雷達反射體 的英文怎麼說

中文拼音 [léifǎnshè]
雷達反射體 英文
radar reflector
  • : 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
  • : Ⅰ動詞1 (暢通) extend 2 (達到) reach; attain; amount to 3 (通曉; 明白) understand thoroughly...
  • : Ⅰ名詞1 (方向相背) reverse side 2 (造反) rebellion 3 (指反革命、反動派) counterrevolutionari...
  • : 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) ...
  • : 體構詞成分。
  • 雷達 : [訊] radar (縮自 radio detection and ranging)
  1. 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,運用高解析度地震、地質等地球物理探測技術對滑坡地質進行了詳細的勘測,揭示了八渡滑坡的空間形態、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。
  2. 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測雲必須有水汽衰減訂正方案; ( 2 ) 37ghz和94ghz測雲,由於大氣和雲衰減不同和率的很大差異,導致回波信號強弱不同; ( 3 )對雲層較薄、含水量較少的雲,在不計參數的情況下, 37ghz回波信號不如94ghz測雲,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回波信號小於37ghz; ( 4 )從大氣衰減的不利因素方面考慮,空間94ghz測高層薄雲的效果最好;測低層薄雲時需要考慮氣衰減訂正;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,未來測雲系統最好採用雙波長甚至三波長(如94 、 37和13ghz ) 。
  3. Abstract : this paper describes the working principle of drillhole radar and recommends two working patterns : single - drillhole reflection and crosshole tomographic imaging. the technique was used to make lithologic evaluation of deep strata and detect geological anomalous bodies with obvious effects obtained

    文摘:闡述了鉆孔的工作原理,介紹了單孔和跨孔層析成像2種工作方式,並將其用於深部巖層巖性評價和地質異常探測,效果顯著。
  4. Nowadays, the application of electronic support measure ( esm ) receivers, radar warning receivers ( rwr ) and especially arm forms a serious menace to radar ' s existence and the low probability of interception ( lpi ) radar just appears under this circumstance. lpi radar attempts to use various techniques to make radar signal not be intercepted by intercept receivers

    現代電子支援偵察( esm )接收機和告警接收機( rwr )尤其是導彈( arm )的應用對的生存構成了嚴重的威脅,低截獲概率正是在這種環境下提出的一種新,它試圖採用各種可能的技術來避免信號被截獲接收機所截獲。
  5. 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模型研究了不同植被覆蓋地表波對地表土壤水分的敏感性,建立了半經驗植被後向散模型; 2 ) .研究發現在農作物等矮小植被覆蓋地表,植被層直接後向散與植被類型相關,且在植被生長期,後向散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 ) .解決了單參數地表土壤水分演問題中,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演地表土壤積含水量的影響; 5 ) .在以上成果基礎上,建立了完整的單參數地表土壤水分變化探測演演算法,經地表驗證,模型演地表土壤水分變化值的精度為rmse = 0
  6. 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,通過分析電磁波在路面結構層介質中的傳播特性,建立了電磁波在路面結構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系中波的信號。
  7. Like light and radar waves, microwaves usually bounce off objects, making them visible to instruments and creating a shadow that can be detected

    就象光波和波一樣,通常微波遇到物就會回來,因此通過設備就能看到物的成像,或是留下能被探測到的影子。
  8. 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? ?這一部分的波不是從雨滴來得,而是來自諸如建築物那樣的固定物
  9. 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到這些中的任一表面的距離(可能有50公里,即30英里遠) ,人們便可以通過波往返兩地所需的時間測得物的水蒸氣含量。
  10. The research of the laser measuring global radar technology can meet the need of the measurement on surface precision of radar antenna reflector under the working state. and it is important to analyze the precision of radar antenna surface measurement technology

    激光檢測整技術研究是為滿足對天線在工作狀態下的型面精度檢測的需要,而對天線型面精度檢測技術進行精度分析也是相當重要的。
  11. 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

    波來說,海面是極其復雜的,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。
  12. In this dissertation, first, the basic conceptions of ew, radar ew and combat effectiveness are made clear about internal characteristics, consist and tasks. then, the evaluation factors architecture of radar ew system combat effectiveness is set up, which is the base of quantificational evaluation. second, mathematics modeling of radar ew reconnaissance, radar jamming and anti radiation attack are constructed

    本論文的研究首先從電子戰、對抗、武器裝備作戰效能的基本概念出發,理清其內涵、特點、組成、任務,從而建立以能力為主線的對抗系統作戰效能評估指標系,為定量評估系統作戰效能奠定基礎;然後分偵察、干擾、攻擊分別對對抗系統武器裝備的電子偵察能力、電子干擾能力、電子進攻能力進行數學建模,進而建立系統綜合對抗能力數學模型,為系統模擬建立設計基礎。
  13. 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

    利用電磁波原理收集監測海域內的物回波信息,原始視頻數據實時動態地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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