散射傳播 的英文怎麼說

中文拼音 [sǎnshèzhuànbō]
散射傳播 英文
beyond-the-horizon communication
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 傳 : 傳名詞1 （解釋經文的著作） commentaries on classics 2 （傳記） biography 3 （敘述歷史故事的作品）...
  • 播 : 播名詞（姓氏） a surname
  • 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
  • 傳播 : 1 （廣泛散布） disseminate; propagate; spread; （over）; diffuse; transmit; run 2 [物理學] propag...
  1. The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time. in order to improve the communication quality of the shortwave that depends on the ionosphere, we should have aknowledge of the current condition of the ionosphere in real time. the backscatter sounding of high frequency can diagnose the real - time channel characters for shortwave communication or hf radar, which is great assistant to shortwave communication and hf radar

    電離層是隨機時變，各向異性，非均勻、色散的復雜介質。為了保證依賴于電離層進行的短波通信質量，必須了解電離層的實時狀態信息。高頻返回散射探測可以實時監測與短波通信或高頻天波雷達相關的天波傳播通道的狀態，對短波通信和天波雷達工作起了重要的輔助作用。
  2. Ionosphere scatter propagation

    電離層散射傳播
  3. A two - dimensional plain strain finite element model of infinite plate is developed to investigate the ultrasonic wave propagation and scattering on three kinds of cracks : parallel to the surface, 450 oblique angle to the surface, and quarter - circle

    摘要建立了無限長板的具有吸收邊界的二維平面應變有限元模型，在研究了脈沖超聲波在無限長板中傳播的基礎上，對板中平行於表面的裂紋、與表面成45的斜裂紋和四分之一圓周弧形裂紋三種情況的脈沖超聲波散射進行了重點研究。
  4. The new software named " d - gun " for ddos is carried out, which completed in windows 2000 and rethat linux. three characteristics of d - gun are lied out. first, it can complete all steps of attack automatically ; secondly, it support a lot of method of ddos, especially support echo attack method and pulsant attack method

    本課題開發完成了一個獨立的分散式拒絕服務攻擊軟體，開發平臺是windows2000和redhatlinux ，其特色是跨平臺自動傳播，自動實現ddos攻擊的全步驟；支持多種攻擊模型，特別是構造了反射拒絕服務攻擊和脈動攻擊模型，攻擊強度高且難追溯；有一定繞過防火墻的能力。
  5. Troposphere scatter propagation

    對流層散射傳播
  6. Forward propagation by tropospheric scatter

    正向對流層散射傳播
  7. The diffraction formula and statistical law of optical fields are used to get the cross - correlation function of intensities of laser speckles of the moved diffuse object

    該方法利用光傳播的菲涅爾衍射公式和光場的統計規律，給出散斑場光強在散射體位移前後的高斯光束相關函數的表達式。
  8. In the third chapter, it was particularly analyzed the impact of the correlation between antenna arrays both sides of transmit and receive, the coexistence of line of sight ( los ) component and scatter power component in the radio propagation environments, and known and unknown channel state information on the capacity of mimo channel. the related simulation results are also given

    第三章著重分析了收發兩端的多天線單元之間存在相關性、同時存在直射分量（ los ）和散射分量的傳播環境、已知和未知通道的狀態信息等因素對mimo通道容量的影響，給出了有關模擬結果。
  9. The results show that : 1 ) the effects of interface on waves scattering are stronger in the structure with the interface perpendicular to the direction of fracture normal than that in the structure with the interface parallel to the direction of fracture normal. 2 ) when the interface is perpendicular to the direction of fracture normal, the amplitude of reflected waves and converted s - waves are higher and there are the sub - p - and sub - s - wave. 3 ) when the elastic waves propagating in the multi - stripe model, wavesforms become complex due to multiple scattering on interfaces

    研究結果表明： 1 ）界面與裂縫排列方向平行時，界面對波的散射作用大於界面與裂縫排列方向垂直時的情況； 2 ）當界面與裂縫排列方向平行時，在界面上產生的反射波及轉換的橫波幅度較大，並且有次級縱波和橫波產生； 3 ）彈性波在多條紋結構中傳播時，在界面上產生多次散射使得波形十分復雜。
  10. Forward propagation by ionospheric scatter

    正向電離層散射傳播
  11. Precipitation scatter propagation

    降落物散射傳播
  12. The rain area is regarded as a random background medium, and the scattering field and backscattering matrix of the cylinder target in rain are gained. in the coherent case, the power of cylinder target in rain and air and their optimum polarization states are studied by the three - step method

