目標反射特性 的英文怎麼說

中文拼音 [mùbiāofǎnshètèxìng]
目標反射特性 英文
target reflectivity characteristics
  • 目 : Ⅰ名詞1 （眼睛） eye 2 （大項中再分的小項） item 3 [生物學] （把同一綱的生物按彼此相似的特徵分為幾...
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 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） ...
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 目標 : 1. （對象） target; objective 2. （目的） goal; aim; destination
  • 特性 : characteristic（s）; character; performance; features; properties; behaviour; response; character...
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  2. Research on real - time measuring system about position posture of motional object with four beams of laser and position sensitive detector

    非合作目標相位式激光測距中目標漫反射特性的實驗研究
  3. The second part brings forward a new ar - model - based arm detection method based on features of arm and characteristics of velocity and acceleration of the radar echoes. by establishing two - order ar models, this new detection method computes the poles of models representing different targets, thus estimates the acceleration of the targets so as to determine the nature of the targets. furthermore, this method can not only be applied when the arm is being tracked by radar, but also be put into use in radar ’ s seeking and scanning times

    第二部分則是根據反輻射導彈（ arm ）的特點及其雷達回波信號中速度、加速度等特徵，提出了一種新的基於ar模型的arm檢測演算法，該方法通過建立二階ar模型、估計代表不同目標的模型極點，並由此估算目標加速度來判斷目標性質，該方法不僅可以在雷達已跟蹤上arm后採用，而且適用於雷達搜索掃描時使用，模擬結果表明該方法具有解析度高，對雷達脈沖重復頻率（ pulserepetitionfrequency ， prf ）及積累脈沖數要求不高的特點，在低的prf及少的積累脈沖下，利用該方法仍可有效地識別檢測arm 。
  4. Finally, we choose the proper ccd camera by the analysis or the calculation of the characteristic of the atmosphere, the reflection rate from the object, the dexterity of ccd camera and so on

    通過對大氣特性、目標反射率、 ccd器件靈敏度等的分析和計算，選定ccd相機。
  5. In this paper, various previous brdf models, which include empirical models, geometrical optics models and theory models, are summarized and their merits and demerits are analysed. both shadowing function and facet distribution function as statistical characters of rough surface are discussed besides simpled fresnel reflectance function

    本文首先總結了前人提出的各種目標表面brdf模型? ?經驗模型、幾何光學模型、理論模型等，分析了這些模型的優缺點，論述了隨機粗糙表面幾何光學統計特性? ?遮蔽函數、小面元分佈函數，簡化了菲涅爾反射函數。
  6. The main work of the thesis is as follows : we design a novel omni - mirror more applicable in robocup, which is made up of an isomeric horizontal mirror and an isomeric vertical mirror and can make the resolution of the imaging of the objects near the robot on the field constant and make the distortion of the imaging of the objects far from the robot small in vertical direction ; we select a 1394 digital color camera and complete the development of its software program for data acquisition ; we design a image processing algorithm for the panoramic image, which can segment the image by color, extract the features of image fast and effectively and complete the recognization of target ; according the character of the imaging, we design a new fast hough transform algorithm for line detection, which can detect the white mark lines of the field realtimely, and then design a robot ’ s self - localization method based the mark lines, which only uses the information of omni - vision system ; finally we design a monte carlo localization method based on the information of omni - vision system and odometry, and present the localization results of two localization methods and analyze the experiment results and get the conclusions

    本論文的主要工作如下:設計了一種新的更適用於機器人足球賽的全向反射鏡面，該鏡面由水平等比鏡面和垂直等比鏡面組合而成，能夠使機器人近處一定范圍內水平場地上的物體成像解析度不變，遠處物體成像高度上變形較小;選擇了一款基於1394介面的數字攝像機，並完成其數據採集程序開發;針對全景圖像設計了圖像處理演算法，能夠快速有效的實現圖像顏色分割和圖像特徵提取，完成目標識別;根據全景圖像的成像特性，設計了一種新的用於直線檢測的快速hough變換演算法，能夠實時的提取出場地的白色標志線，並在此基礎上設計了完全利用全向視覺信息的基於標志線的機器人自定位方法;最後設計了一種基於全向視覺信息和里程計信息的montecarlo定位方法，給出兩種方法的定位結果，並分析實驗結果，給出結論。
  7. This paper presents a method that uses many independent backscattering units to replace the whole object, which reflects the geological characteristics of objects on ground to some extent. 2

    在對回波信號的模擬中本文提出了將目標表面分成許多獨立散射單元來代替整個面目標的實現方法，在一定程度上反映了地物目標的幾何特性。
  8. The exo - atmospheric combat enviroment is introduced, including the outer - space ’ s optical signature, the optical and dynamic signature of the potential targets. the research focus is the precessing rv and tumbling decoy ’ s irradiance intensity ’ s periodical changing rule. a double periodical function model is presented to simulate their irradiance functions

    根據空間彈道目標的光學與運動學特性，重點研究了進動旋轉的彈頭和翻滾運動的誘餌的光學強度序列信號的周期性變化規律，並採用雙周期性函數來表示該光學強度信號，以反映彈頭和誘餌在運動特性和表面輻射特徵方面的差異。
  9. The main works and results are as follows : 1. by use of one order multiple scattering theory, light scattering and reflection by a single coating layer is analyzed. the variance of radiation intensity, bidirectional reflection distribution function ( brdf ) and laser radar scattering cross section with coating layer parameters is given, with the effect of rough contrast on bidirectional reflection distribution function

    本文主要研究了單層和多層塗層結構介質的光散射特性，以及近場條件下復雜目標對激光波束的散射，其主要工作如下： 1 、採用一階多重散射近似理論分析單層塗層對光波的散射和反射，計算並討論了輻射強度、雙向反射分佈函數和單位面積激光雷達散射截面隨塗層結構參數的變化規律，數值分析了粗糙基底對雙向反射分佈函數的影響。
  10. The reflected characteristic is coincident approximately with a certain uniform target on ground, so their output values should be nearly the same if there is no responsive difference between each detector

    對於一定范圍的單一均勻地表目標而言，其反射特性是基本一致的，因此如果各個探測器之間不存在響應差異，那麼其輸出值也應該是基本一致的。
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