雷達波反射 的英文怎麼說

中文拼音 [léidábōfǎnshè]
雷達波反射 英文
reflection of radar waves
  • 雷 : 1. （雲層放電時發出的響聲） thunder 2. （軍事上用的爆炸武器） mine 3. （姓氏） a surname
  • 達 : Ⅰ動詞1 （暢通） extend 2 （達到） reach; attain; amount to 3 （通曉; 明白） understand thoroughly...
  • 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...
  • 反 : Ⅰ名詞1 （方向相背） reverse side 2 （造反） rebellion 3 （指反革命、反動派） counterrevolutionari...
  • 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） ...
  • 雷達 : [訊] radar （縮自 radio detection and ranging）
  1. However, the radio wave can then reflect back of the earth and become refracted again to return earthwards once more. this can sometimes occur a number of times with little attenuation but some fading

    在雷達探測中可以利用此方法，初步確定雷達回波中哪個地區會出現陷獲折射回波，為進一步分析從雷達回波反演大氣層結提供了可能。
  2. Through measuring the value of infrared radiation when the complex decoy is burning, it is concluded that the complex decoy ' s energy of infrared radiation is much more than the substrate ' s. through researching the performance of microwave radar ' s transmission and refection within the band of 3mm and 8mm, it is proved that the interference with radar is feasible

    在復合誘餌劑的性能測試方面：對制備出的復合誘餌劑燃燒時的紅外輻射展開研究，發現了復合誘餌劑的紅外輻射能量比基片的紅外輻射能量有很大的增加；開展了對3mm 、 8mm波段毫米波雷達的透射與反射性能試驗，證明了該誘餌劑干擾雷達波是可行的。
  3. 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。
  4. Sea clutter is a kind of spurious echoes that is caused by reflection from rough seas

    海雜波是一類假的回波，是由海面的大浪反射雷達微波而引致。
  5. Super - resolution spatial spectrum estimation is applied in this dissertation to realize bearing resolution by utilizing the different bearings between targets and first - order sea echoes. the simulation of radar echoes in one resolution cell is presented based on the theoretically analyzing hf sea clutter sea clutter reflection characteristic and sea echo spectrum stretching mechanics

    本文從分析高頻海雜波反射特性以及平臺運動引起海浪展寬機理入手，建立便於理論研究的一階展寬的海雜波和二階海雜波模型;在分辨單元上對雷達回波信號進行了模擬。
  6. A i med at the badu ( k343 ) i arge seale i andslide in the nankun railway, geophysical exploration techniques such as seismic reflection of high resolution and geological radar are appi ied to detect the geologic characteristics of the landslide mass including 3d - conformation, perimeter, geometric parameters, si ippage pattern and distribution of displacement field in this dissertation. besides, acoustic method is used for detection of the former anti - slide piles and potency losing causations of the piles are analyzed and the sound geological conditions for upgrade of the piles are ascertained by the above investigations

    本文針對南昆鐵路八渡（ k343 ）大型滑坡，運用高解析度反射地震、地質雷達等地球物理探測技術對滑坡體地質進行了詳細的勘測，揭示了八渡滑坡體的空間形態、邊界與幾何參數、滑動方式以及位移場分佈特徵；同時，利用聲波探測對原抗滑樁進行了檢測，分析了失效原因，並查清了擬建抗滑樁地段的地質條件。
  7. Main conclusions drawn from the analyses of calculating results are as follows : ( 1 ) the microwave absorption of atmosphere gas have obvious attenuation at the wavelengths for cloud detection, thereinto, the water attenuation effect changes greatly, so the 94ghz cloud detecting radar should have water vapor attenuation correction scheme. ( 2 ) when 37ghz and 94ghz radars detect clouds, the difference between the atmosphere and cloud attenuation and the large variety of radar reflectivity conduce the intension of the radar backscatter signals change. ( 3 ) for the thin cloud layer and low water content of cloud, 37 - ghz radar backscatter signals are not as good as 94 - ghz radar, that is to say that the 94ghz radar has better capability in thin clouds detection