    在研究雨中目標時，本文把雨區看成隨機的背景介質，利用波傳播理論、目標的邊界條件，得出介質圓柱在雨中的散射場、後向散射矩陣，並進行了相關計算。
  13. We have calculated and plotted the curves of the refractive index, group velocity index, lowest - order and second - order dispersion indexes as a function of wavelength. the lowest - order and higher - order dispersion - induced broadening and deforming of light pulses is analyzed for various pulse shapes, such as gaussian, super - gaussian and hyperbolic secant pulses

    給出了折射率、群速指數、低階和二階色散系數隨波長變化的關系曲線，研究了高斯脈沖、超高斯脈沖和雙曲正割脈沖等超短脈沖在clbo晶體中傳播時，由於低階色散和高階色散引起的脈沖展寬和形變。
  14. Based on the backward propagation concept, we evaluated the feasibility of reconstructing the image of elastic wave sources and scatterers

    依據逆時傳播的觀念以評估重建彈性波源及散射體影像的可行性。
  15. Scattering of the cloud or raindrop for radar wave was always the principal causes of meteorological interference. the author, according to specific property of the spherical or unspherical points, analysed some decline phenomena in propagation for radar - wave, especially the typhoon rainstorm

    雲雨滴對雷達波的散射是產生氣象干擾的主要原因.根據球形、非球形質點的散射特性，分析了雷達波在傳播過程中受其影響所產生的各種衰落現象，特別是臺風暴雨
  16. These experimental results show that < q12 > is independent of the dimuon mass and logitudinal momentum, and imply the scattering of the incident quark within the target nucleus. by means of the glauber model, the difference of the mean transverse momentum squared < qt2 > is studied for the dependence of the incident proton energy and nucleus. the theoretical results are in good agreement with the fnal e772 experimental data

    本文利用多重散射的glauber模型，討論了入射夸克在原子核中傳播的多重散射效應，給出了兩個不同的核drell - yan過程產生的末態輕子對橫動量平方平均值的差值對入射粒子能量核靶核的依賴性關系，計算結果與e772組的實驗數據符合甚好。
  17. It has been proven that, from the propagation process of the tidal waves and wave energy rates, the whole radial sandbanks area is controlled by the progressive tidal wave in the south and the rotational standing tidal wave in the north. these two waves merge at qianggang and induce a large tidal range

    通過對潮波波面傳播過程及潮波能流率研究表明，輻射沙脊群海域為南部太平洋前進潮波和北部旋轉潮波所控制，兩潮波系統在?港外海輻聚輻散，形成大潮差區的特點。
  18. The land clutter is useless signals for target detection caused by land terrain. the multipath effect is some kind of interference which is caused by wave reflection on terrain. the diffraction effect is the phenomenon of wave propagation into shadow region

    地雜波是由地面散射引起的對目標探測無用的信號;多路徑是由電磁波在地面反射所引起的干涉;衍射則是電波繞射傳播到遮蔽區的現象。
  19. The millimeter has the largest frequency band and the highest velocity of communication, but it has the highest cost and technical defaults : multi - path effect, reflect and scatter caused by cloud, smoke, water - dropping, the buildings, the grounds and its shape, the interference caus ed by the thunder, the complexity of device, difficult maintenance, and so on. now the band of the leakage coaxial line is up to 3ghz, leakage coaxial line has some advantages : good adaptability to cloud, smoke, water - dropping, the buildings, the grounds and its shapes, good steady field, it has some technical defaults : lower resolution for location and measuring velocity, the more complex of its sending - receiving relay devices, weak anti - interference, the strict demand for the hole size in the line, the cleaner work environment and the higher cost

    毫米波具有最大的帶寬和最高的通信速率，但也有最高的成本要求和較難克服的技術問題，即傳播的多徑效應，降水、雲霧、地形、地貌、建築物等的反射散射，打雷時的嚴重干擾，設備復雜，維護困難等等；泄漏同軸電纜的帶寬目前已做到3ghz ，具有對地形地貌建築物的適應性強，場強穩定，但它的定位測速精度低，它的收發中繼設備較復雜，抗干擾能力低，電纜上的開槽有著嚴格的尺寸要求，工作環境要求清潔，成本較高；傳統無線感應技術具有結構簡單，成本低廉，維護方便，定位精度較高的優點，但是，它沒有抗干擾能力。
  20. That is, modeling radar system with software, and then recurring the produce, transmission processing by computer. the core of res is modeling the scatter and transmission of radar echo signal and varied radar clutter signals

    雷達模擬的核心是建立雷達目標回波信號及各種雜波信號散射、傳播特性的模型。雜波伴隨這雷達產生而產生，對于雷達的設計有著重要的影響。
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