通信密度 的英文怎麼說

中文拼音 [tōngxìnmìdù]
通信密度 英文
communications density
  • 通 : 通量詞（用於動作）
  • 密 : Ⅰ名詞1 （秘密） secret 2 [紡織] （密度） density 3 （姓氏） a surname Ⅱ形容詞1 （距離近; 空隙小）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 通信 : communication; communicate by letter; correspond
  1. The cumulation of tdfcsd in a certain period eliminates the remainder noise more, and the ability of detecting signal ' s frequency is improved

    通過對某段時間得到的功率譜密度累積，進一步改善snr ，提高信號頻率的檢測能力。
  2. At last this module is synthesized using 6s06dpdm technology library. 3, the algorithm used in key module to the performance of data security is thoroughly analyzed. considering both performance of enciphering and degree of complexity of realization, steam cipher algorithm is used

    3 、對數據通信安全性起決定作用的加密模塊所採用的加密演算法進行了深入的分析，綜合加密性能和實現的復雜度的考慮，採用了流密碼的加密演算法。
  3. The high - power semiconductor quantum well ( qw ) laser is a kind of luminescence device with superior performance, it has longe - lived, low threshold current density, high efficiency, high luminosity and excellent monochromatic, coherence, directionality, etc. the high - power semiconductor laser is widely applied to the fields, such as military, industrial machining, communication, information processing, medical treatment, etc. the material ' s epitaxy is the foundation of the whole laser ' s fabricating, and it has important influence on the optics and electricity performance about the laser

    大功率半導體量子阱激光器是一種性能優越的發光器件，具有壽命長、閾值電流密度低、效率高、亮度高以及良好的單色性、相干性、方向性等特點，廣泛應用於軍事、工業加工、通信及信息處理、醫療保健等領域。材料的外延生長是整個激光器器件製作的基礎，對器件的光學和電學性能有著重要的影響，生長不出優質的材料體系，獲得高性能的器件就無從談起，因此，材料的外延生長便成為了整個半導體激光器製作過程之中的重中之重。
  4. This dissertation proves that a single m - partite entangled mixed state in the system whose dimension of each subsystem is two cannot be purified to an m - partite entangled pure state. in general, a single m - partite entangled mixed state whose density matrix has higher rank cannot be purified to an m - partite entangled pure state. for a class of entangled mixed states, its fidelity cannot be increased under locc

    論證了在局域操作和經典通信下，單個多體糾纏混合態（每個子系統的維數都為2 ）不可能被純化；密度矩陣有著較高秩的混合態也不可能被純化；給出了一類多體糾纏混合態，在局域操作和經典通信下，對某一糾纏純態的忠實度不能增加。
  5. Another advantage, contrast to using convolutional codes or turbo codes, is its low complexity while maintain high ber performance because the check equations are used to terminate the both iterations. we develop the theoretical error free feedback bound for bpcm - id and predict the threshold for decder convergence using the extrinsic information ransfer chart ( exit )

    利用非正則ldpc具有不同度的信息節點概率密度演化的差異，對高階星座中具有較高級別的子通道提供額外的保護，可使迭代反饋判決時，星座子集擁有最大的無錯反饋歐氏距離調和均值，從而改善系統的迭代收斂特性。
  6. Three - dimensional high - density space / time soundings serve as the main body of data consisting of 3 - hr interval doppler probings, 10 - 30 min rainfall intensity, surface raindrop sizes sampling and gps - guided flight cloud physics detections with output taken at 2 - sec and 200 - m intervals. and specific systems associated therewith are developed for multiple - way communication and data collection and storage, a platform for analysis, retrieval softwares for dominant items and multi - scale cloud models - all constitute a system of techniques for meso to microscale observations and analysis. 2 ) atmospheric water resource and macroscopic rainfall properties in dry periods of spring and autumn of the target region

    以加密觀測的多普勒雷達、 3小時探空、 10 30分鐘雨強、地面雨滴譜等間隔取樣及在gps引導下的飛機雲物理探測等獲取的三維高時空密度的綜合探測為主體；配合專項設計開發的多路通訊採集存貯系統、多類信息的分析處理平臺、主要觀測項目的分析反演軟體，結合多尺度雲系模式，綜合構成層狀雲系中微尺度探測和分析處理技術方法。
  7. In this paper, the marine route survey factors, such as water depth, bottom slope, soil shearing strength, tidal current and thunderstorm and their roles in the submarine fibre - optic cable engineering are introduced, and their roles and necessities in the cable construction are also appraised, which will make the combination of marine route survey with construction demand closer and the marine route survey be aimed at the cable engineering practice

