色分復用 的英文怎麼說
中文拼音 [shǎifēnfùyòng]
色分復用
英文
colour-division multiplexing-
The general nonlinear propagation equations of four - lightwaves in birefringent fibers are deduced. the characteristics of polarization mode dispersion in 4 + 10gb / sdwdm system in dispersion - flattened fibers is studied. our results show that pmd exerts a detrimental influence on 4 x logb / sdwdm system in limiting transmission rate and the channel numbers
本論文研究波分復用（ wdm ）系統中偏振模色散的影響，主要工作包括下面兩個部分：一、導出了四波長光波在雙折射光纖中傳輸所滿足的一般非線性耦合方程；在此基礎上，研究色散平坦光纖中4 10gb sdwdm系統的偏振模色散特性，並且進一步研究了偏振模色散對不同通道間隔的4 10gb sdwdm系統的影響。A systematic summary of previous work has been given first. then this paper presents a novel multi - stage face detection algorithm, which makes a good use of human face pattern ' s valuable information in colour image sequences. the difficult detection task has been divided into four steps : the preprocessing, which is to gain skin colored regions with human skin color model ; the roughly detection and face region refining by elliptic curve fitting ; the fine detection with facial features " detection and location ; the face / non - face classification step based on pca and gaussian density estimation technique
本文對彩色序列圖像中的人臉檢測和跟蹤技術進行了深入的研究，其具體內容為：對近年來的研究工作進行了系統的介紹；提出了一個由粗到細的多階段的人臉檢測演算法，該演算法充分利用了序列圖像中人臉模式的各種有用信息，將復雜的檢測工作分為了四個部分：膚色區域分割預處理，人臉粗檢及利用橢圓擬和的人臉區域提煉，應用人臉基本特徵檢測和定位的人臉細檢， pca結合高斯概率密度估計的人臉驗證。When the foundation and the intake tower are both important analytical objects, and the geological condition of foundation is very complex, the slope is meshed with tetrahedral element, while the intake tower is meshed with hexahedral element
本文針對百色水電站的地基和進水塔均是主要分析對象，而地基的地質條件十分復雜，提出了非一致網格位移協調解法。地基採用四面體單元和進水塔採用六面體單元。The spectral and group delay characteristics are studied and the potential uses of this type of grating for wavelength selection and dispersion compensation are discussed. a novel scheme of oadm configuration based on linearly chirped moir fiber gratings is proposed. we have designed a lcmfg to compensate dispersions for eight channels at the same time
在此基礎上，提出了一種新型的基於線性啁啾moir光纖光柵的光分插復用器（ oadm ）的結構設計方案；並設計出一種中心波長、相鄰中心波長間隔都符合itu規定的dwdm波長標準的基於線性啁啾moir光纖光柵的多通道色散補償器件。The optimization theory, optimum dispersion value, dispersion direction and the factors affecting on the imaging quality of planar image in wavelength multiplexing optical fiber image transmission system was deeply and th eoretically analyzed as the emphases in this article, and at the same time through the development of true optical fiber image transmission system ( optical fiber periscope ), the studying of making the image quality optimization of optical fiber image transmission system being useable and been used in engineering was completed
其中，重點對波分復用光纖傳像系統二維圖像的像質優化機理、最佳色散量與最佳色散方向的選擇，以及影響系統成像效果的各種主要因素進行了深入的理論分析；並結合實際光纖望遠系統? ?光纖潛望鏡的研製，完成了光纖傳像系統像質優化的實用化、工程化實現研究。And through the analysis of group differences reflected, on the social network, by the work force in different groups with different professional role in the present rural area, this research gives the prophecy of the evolving tendency of the social supporting network of the work force in the rural area in china. the thesis is divided into four parts : the first part expatiates the focus of attention, purpose, significance, innovation, feasibility, research idea and research methodology of the paper. the second part, through the five aspects of the scale of the social supporting network, relation constitution, compactness degree, convergence and diversity, describes and analyses the general character of the social supporting network of the work force of the rural area, and roots out that the social supporting network of work force in rural area in china is in the process of slow and gradual transform
