge - kutta method. at the invariability of wavelength and maximum power of each of two pumps, schematic of powers of two pumps for best flatness on c band wdm optical gain was found out, at the same time, the factors of resulting in gain saturation is analyzed, too

    本文首先應用經典的電磁理論對拉曼光纖放大器的工作機制進行了分析，然後，根據小信號理論推導出的開關增益求出了光纖拉曼增益系數的表達式，採用泵浦-探測波的方法，利用超輻射激光二極體（ superluminescentdiode簡稱sld ）作為探測光源，測量了所用標準單模光纖頻移為0 . 5 - 20thz的拉曼增益系數，之後根據所測得的光纖的拉曼增益系數譜對應用該類光纖構成的放大c波段wdm光信號的拉曼光纖放大器的增益特性採用打靶法和四階龍格- - -庫塔進行了數值計算，在給定了兩個泵浦光源的波長和最大功率后，找出了反向泵浦情況下使c波段wdm光源增益最平坦的兩個泵浦的各自最佳功率，同時也分析了導致信號光飽和的原因。
  9. In this paper, first, 1 made a study of the distribution of electromagnetic field, energy, power, reflection coefficient and transmission coefficient in waveguide with piecewise different dielectric constants. then, i simulated the behavior of propagation of am signal and gauss pulse signal through the waveguide by magic code, and gave the plots of electromagnetic field, energy, ponyting vector and their spectrums at different time and different position

    在本論文中，作者首先推導出分段填充不同介質的波導中的電磁場分佈、能量、傳輸功率以及反射系數和傳輸系數的表達式。然後，採用magic程序模擬了這種結構的波導中的電磁場的傳播情況，得到了在不同時刻和不同位置處的電磁場分布圖、能量圖、坡印廷矢量圖以及它們的頻譜圖。
  10. Electromagnetic compatibility and radio spectrum matters - maritime mobile transmitters and receivers for use in mf and hf bands - part 1 : technical chatacteristics and methods of measurements

    電磁兼容和射頻頻譜管理. mf和hf波段用海上移動發射機和接收機.技術特性和測量方法
  11. As an wave - band in the electromagnetic spectrum which hardly being used to this day, terahertz has came to be a focus to scientists of all over the would

    Thz作為電磁波譜中至今仍然未被人們開發利用的波段，已經被眾多的科學工作者所關注。
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