    摘要介紹了水深、海底坡度、土壤剪切張度以及潮流、雷暴等海洋路由各勘測要素及其在海底光纜通信施工中的作用，並對它們在施工中的作用及其必要性進行了評價，從而使海洋路由勘測與施工的需要結合得更緊密，更具有針對性。
  8. Uestc is in charge of the tdd downlink that bases on fpga. low density parity - check ( ldpc ) codes were first discovered by gallager in the early 1960s and recently have been rediscovered and generalized

    低密度奇偶校驗碼（ ldpc ）碼是由gallager在1962年首先提出的一種糾錯碼，在沉寂了多年之後，最近又重新成為通信技術研究的熱點。
  9. Low density parity - check ( ldpc ) codes were first discovered by gallager in the early 1960s and recently have been rediscovered and generalized. this class of codes decoded with soft - in soft - out ( siso ) iterative decoding performs amazingly well

    低密度奇偶校驗碼（ ldpc ）碼是由gallager在1962年首先提出的一種糾錯碼，在沉寂了多年之後，最近又重新成為通信技術研究的熱點。
  10. These light sources have promising applications and potential market demands for the high - density storage of opto - information, high - speed laser print, high - brightness and dynamic display in all colors, solid light sources, signal detectors and communication

    這類光源在高密度光信息存儲、高速激光列印、全色動態高亮度光顯示、固體照明光源、高亮度信號探測、通訊等方面有著廣闊的應用前景和巨大的市場潛力。
  11. ( 1 ) the posterior distribution of the coefficient matrix, the precision matrix and covariance matrix, and their bayesian estimation under the matrix normal - wishart conjugate prior distribution. ( 2 ) the deduction of the predictive distribution, proved to be matrix t distribution. ( 3 ) the designs of bayesian multivariate mean value control charts in terms of the relationship between the multivariate wishart distribution and x2 distribution, the bayesian process capability index and its confidence lower limi

    通過多方程模型系統的統計結構，證明了矩陣正態? wishart先驗分佈是模型參數（ ， ）的共軛先驗分佈，研究了該先驗分佈下模型系數矩陣、精度陣和協方差陣的后驗分佈及其貝葉斯估計，對模型預報密度函數進行了嚴格的數學推導，並將其應用於多元質量控制領域，構造了貝葉斯均值向量聯合控制圖；結合wishart分佈與x ~ 2分佈之間的關系，設計與推斷了貝葉斯多指標過程能力指數及其貝葉斯置信下限。
  12. First, based on the analysis of the design method of two - valued shift counter, we use the multivaled circuit ' s property of high information density to put forward the design method of three - valued shift counter. by using this method module - n three - valued shift counter can be designed. and by selecting the best design method, the simplest circuit of control logic can be made

    首先，在分析二值的移位計數器的設計方法的基礎上，利用多值電路的高信息密度，提出了三值移位計數器的設計，運用該方法可以設計任意狀態的三值移位計數器，並且通過選擇最佳設計方案使控制邏輯電路最簡。
  13. On the other hand, china post has faced the realities of the new economic forces of deregulation, globalization, liberalisation and, to a lesser extent, privatisation. the environment in which postal services operate has changed dramatically in recent years and all indications are that the pace of this evolution will continue to accelerate well into the future

    眾所周知，中國疆土遼闊，地形復雜，人口分布密度極不平衡，中國郵政所承擔的包括邊遠和邊疆地區在內的公民函件和包裹、黨政機關機要通信、黨報黨刊、義務兵郵件、盲人讀物等普遍服務給郵政帶來了巨大虧損。
  14. This theoretic model employs the basic idea of correlation measurement, achieve the density wave speed by the correlation of the signals of upper and lower sensors, and get the total flow rate and water cut through the theoretic relationship of density wave speed and total flow rate as well as holdup with the help of drift flux model so as to accomplish the oil / water two - phase flow measurement at last, using the limited available experiment data, the theoretic model has been simplified into an applicable linear alternative which is suitable to homogeneous oil / water two - phase flow measurement to accomplish the oil / water two - phase flow measurement using the density wave phenomena is of highly theoretically valuable for density wave theory research as well as oilavater two - phase flow measurement research. to develop new type oil / water two - phase flow instrumentation based on this theoretic measurement method will be very applicable and promising