    本工作得出如下結論： （ 1 ）大氣氣體的微波吸收在測雲波段產生明顯的衰減，其中水汽衰減效應變化很大；即將上天的空間94ghz測雲雷達必須有水汽衰減訂正方案； （ 2 ） 37ghz和94ghz雷達測雲，由於大氣和雲衰減不同和雷達反射率的很大差異，導致雷達回波信號強弱不同； （ 3 ）對雲層較薄、含水量較少的雲，在不計雷達參數的情況下， 37ghz雷達回波信號不如94ghz測雲雷達，也就是說94ghz對薄雲有更強的探測能力；對雲層較厚、含水量大的雲，由於強衰減的作用， 94ghz雷達回波信號小於37ghz雷達； （ 4 ）從大氣衰減的不利因素方面考慮，空間94ghz雷達測高層薄雲的效果最好；測低層薄雲時需要考慮氣體衰減訂正；因濃厚雲的強衰減作用，探測其中下部的能力大大減弱，不僅要進行衰減訂正，而且要藉助其他信息來反演整個雲層的含水量垂直分佈； （ 5 ）為了獲得從極薄到極濃厚雲的垂直分佈探測能力，未來測雲雷達系統最好採用雙波長甚至三波長（如94 、 37和13ghz ） 。
  8. As for a space - based cloud radar, the change of the radar reflectivity n and the change of attenuation rate along with the cloud liquid water content have been compared between 37 ghz and 94ghz. the transmittance t of single level cloud for different heights and liquid water content has also been calculated at 2 frequencies. by defining a = n tr, which combines both effects of radar reflectivity and transmittance, we have examined the values of a at 37ghz and 94ghz for high, middle and low cloud liquid water contents

    對空間測雲雷達，討論了37ghz和94ghz這兩個頻率的雷達反射率和衰減系數隨雲液水含量的變化；計算了不同高度的單層雲在不同頻率，不同含水量情況下的雲層透過率_ ；定義a = _來綜合考慮雷達反射率和透過率對空間測雲雷達回波的影響，分析比較了雲含水量高、中、低時37ghz和94ghz的a值大小。
  9. For parameter a, there is a close relationship exist between a ( 9, sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture, we get the final expression of the inversion model : where mv ( t1 ), mv ( t2 ) is volumetric soil moisture content in two different temp, c, d is soil type related parameters, and v ( t1 ), s ( t2 ) is coresponding bare soil radar backscattering coefficients. inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40, the soil moisture change value can be derived with an acceptable accuracy using the above model. the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover, as well as the soil hydraulic characteristics

    利用最新發展的電磁波散射模型研究了不同植被覆蓋地表雷達波對地表土壤水分的敏感性，建立了半經驗植被雷達後向散射模型; 2 ） .研究發現在農作物等矮小植被覆蓋地表，植被層直接後向散射與植被類型相關，且在植被生長期，雷達後向散射系數對植被含水量的敏感性要高於對植被高度變化的敏感性; 3 ） .解決了單參數雷達地表土壤水分反演問題中，雷達入射角和地表粗糙度的影響這一難點問題; 4 ） .利用土壤介電模型校正了不同土壤類型對反演地表土壤體積含水量的影響; 5 ） .在以上成果基礎上，建立了完整的單參數雷達地表土壤水分變化探測反演演算法，經地表驗證，模型反演地表土壤水分變化值的精度為rmse = 0
  10. The forward model for gpr electromagnetic wave propagation in pavement system is established based on the basic theory of electromagnetic through analyzing the propagation characteristics of electromagnetic wave propagation in pavement, then the reflected signals of gpr wave propagation in different pavement structures are simulated

