spectrum of reflection 中文意思是什麼

spectrum of reflection 解釋
反射光譜
  • spectrum : n. （pl. -tra ）1. 【物理學】譜，光譜；波譜；能譜，質譜。2. 【無線電】射頻頻譜；無線電（信號）頻譜。3. 【心理學】（眼睛的）余像；殘像。4. 〈轉義〉范圍，幅度；（連續的）系列。
  • of : OF ＝Old French 古法語。
  • reflection : n 1 【物，計】反射；反射波[光，熱，音，色]。2 反映；反影，映像，（映在水等中的）影像；〈比喻〉學...
  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. 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。
  3. In the study of directional spectrum and reflection coefficient of multidirectional wave, firstly the wave elevation trains overlapped by the incident wave and the reflected wave of multidirectional wave are simulated in the method of a frequency corresponding to a direction. then the composed wave trains are analyzed respectively by the mbdm and the mmlm. during the numerical study, the input factors include the various wave parameters, the different measuring wave system and the various reflect characteristic

    在多向不規則波入射波方向譜和反射系數的分析研究中，利用方向頻率對應法模擬了多向不規則波入射波與反射波疊加的波面序列，將此合成波列分別應用mbdm和mmlm進行分析，通過輸入各種波浪參量、不同波浪測量系統和各種反射特性等因子，檢驗了mbdm和mmlm方法的適用條件，對兩種分析方法的性能進行了比較分析。
  4. By utilizing the comb - like reflection spectrum of a hi - bi fiber loop mirror to suppress the ase ( amplified spontaneous emission ) of a double - pass edfa, the noise figure of this amplifier is much improved

    利用雙折射環鏡的梳狀反射特性抑制雙通edfa的ase ，從而使放大器的噪聲性能得到了明顯改善。
  5. Omni sampler, the attenuated total reflection accessory of the fourier transform infrared spectrometer, was used to analyze the infrared spectrum of chloride butyl rubber and brominized butyl rubber bottle closures used as medical and pharmaceutical package

    摘要採用傅里葉變換紅外光譜儀的衰減全反射附件omni采樣器，對醫藥包裝用氯化丁基橡膠和溴化丁基像膠瓶塞樣品進行了紅外光譜分析。
  6. Peaking in the frequency spectrum due to repetition of signals by multiple reflection is not confined to water layers.

    多次反射波引起的信號重復在頻譜中造成的峰值增多，並不僅僅局限於水層。
  7. Study on simulation of reflection spectrum and group delay in chirped fiber grating

    啁啾光纖光柵反射譜與時延模擬研究
  8. In the analysis of the frequent spectrum and the reflection coefficients, based on goda ' s two - points method which fit to the normal incident wave, a modified two - points method is derived that can be used to calculate the frequent spectrum and reflection coefficient of the oblique waves from which the frequent spectra of incident waves and reflected waves incoming in arbitrary angular, the bulk reflection coefficient and the frequent spectrum of reflection coefficient could be computed, also from which in theory the waves could be measured in two wave gauges which is disposed at any direction

    為了分析單向不規則波入射波的頻率譜和反射系數，本文在goda用於分析正向不規則波的兩點法的基礎上，提出了可用於斜向不規則波頻譜分離及其反射系數計算的改進兩點法，該方法可用於計算任意波浪入射角的入、反射波譜、總體反射系數和反射系數的頻率譜，並且測量波浪過程的兩浪高儀可在較廣的方向范圍內布置。
  9. In wcdma system which uses direct sequence to spread spectrum, the spread spectrum code ( pn code ) phase of the receiver must be synchronized with that of the received signal precisely to despread and demodulate the signal correctly. multipath channel exists in the mobile communication environment for the radio signal reflection by obstacles between transmitters and receivers. by using the autocorrelation of the spread sprectrum code, rake receiver can process received signals and therefore multipath components can be resolvable

    在wcdma系統中，為正確解擴解調接收到的擴頻信號，接收機本地產生的擴頻碼（ pn碼）相位必須和接收信號中的擴頻碼相位完全同步;同時移動通信環境中的傳輸信號由於接收機和發射機之間的直達路徑有可能被建築物或其他障礙物所阻礙，總是經過折射或反射的多條路徑后才到達接收機，從而產生多徑通道。
  10. Reflection and transmission spectrum of sound at anisotropic solid layer

    各向異性固體層的聲反射和透射譜
  11. Study on fourier transform infrared reflection spectrum of bioactive glasses

