spectral characteristic 中文意思是什麼

spectral characteristic 解釋
波譜特性
  • spectral : adj. 1. 鬼的；鬼怪（似）的。2. 【物理學】光譜的。
  • characteristic : adj 有特性的；表示…特性的，…特有的。 Japan s characteristic art 日本特有的藝術。n 特性，特徵，性...
  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. Colour filter glass test methods spectral characteristic

    濾光玻璃測試方法光譜特性
  3. Conclusion this result shows that that the pinna and concha have almost no effect no sound localization in horizontal plane, which means spectral characteristic does not possihly dominate in horizorntal plane

    結論實驗表明耳廓和外耳道對水平方向的聲音定位幾乎無影響，也就是說在水平方向上的聲音定位，耳廓和外耳道的濾波、共振等改變聲波頻譜特性作用可能不明顯。
  4. On the basis of remote sensing technique ' s good characteristic with large - area, multi - time, multi - photograph variety, manifold abundant spectral information and high ground resolution, the fault tectonics frame, river geomorphy ( such as terrace, floodplain, shoal, etc ) and suspended load, etc. were explained after analyzed the fault tectonics, river geomorphy, characteristic in the tm image by gray bar statistics, primary component analyses, tm741 image integration, line convolve enhancement and model recognition etc. especially 9 piece of fault tectonics were explained in this thesis, in succession, the impacts of the factors severally were analyzed

    遙感技術具有大范圍、多時相、多片種、多層次、含有豐富的光譜信息及具有較高的地面解析度的特點。本文利用該技術，運用灰階統計特徵分析和主成分分析、 tm741多波段融合、線性卷積增強、模型提取等一系列遙感解譯分析方法，分析了斷裂構造、河流地貌（階地、漫灘、沙洲）及懸浮物等在tm遙感圖象上的影像特徵，解譯出了安徽南部斷裂構造格架、河流地貌和懸浮物的分佈，並新解譯出了9條近東西向的斷裂。
  5. The spectral response characteristic series of photocathodes

    光電陰極光譜響應特性系列
  6. This key characteristic makes it possible to enhance the photoconductivity properties, and to adjust the spectral response range of devices made by mpc, which leads a bright future for application of phthalocyanines in opto - electronic field

    酞菁金屬配合物的突出特點之一是其能帶結構易於剪裁，可通過不同方法加以改變，從而達到改善器件光電導性能，調整光譜響應范圍等目的。
  7. Spectral measurement of radiation ; physical detectors for spectral measurement of radiation ; terminology, characteristic quantities, selection criteria

    發射光的光譜測量.發射光的光譜測量用物理探測器.術
  8. The influenced characteristic spectral lines exhibit as down peaks or group of down peaks for natural light, while the sharpened peaks for fluorescence light

    雖干擾表現形式不同，但都有嚴重地影響，在測定時一定要引起重視，不能忽略。
  9. Observation of the on - off sequencing of characteristic spectral lines from tracer materials arranged in layers in, or surface patterns on, planar or spherical targets can provide a record of radial or lateral energy transport processes in laser - generated plasmas

    測量激光聚變靶產生的軟x射線時間變化連續譜的形狀，可以知道許多x射線產生過程的詳細動態記錄，這有助於理解實驗的熱學條件。觀察軌跡特徵譜線的閉合序列，能提供關于激光等離子體激發能量和滯后能量的傳輸過程記錄。
  10. Choosing high quanlity colored glass for material, utilizing processing, we fanricate xiangyang filter. its coated surface and its specific spectral characteristic can meet your all kinds of demands

    向陽牌系列光學濾色鏡，是採用有色光學玻璃材料，經過光學加工和表面真空鍍膜的，它具有特定光譜特性。在攝影或攝像時使用向陽牌濾色鏡，定能獲得理想的效果。
  11. This dissertation is different from traditional speech enhancement methods which are based on noise characteristic such as adaptive noise cancellation or spectral subtraction processing. in this dissertation the speech signal conducted by bone was taken as the object to be studied and the exploitive study on the acoustical characteristic of speech signal conducted by bone was performed by the method of theory combined with experiment. then a proposition about speech reconstruction based on speech signal conducted by bone was presented, and the design of software and hardware was completed

    本文與傳統的基於噪聲特性的自適應噪聲抵消法、頻譜減法等語音增強降噪技術不同，是以骨導語言為研究對象，採用理論與實驗相結合的方法對骨導信號的聲學特性進行了探索性研究，進而提出了基於骨導信號的語音重構技術，並完成了相應的軟硬體開發。
  12. In this thesis, complex analytical band - pass filtering based method is proposed to reduce the modulation complexity ; polyphase decomposition is used to reduce the filtering complexity ; uniform dft filter banks based method exploits the center frequency distribution characteristic of filter banks to reduces the modulation and spectral resort processes