    在此基礎上，針對穩態密度波理論提出了基於密度波理論的油水兩相流測量理論模型，該模型以密度波傳播理論作為基礎，通過上下游傳感器信號相關獲得密度波傳播速度，利用密度波傳播速度與總流量以及持相率的理論關系結合漂移模型來求解總流量和含相率，實現油水兩相流的測量，在理論分析的基礎上，在實驗資料有限的條件下，對基於密度波理論的油水兩相流測量理論模型作了極限的簡化，提出了本文油水兩相流測量理論方法應用在測量均勻油水兩相流中的實用線性模型。
  15. Based on intensive research and investigation, the dissertation tries to figure out the major ventures for the major constructions and its subdivision projects of a large - scale project. among these interfering factors, there are some artificial risks, such as the credit risks, closely related with credit degree and behavior of party, from which can be prevented by restraining party ' s behavioral project

    在這些干擾因素中，有一些人為風險，例如信用風險（業主是否能按期支付工程款、承包商是否能依照合同保質如期完工）是和當事人的意志、行為、信用度密切相關的，它可以通過制約當事人行為的工程擔保制度來防範。
  16. Data collecting technology of meso - and small - scale automatic weather station network based on mobile communication network

    基於移動通信網路的中小尺度加密自動氣象站網資料收集技術
  17. By theory and practice simulation, the several types of constant envelope modulation techniques are analyzed and compared, including theirs modulation principle, phase path, the modulated wave envelope, power spectrums, error bit rate and the influence of its power spectrums of the band - limited and non - linear, etc. especially we have researched the ijf - oqpsk modulation technique, and the performance of its inter - symbol interference and time jitter free, and its strongly resisting of spectral spreading

    結合理論和實驗模擬結果，分析討論了衛星通信中的各種恆包絡調制技術，對它們的調制原理，相位路徑，已調波包絡，功率譜密度，誤碼性能，以及帶限非線性通道對其功率譜的影響等方面都作了研究和比較。特別研究了ijf ? oqpsk在消除碼間干擾和定時抖動方面的性能及其優良的旁瓣特性和抑制頻譜擴展特性。
  18. In recent years, short - wavelength solid - state lasers in the ultraviolet to green spectral range have attracted much attention due to a wide range of applications including high - density optical data storage, all color displays, undersea communications, biomedicine and infrared sensors

    作為光電子產業的核心器件之一，緊湊型全固體短波長激光器在高密度光學存儲、全色激光顯示、海底通信、生物醫學和光譜學等領域具有廣闊的應用前景。
  19. In this thesis, we have mainly studied the characteristics of chf3, c6h6 and cf4 electron cyclotron resonance ( ecr ) plasma using langmuir probe and optical emission spectroscopy ( oes ). the relative concentration of different radicals in chf3 plasma and the effect of chf3 / c6h6 ratio on bond configuration of a - c : f films were discussed. it was showed that h, f, c2 were the main radicals among radicals of h, f, c2, ch and f2 in chf3 ecr plasma

    重點研究了chf _ 3 、 cf _ 4和chf _ 3 c _ 6h _ 6放電等離子體中基團的分佈；分析了不同基團的相對密度隨宏觀放電條件（微波輸入功率、放電氣壓、源氣體流量比）的變化規律；探討了等離子體中各種基團的生成途徑；在不同源氣體流量比的條件下沉積了a - c ： f薄膜並通過傅立葉變化紅外吸收光譜（ ftir ）的測量得到了薄膜中鍵結構的信息；分析了a - c ： f薄膜的沉積速率及其鍵結構與等離子體空間基團分佈狀態之間的關聯。
  20. Blue laser is very valuable for military, communication, high - density optical storage, information, colorful display of laser % colorful printing and biochemistry. for example, blue laser of 475nm can be used for seabed research and communication of submarine

    藍色激光器在軍事、通訊、信息業、彩色列印、高密度光存儲、激光顯示及生物化學方面有著重要的應用價值，比如說海水的透射窗口落在藍綠色激光范圍內，俗稱「海軍藍」的475nm藍色激光器可成為海地探測和對潛通信的有效手段。
分享友人
分享到 Line

分享到臉書