孔特雷 的英文怎麼說
中文拼音 [kǒngtèléi]
孔特雷
英文
contray-
They rode through the village of rykonty, past french picket ropes, sentinels, and soldiers, who saluted their colonel and stared with curiosity at the russian uniform
他們從法國驃騎兵的拴馬地經過,從向自己的上校敬禮並且好奇地打量俄國軍裝的哨兵和士兵們旁邊穿過雷孔特村莊,走到村子的另一邊。Polarimetric sar interferometry ( polinsar ) is the technique that integrates radar polarimetry and radar interferometry. the interferometric analysis of a full coherent polarimetric data set enables the combination of final structure properties and spatial information of the targets
極化干涉合成孔徑雷達( polinsar )集polsar和insar測量技術於一體,可以同時把目標的精細物理特徵與空間分佈特性結合起來。Polarimetric synthetic aperture radar ( polsar ) investigates the transverse vectorial nature of plane em waves and provides the complex scattering matrix of a scatterer. scattering polarimetry is sensitive to the shape, orientation, and dielectric properties of scatters
極化合成孔徑雷達( polsar )研究電磁波的矢量特徵,通過測量和分析目標的極化散射特性,獲取目標的介電常數、物理特性、幾何形狀和取向等方面的大量信息。The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering
本文從星載雷達的星地幾何關系入手,舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型,研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法,並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體,完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析,最後完成雷達回波信號的模擬。Reynolds numbers ( based on average velocity at passage inlet and hydraulic diameter of the passage ) are changing from 20000 to 80000 and the extraction ratios ( suction ratios, sr ) are changing from 0. 30 to 0. 60 for each test model. so the influences of reynolds numbers, suction ratios and etc. on the discharge coefficients and pressure loss characterist ics are also presented. flow fields of typical passages are visualized with the flow visualization techniques and measured with hot - wire anemometer
對每一種通道結構,實驗在不同通道進口雷諾數( re = 20000 、 40000 、 60000 、 80000 )和不同通道總出流比( sr = 0 . 30 、 0 . 45 、 0 . 60 )下進行,以研究這兩個流動參數及其它相應變化的參數(氣膜孔的雷諾數re _ h 、氣膜孔與通道的動量比i等)對出流特性和流阻特性的影響規律。The multiscale mixed distribution models ( mmdm ) and the multiscale autoregressive ( mar ) models are investigated in this thesis, and they are applied to the unsupervised segmentation of the synthetic aperture radar ( sar ) image by joining them together - the multiscale mixed distribution models as the feature extractor and the multiscale autoregressive models as the classifier
本文對多尺度混合分佈模型( multiscalemixturedistributionmodels簡記mmdm ) ,其中主要是對多尺度混合gauss分佈模型( multiscalemixturegaussianmodels簡記mmgm )和多尺度混合rayleigh分佈模型( multiscalemixturerayleighmodels簡記mmrm )進行了研究,及對多尺度自回歸( multiscaleautoregressive簡記mar )模型進行了研究,並將mmdm作為圖像分割的分類器, mar模型作為圖像分割的特徵提取器對合成孔徑雷達( syntheticapertureradar簡記sar )圖像無監督分割進行了研究。Olympique lyon sports chief bernard lacombe has again confirmed their push for juventus ace david trezeguet
里昂俱樂部體育主任拉孔貝已經再次確認他們想得到尤文圖斯的王牌大衛.特雷澤蓋。“ we went to turin to talk with juventus about trezeguet, it ' s true, ” lyon ' s sports director bernard lacombe told ‘ france 3 ’ television channel
"我們去到都靈和尤文圖斯討論了特雷澤蓋轉會之事,這是真的, "里昂的體育主管貝爾納德.拉孔布告訴法國第三電視頻道This paper ' s study is focused on the principle of bistatic sar on the basis of giving a brief introduction of sar principle, including azimuth resolution, mapping width, focusing deepness, pulse repetition frequency limitation and radar equation etc. then the paper studies the special form of bistatic sar with stationary transmitter
在簡要介紹了合成孔徑雷達的成像原理后,本文著重從原理方面對雙站sar進行了分析,討論雙站sar的方位向解析度,測繪帶寬,聚焦深度,脈沖重復頻率限制,雷達方程等問題,然後對發射機固定的雙站sar這種特殊的雙站sar模式進行分析。With its ability to image the earth ' s surface in nearly all weather conditions, together with its high spatial resolution, sar has shown its potential for classifying and monitoring geophysical parameters both locally and globally. however, speckle in sar images disturbs its applications
Sar全天候、全天時工作和穿透一些地物的特點,使合成孔徑雷達遙感在固體地球科學、生態科學、水文科學和海洋科學等領域正發揮著越來越重要的作用,但sar圖像的斑點阻礙了sar的應用。A brief introduction of synthetic aperture radar ( sar ) and the application of sar image data in the research of crest length distribution is introduced. the method to compute the action of random waves with different crest lengths on vlfs. is also reviewed