    而基於均勻dft濾波器組的演算法充分利用了濾波器組的中心頻率的分佈特點，省略了復頻移環節和整序環節，同時利用多相分解的方法改善了濾波環節，兼有各種方法的優點而大大的提高了演算法的實時性。
  13. The study of ds signals in this article broke through the conventional detection and estimation methods and modeled the ds signals as a cyclostationary random process. in this case, it can be analyzed by the theory of spectral correlation, and then we can finish the parameter estimation of ds signals by its characteristic in the field of spectral correlation

    本文對低信噪比下的ds信號的研究突破常規信號檢測和估計理論，將ds信號建模為周期平穩隨機過程，應用譜相關理論來分析它的譜相關域特性，尋求ds信號的參數在譜相關域的特徵表現，從中提取相應的ds信號參數信息。
  14. The operation principle of icw radar is introduced in detail. the author compared several spectral estimation methods, calculated the parameters of the radar receiving system, analyzed the characteristic of maximum entropy spectral estimation algorithm and verified its operation parameters of practical algorithm in icw radar. a theoretical study is made

    論文較詳細地闡述了中斷連續波雷達工作原理，對多種譜估計方法進行了比較，分析了最大熵預測外推演算法的特點，計算了雷達接收系統參數，確定了最大熵預測外推實用演算法的工作參數，在理論方面作了較深入研究。
  15. The distribution coefficient of re3 + ( nd3 + and yb3 ) ， the refractive index and the crystal lattice were tested. through the measured data of absorption spectrum, fluorescence spectrum and fluorescence lifetime, the spectral characteristic parameters of ( nd3 +, yb3 + ) : yp0. 1v0. 9o4 crystals were calculated and contrasted, and the advandages of them have been showed

    通過測試各晶體的吸收光譜、熒光光譜和熒光壽命，分析了摻不同濃度nd3 + 、 yb3 +離子激光晶體的光譜特性，對比研究了以yv0 . 9p0 . 1o4作為基質晶體所具有的優越性和缺陷。
  16. Standard lamp and diffusers are very important calibration elements, in chapter three, first uv and vuv radiometric standard for calibration are introduced. then the fabrication and characteristics of baso4 diffuser and alminium diffuser are researched, the baso4 diffuser ' s hemispheric reflectance and bi - directional reflectance distribution function were measured and compared with lambtian surface, and the deviation from that of lambtian surface is given. in the experiment, al diffuser ' s brdf is researched, obtain the change of spectral characteristic of al diffuser, compare al diffuser ' s brdf before and after coated with al + mgf2, and different al diffusers with different surface roughness

    鋁漫反射板作為一個漫反射光學元件安裝在太陽紫外光譜監視器的入射狹縫前，太陽紫外光譜監視器在軌測量時，太陽輻射入射到鋁漫反射板后進入入射狹縫，光譜輻照度的角度是變化的，本章測量了鋁漫反射的相對雙向反射分佈函數，研究了鍍膜（ al + mgf _ 2 ）前後光譜反射率的變化，漫反射的光譜特性及漫反射板表面粗糙度對相對雙向反射分佈函數的影響，使得測量數據反演成為可能。
  17. Ds signal is twice modulated with the rapid pseudorandom noise sequence and the carrier. so it appears cyclostationary. in the field of spectral correlation, ds signals appears its characteristic as fallows : for the amplitude of spectral correlation, the information of carrier frequency and pn code rate are contained on the spectrum frequency equal to zero sheet, and also the pn code rate is contained on the sheet of spectrum frequency equal to carrier frequency ; for the phase of spectral correlation, the information of carrier initial phase is contained on the sheet of cyclic frequency equal to double carrier frequency

    Ds信號是經過高速偽隨機序列和正弦載波二次調制的寬帶信號，因此具有周期平穩特性，它在譜相關域表現為:幅頻特性在譜頻率等於零截面切片上包含了載頻和偽碼速率信息特徵，在譜頻率等於載頻截面切片上包含了偽碼速率信息特徵;相頻特性在循環頻率等於兩倍載頻截面切片上包含了載波初相信息特徵。
  18. The intersystem frequency interference among 3g communication systems secondly, lemp was researched. mechanism and spectral characteristic of lemp were analyzed in detail. the attacking form of lemp to base station was discussed

    第二，對雷電電磁脈沖進行了研究，詳細分析了雷電電磁脈沖的產生機理以及雷電電磁脈沖的頻譜特性，討論了雷電電磁脈沖對寬帶無線接入基站的襲擊形式。
  19. The results show that this method is valid, and is effective to preserve the spectral characteristic of non - noise pixel

    實驗證明，該方法是有效可行的，而且這種方法不會影響到非噪聲像元的灰度信息。
  20. Spectral characteristic curve

    光譜特性曲線
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