    生物活性玻璃的紅外漫反射光譜研究
  12. This paper presents that the directional spectra and the reflection coefficients of the oblique and the multidirectional irregular waves on the co - exist wave field of incident wave and reflected wave have been studied. a modified two - points method is proposed that can be used to calculate the frequent spectrum and reflection coefficient of the oblique waves. for the multidirectional irregular waves, the directional spectra and reflection coefficients are obtained by the modified bayesian directional method and the modified maximum likelihood method

    本文研究了入、反射波共存場中斜向不規則波和多向不規則波波浪場的方向譜和反射系數，對于斜向不規則波頻率譜及反射系數的計算提出了一種改進兩點法（ mtpm ） ，對于多向不規則波方向譜和反射系數的分析，應用了改進的貝葉斯方法（ mbdm ）和改進的最大似然法（ mmlm ） 。
  13. A study on the characteristics of reflection spectrum of field of view under night - sky radiation

    夜天光下景物反射光譜特性的研究
  14. After the systemic comparison of the two methods, the detail applicable conditions have been suggested. by the physical model tests and various methods, the frequent spectrum and the directional spectrum of incident waves and reflected waves of slope breakwater have been investigated systemically, and the bulk reflection coefficients, the directional spreading of reflection coefficients and the frequent spect

    通過物理模型試驗，系統地研究了斜坡堤前入、反射波方向譜的分離計算，採用mtpm分析得到了單向（包括斜向）不規則波的總體反射系數和反射系數頻率譜（隨堤坡變化）以及由iribarren數表示的包含堤坡影響的反射系數頻率譜。
  15. The article studies the reflection and radiation light spectrum of the object under the night sky light or with the aid of laser, calculates and analyzes the spectrum matching factor of typical optoelectronic cathode to the common objects and the effect on the light contrast and give the detailed mechanical design of the low light night observing instrument on helmet

    摘要本文研究了夜天光照射及激光助視下的景物反射輻射光譜特性，計算並分析了典型光電陰極對常見景物反射的光譜匹配系數及其對照度、對比度等參數的影響，並詳細對頭盔式微光夜視儀進行結構設計。
  16. Usually, it is thought that the lasing wavelength of a fgesl is locked at the bragg reflection wavelength of fiber grating ( fg ). owing to a relatively small dependence of the reflection spectrum of fg on ambient temperature ( - 0. 01nm / c ), the lasing wavelength of a fgesl is thought to behave more stable than that of a dfb - ld

    由於fgesl的激射波長主要由光纖光柵（ fg ）的布拉格波長確定，因此選擇具有合適布拉格波長的fg就能使fgesl的激射波長處于預置波長處；同時，由於fg的布拉格波長受溫度變化的影響相對較小（ 0 . 01nm ） ，因此fgesl與dfb - ld相比具有更高的溫度穩定性。
  17. A directional spectrum of the reflection coefficients is suggested and an empirical formula of the directional spectrum of the reflection coefficients for slope breakwaters are given by the model tests

    通過分析研究，提出了波浪場反射系數方向譜的概念，並由模型試驗結果給出了斜坡堤前反射系數方向譜的經驗公式。
  18. The method has been used to separate the frequent spectra of incident waves and reflected waves of the composed wave that are simulated by a numerical method. the results shown that the frequent spectra of incident waves and reflected waves being computed are consistent with the target spectrum and the bulk reflection coefficient is too. the frequent spectrum of reflection coefficient is same as the input round the peak frequency

    將此方法用模擬合成波波列的分離計算，結果表明，分離的入、反射波頻譜與輸入的靶譜符合良好，且計算的總體反射系數與輸入的總體反射系數一致，計算得到的反射系數頻率譜在峰頻附近與輸入值符合良好，說明該分析方法是可靠的。
  19. Based on the coupled mode theory, the reflect spectrum of ofbg is derived. the influenced of grating length, coupling coefficient and chirp coefficient to the maxium reflectivity and reflection bandwidth of ofbg are discussed in details. we find that under weak couple conditions ( the couple coefficient k < 1 ), the reflect spectrum of an ofbg approximately has a characteristic of sa2 ( x ) shape, which matched to the power spectrum of an optical communication signal

    本文在利用耦合模理論對均勻及線性啁啾變跡光纖光柵（ ofbg ： opticalfiberbragggrating ）的反射譜進行分析的基礎上，發現弱耦合條件下（耦合系數1 ） ，均勻ofbg的反射譜具有類似與sa ~ 2 （ x ）函數的分佈特性，從而創新提出利用ofbg對光纖通信系統中光放大器的ase噪聲進行匹配光濾波的設想。
  20. The journey on the path of love portrayed in this volume encompasses a wide spectrum of sensations from intense passion to deep reflection

    詩集中描繪了作者追尋真愛的歷程從澎湃的情感到深切的省思，透徹地傳達了其內在種種的情懷。
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