對星載合成孔徑雷達及其在波峰長度統計特性研究中的應用以及不同波峰長度海浪對超大型海上結構物的作用作了一個簡單的介紹,闡明了下一步的研究工作的思路。Based on the vector radiative transfer theory and the characteristics of the sar technology, several sub - models for rice backscattering are constructed, including the leaf scattering model, the leaf extinction model, the trunk scattering model, the trunk extinction model and the water reflection model. then an integrated model for the first - order scattering mechanisms of rice, including all the main physical processes, is achieved
針對合成孔徑雷達sar的技術特點,以水稻為研究對象,從矢量輻射傳輸理論vrt出發,通過模擬水稻主要器官稻葉和稻桿對電磁波的散射衰減作用等物理過程,建立了一套完整的水稻一次後向散射作用的物理模型,用以模擬水稻層的後向散射系數This method offers more precise geometry for spaceborne sar system design and simulation. 3. in the analyzing on the radar doppler properties, under the ellipsoid earth model and ellipse orbit model, considering the earth rotation, the radar doppler properties with different orbit eccentricity are compared, and the fact that orbit eccentricity affects doppler frequency rate is found
在雷達多普勒特性分析中,論文採用橢球地球模型和橢圓軌道模型,結合地球的自轉,通過不同偏心率下雷達多普勒特性的比較,研究了軌道偏心率對合成孔徑雷達系統設計與模擬軟體研究雷達多普勒調頻斜率的影響。Synthetic aperture radar ( sar ), as a high resolution microwave instrument, has an important status in the remote sensing. it has ability of large planetary image areas in all weather during day and night and has ability of penetrating, these characteristics make it very important in applied aspect
合成孔徑雷達( sar )是一種高解析度的微波遙感設備,在遙感成像領域有著舉足輕重的地位,它具有全天時、全天候、大面積成像的工作能力,並對地物有一定的穿透能力,這些特點使它在應用方面具有極端的重要性。Firstly, the principle of high resolution sar and theoretical imaging model were concisely introduced. pulse compression for line frequency modulation pulse signal, resolution of range direction and azimuth direction, and doppler history were discussed subsequently. in accordance with sar signal processing, range immigration was also involved
本文首先分析了合成孔徑雷達高分辯力成像機理和sar成像理論模型,討論了線性調頻脈沖信號的匹配濾波(脈沖壓縮) 、 sar距離特性、方位特性和多普勒歷史,同時針對sar成像信號處理,分析了成像處理的基本原理和成像處理中的距離遷移校正等關鍵問題。The polarimetric sar is a new type imaging radar to measure polarimetric characteristic of radiant signals and combines both advantage of measuring full complex scattering matrix for each resolution cell in a scene and producing two - dimensional high resolution images, which greatly improve its ability to discern surface features. polarimetric sar is thus playing a more and more important role in research on remote sensing and application area
極化合成孔徑雷達( polarimetricsar )是用來測量輻射信號極化特徵的新型成像雷達,具有能夠測量場景中每個分辨單元的全極化散射矩陣和產生二維高解析度圖像的兩大優點,大大提高了它對地物的識別能力,因此在遙感技術研究與應用領域中起著越來越重要的作用。The concept, advantages and history of bistatic isar are introduced first in this paper, then 2 - d turntable imaging of monostatic isar the special example of bistatic isar is studied. on the basis of monostatic isar four imaging algorithms are analyzed, including fft algorithm, filtered backprojection algorithm, spectrum extrapolation algorithm and esprit algorithm, and compared in the small and big angel of imaging. on the basis of monostatic imaging the 2 - d turntable imaging principle of bistatic isar is studied,
本文首先闡述了雙站逆合成孔徑雷達的概念、優點和發展歷程,然後研究了雙站逆合成孔徑雷達的特例? ?單站逆合成孔徑雷達對轉臺目標的二維成像演算法,並在此基礎上分析了四種主要的轉臺成像演算法, fft演算法、濾波逆投影演算法、譜外推演算法和esprit演算法,並對以上各種演算法分別在小角度和大角度下的成像性能進行了比較。Two common - used synthetic aperture radar imaging algorithms, range - doppler algorithm and chirp - scaling algorithm, have been analyzed and tested using compute simulation and real synthetic aperture radar data. one key issue of the synthetic aperture radar high resolution imaging is how to obtain sar image of high geometrical resolution
在此基礎上,討論了合成孔徑雷達距離多普勒成像演算法以及chirp - scaling成像演算法,分析了各自的特點,對兩種成像演算法進行了計算機模擬實驗以及實際數據實驗驗證。Synthetic aperture radar work making use of microwave and it is coherent - imaging system. synthetic aperture radar is little affected by atmospheric condi - tions. it also allows night imaging. so it playes a more and more important role in both civil and military areas
合成孔徑雷達( sar )是一種工作在微波波段的相干成像雷達,由於其全天候和強透射性等特點,在軍事和民用方面顯示出巨大的發展潛力和廣泛的應用前景。Synthetic aperture radar ( sar ) is an active microwave remote sensing imaging system, which is widely used in earth observation and military detection due to its quality of working all day, all weather and its penetration ability in certain frequency band
合成孔徑雷達( sar )是一種主動式成像雷達,由於它具有全天時、全天候的監測特性,並且在一定波段對植被、淺層土壤具有穿透能力,因此被廣泛應用於農林、地質、水文、海洋與環境監測、國防等領域。分享友人