全文共分四大部分：第一部分，闡述本研究的出發點、目的、意義、創新性、可行性、研究思路以及研究方法；第二部分，從社會支持網的規模、關系構成、緊密程度、趨同性、異質性等五個方面，描述和分析了農村勞動人口社會支持網的一般特徵，發現當前我國農村勞動人口社會支持網，正處于較緩慢的漸進的變革過程中，傳統農民的社會支持網已經開始呈現出一定的多樣性和豐富性的特點；第三部分，通過控制職業角色分化因素，對不同職業角色群體勞動人口的社會支持網進行差異性分析，發現較之農業勞動者群體而言，工商業勞動者群體的社會支持網更為復雜與多樣，其社會效用也更大；第四部分，在概括本文研究結論的基礎上，預測農村勞動人口社會支持網的發展趨勢，明確現代社會網的創新方向。The thesis will directly help to further developing the close looped color control system of modern printers. the principle of transforming color spaces and color separation greatly contributes to the deep research of color reproduction in theory and the software developed has some applied value in printing quality control and image processing
本課題的研究對進一步開發現代印刷機的閉環色彩控制有直接的指導作用：課題中提出的色空間轉換及分色原理對深入研究色彩復制理論有重要的理論價值；開發出的軟體在印刷質量檢測和控制以及圖像處理中有一定的應用價值。Polarization dispersion analysis for etched diffraction grating demultiplexer
刻蝕衍射光柵解復用器的偏振色散分析The amplitude fluctuation and according system performance degradation induced by xpm is also studied through numerical simulation. the timing jitter caused by xpm can also have great impact on system performance. by employing lagrangian variational method and statistical method, the timing jitter caused by xpm in strong dispersion managed rz systems is studied in chapter 3
通過模擬也研究了波分復用系統中由於交叉相位調制效應引起的幅度抖動從而導致系統性能的惡化；交叉相位調制引起的時間抖動對系統性能也有較大影響，利用拉格朗日變分方法和統計分析的方法，第三章討論了強色散管理歸零碼系統中交叉相位調制引起的時間抖動。Hi accordance with the physical principle of dispersion generation, many kinds of technologies of dispersion compensation have been researched and expounded. for instance, dispersion compensation fiber technology, pre - chirpped technology, dispersion supported transmission technology, chirpped fiber grating technology, and so on. but the study of dispersion compensation technology in which the dispersion of the optical signal in every channel in the wdm system is compensated respectively is reported rarely
針對色散的物理機理，人們研究並提出了各種色散補償技術，如色散補償光纖法、預啁啾法、色散支持傳輸法和啁啾光纖光柵法等，而對波分復用系統中各分波光信號分別進行有針對性的色散補償的研究報導還很少。3 ) the new types of photonic devices based on sampled grating : multiple wavelength laser, wavelength multiplexer / demultiplexer, reconfigurable optical add / drop multiplexer, optical fiber sensor, and multiple channels dispersion compensator
3 ）取樣光柵構成的新型光子學器件：多波長激光器、波分復用解復用器、重構型光分插復用器、光纖傳感器及多通道色散補償器在光纖通信中的應用前景。In this paper, on the basis of increasingly mature fabrication technologies of planar integrated waveguide and the optical fiber grating, we make use of not only the ( de ) multiplexing and wavelength router characteristic of arrayed waveguide grating ( awg ), but also the dispersion peculiarity of uniform fiber bragg grating ( ufbg ). then a kind of dispersion compensator, which can compensate the dispersion of the optic signal in every channel in the wdm system respectively, is devised. the method makes the compensation efficiency maximum theoretically