    基於電磁波基本理論，通過分析雷達電磁波在路面結構層介質中的傳播特性，建立了雷達電磁波在路面結構體系中傳播的正演模型，並依據該模型模擬合成了不同路面結構體系中雷達波的反射信號。
  11. The conclusions from this research include : ( 1 ) the real part mainly effects the delay time between two peaks of gpr signal, the larger the real part, the longer the delay time. ( 2 ) the imaginary part mainly affects the peak amplitude of gpr waveform except that from pavement surface, the higher the imaginary part, the lower the peak amplitude. ( 3 ) the neglect of imaginary part of dielectric will increase the analyzing error obviously when it is higher

    分析了路面結構層材料介電常數實部和虛部對雷達電磁波反射信號的影響，並得出以下結論： （ 1 ）介電常數的實部主要影響雷達反射波的時延，實部越大，時延越長； （ 2 ）虛部主要影響除路表反射波幅之外的其它結構層界面的反射波波幅，虛部越大，反射波幅越小； （ 3 ）當介質介電常數虛部較大時，忽略虛部將給分析結果帶來明顯的誤差； 3
  12. The brightness of the radar image is related to the amount of reflecting water or ice in the clouds except near the radar site

    雷達圖像的亮度與雲中反射雷達波的水滴或冰晶的數量有關，而雷達場附近的圖像亮度除外。
  13. Like light and radar waves, microwaves usually bounce off objects, making them visible to instruments and creating a shadow that can be detected

    就象光波和雷達波一樣，通常微波遇到物體就會反射回來，因此通過設備就能看到物體的成像，或是留下能被探測到的影子。
  14. That enables use to be made of what was previously just irritating noise ? the part of a radar beam that is reflected not from raindrops, but from fixed objects such as buildings

    這種方法使運用那些原先被認為只是由惱人的噪聲組成的東西成為可能? ?這一部分的雷達波不是從雨滴反射來得，而是來自諸如建築物那樣的固定物體。
  15. Solicitor clive burton, who has handled numerous traffic offence cases, said : " i would urge everyone to demand the photographic evidence. there are, i ' m afraid, some quite unreliable devices around.

    法律顧問克萊夫伯頓，曾經經手過無數交通刑事案件，他說：我極力要求每一位被開超速罰單的人都去查看照片，在那裡，我恐怕，有相當不可靠的設備影響到雷達波的反射。
  16. Since the distance from any given radar to each of these reflective surfaces ( which may be as much as 50km, or 30 miles, away ) is known precisely, the time it takes a beam to get there and back is a measure of how much water vapour it contains

    因為可以精確獲取某一雷達到這些反射物體中的任一表面的距離（可能有50公里，即30英里遠） ，人們便可以通過雷達波往返兩地所需的時間測得反射物的水蒸氣含量。
  17. On this map, which spans about 150 kilometers across, dark regions reflect relatively little of the broadcast radar signal

    照片的視野大概是150公里，圖中較暗的區域是比較不易反射雷達波段的地區。
  18. The wall is easily detected from space by radar because its steep, smooth sides provide a prominent surface for reflection of the radar beam

    城墻很容易被雷達探測到，因為城墻的豎直光滑的平面提供了一個反射雷達波束的突出表面。
  19. This paper contains a useful smmary of log normal distribution, weibull distribution and the k - distribution. the weibull distribution may well extend to phenomena other than radar including radiation scattered from turbulent or rough surface

    對雷達波來說，海面是極其復雜的反射體，關鍵是找出一些合適的參數，以便建立一個描述海浪一回波依從關系的數學模型。
  20. It can get the information of the objects in its supervised water area by collecting the reflected electromagnetic wave. because the raw radar video represents the real condition of the supervised water area, it is an important information resource for vts centers and maritime administrative offices to get the evidence on the spot

    雷達利用電磁波反射原理收集監測海域內的物體回波信息，雷達原始視頻數據實時動態地反映了海域內的真實情況，因此對于交通管制和海事取證具有極其重要的作用。
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