本文結合近幾年來日益成熟起來的平面集成波導製作工藝和光纖光柵製作技術，利用陣列波導光柵（ awg ）的復用特性和波長路由選擇特性與均勻光纖光柵（ ufbg ）的色散特性，提出了一種能對wdm系統中各分波光信號分別進行有針對性色散補償的補償器件，該器件使wdm系統中各分波光信號所得到的色散補償在理論上達到很高效率。In 1996, by using wdm technique, te local fiber network, which belonging to jinzhong region post and telecommunicatio of sanxi prvince, have been upgraded. with the upgraded system, the feasbility, techinical project reaization and system running, which are related to both the digital telephone signal transmssion and high quality television signal transmission in an uniform fiber, have been demonstrated
1996年完成山西晉中地區在光纖本地網上採用光波分復用（ wdm ）技術，實現同纖傳輸數字電話業務和高質量彩色電視信號的技術方案論證實施和開通。Influence of optical fiber dispersion on the wdm systems
光纖色散對波分復用系統的影響So how to settle the problem, in which dispersion is accumulated in wdm system, becomes a focus of study
因此，如何解決波分復用系統中色散積累問題就成了光通信研究的一個焦點。Method to collect respectively 180 unrelated males " venous blood 500ul, who lived in shanxi province, 120 unrelated mongolians " venous blood 500ul, who lived in the inner mongolia autonomous region, and the blood is anticoagulant with edta, then to extract dna by using the method of phenol - chloroform after ingested by proteinase k at 56 and amplify the dys413 site by using pcr
方法採集180例山西漢族和120例內蒙古蒙古族男性無關個體靜脈血各500ul ， edta抗凝，用tkml液反復洗滌至無色，加入2蛋白酶k緩沖液180ul ，蛋白酶k （ 20mg ml ） 20ul ，在56消化至液體清亮為止，用酚-氯仿法抽提dna ， pcr擴增dys413位點， 6非變性聚丙烯酰胺凝膠電泳， 1硝酸銀染色分型。In view of the above mentioned problem, the author adopts information technology such as image processing and pattern recognition to research into the method of automatic analysis and classification. in accordance with the difficulty in medical image analysis ( for example, the background of microimage of section is complicated and is difficult to be segmented. ), the paper puts forward two kinds of segmentation methods based on standardized colorful space and rgb and hsv colorful model
本文針對上述問題，用計算機圖像處理及模式識別等信息技術對顯微細胞圖像的自動分析和分類的方法進行了研究，並針對醫學圖像分析中的難點（例如，顯微切片圖像背景復雜，分割困難） ，提出了基於歸一化彩色空間和rgb ， hsv彩色模型的兩類分割方法：利用模式識別技術中關于特徵向量空間聚類的方法實施真彩色分割。Because of enabling to provide high - rate and high - quality wireless and mobile communication service, orthogonal frequency division multiplexing ( ofdm ) system is becoming a very hot research topic recently, and it is especially one of the technical difficulties to estimate and equalize the time - varying ( tv ) dispersive channels
在移動無線通信中，由於能提供高速率和高質量的通信服務，正交頻分復用（ ofdm ）技術成為當前國際上的研究熱點，而時變色散通道的估計和均衡問題是其中的技術難點之一。4. by using the expression for computing the output pulse ' s rms time width in an optical fiber link with up to fourth - order dispersion ( fod ), we present an expression of maximum fiber - link length, at which the output pulses can return to its original rms time width, in an optical fiber link with up to fourth - order dispersion
利用包含四階色散的輸出均方根脈寬的表達式，獲得了線性超高速光時分復用系統在源啁啾和殘餘二階色散的作用下的最佳傳輸參量。在該最佳參量下，可獲得均方根脈寬恢復初始值的最大傳輸距離。By introducing the principle of high - speed optical time division multiplexing system, we present the characteristics of higher - order dispersion compensation in ultra high - speed otdm system, and derive optimum transmission parameters under the effects of source chirping and residual second - order dispersion, which would be helpful to provide some theoretical suggestion for high - bit - rate optical transmission system
本文從介紹高速光時分復用系統的原理入手，深入地研究了超高速光時分復用系統中色散補償的特性，並在此基礎上得到了線性系統在源啁啾和殘餘二階色散的作用下的最佳傳輸參量。分享友人