外指數通信 的英文怎麼說

中文拼音 [wàizhǐshǔtōngxìn]
外指數通信 英文
esi communications （externally specifi）
  • 外 : Ⅰ名詞1 （外面） outside; external side 2 （外國） foreign country 3 （以外） besides; beyond; in ...
  • 指 : 指構詞成分。
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 通 : 通量詞（用於動作）
  • 指數 : 1. [經] （比數） index number; index 2. [數學] exponent
  • 通信 : communication; communicate by letter; correspond
  1. Besides tt & c transponder, the power support for pico - satellite also covers cmos camera, data processing unit and energy subsystem, by connecting and charactization which, full course from modulation and demodulation of instruction data to feedback of image data, wireless long - range transmission and the feedback of sidetone signal could be achieved

    4 、整個衛星的電系統除了通信一體機外，還包括cmos相機和數據處理單元以及能源分系統。具備了這幾部分，對系統聯試，實現了從指令信號的調制解調和圖像信號的返回的全過程，並且可通過遠距離的無線傳輸。
  2. ( c ) propose the scheme to implementing the coder and deoder of optical time - spreading / frequency - hopping, by assigning two orthogonal codes for one user and using these two codes to encoding 1 and 0 respectively, differential detection can be adopted. not only improves system performances in ber, but also resists the interference such as mai, and does n ' t need any control devices to evaluate the optimum decisive threshold

    通過給每個用戶指定互相關為0的兩個地址碼分別發送1和0信號以及在接收端採用差分檢測技術，避免了ook （開關鍵控）光通信系統中0不發送光脈沖和ook常規檢測方式下最佳判決門限必須根椐用戶數等外界環境而改變，從而提高了系統性能和降低了系統的復雜度。
  3. In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology

    為使二維振動傳感器在兩主軸方向的靈敏度大致相同，敏感元件採用高度對稱的四梁結構，其中每個軸向上均採用帶折疊梁的雙側叉指電容結構，採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件，具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算，並利用有限元法進行了模擬分析，根據模擬結果得出了優化參數;在確定敏感結構的基礎上，研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析，利用差動測量技術得到由振動引起的微小電容變化量，經c - v介面電路進行相位調制處理，然後通過解調輸出與加速度成正比的電壓信號。
  4. The dark - skinned, black - haired navajo code talker, huddled over a portable radio or field phone in a regimental, divisional or corps command post, translating a message into navajo as he reads it to his counterpart on the receiving end miles away, has been a familiar sight in the pacific battle zone

    那些黃皮膚、黑頭發的納瓦霍族通信兵手提便攜式電臺和步話機隨同團、師、軍級指揮部行動，將指揮部的命令對照著他手頭的「納瓦霍字典」翻譯成納瓦霍語並傳遞到數英里以外的接收方；這已經成為可太平洋戰場上司空見慣的場景。
  5. The software adopts three kind of control mode to start up the data acquisition system, it ensures reliability of the acquisition system. the control system communicates with the shipborne support system adopting broadcast when down and timing when up, and requires return for the remote instructions, so it ensures the communications of the five bouys with the control and acoustic emission vessel. this software is based on assemble language of mcs51, it is held in the eprom in mcu

    控制和通信軟體採用設定採集時間表、外推採集與啟動採集三種方式控制採集系統，可靠地保證了遠程、無人值守浮標在長時間、連續工作情況下數據採集的很高的可靠性；控制和通信軟體採用下行廣播、上行時分的工作哈爾濱工程大學碩士學位論文方式實現各浮標與船載分系統間的通信，且無線電遙控指令執行反饋，可靠地保證了浮標與船載分系統間的通信。
  6. A real physical system may involve many variables but only one or more of them can be detected by modem data collecting equipment in recent years, the technique of phase space reconstruction is frequently applied to analyse and process time series. its significance is that the topological characteristics such as fractal dimension can be obtained, on the basis of investigation and research about the technique of phase space reconstruction up - to - now, this paper is also devoted to develop a new method for the prombles of detecting deterministic chaos of time series obtained from experimental data

    一個實際的系統可能會涉及多個相變量，但在實際問題中只能得到部分相變量的信息，近年來人們發展了相空間重構方法，能夠通過單變量信息重構吸引子，這種方法在時間序列分析和處理中得到廣泛應用，其意義在於能在拓撲等價意義下恢復吸引子的拓撲特徵，本文第三章在國內外有關時間序列的相空間重構研究狀況基礎上，致力於發展對時間序列進行確定性檢驗的新方法，即研究時間序列的分佈規律和赫斯特指數，並在相空間重構的基礎上，提取吸引子的特徵指數。
  7. Firstly, having analyzed the present research situation on agricultural climate resources by gis at home and abroad, this thesis illustrates the importance of establishing agricultural climate resources information system. secondly, basing on developmental and integrative environment of arc view gis software, as well as developmental languages ( avenue and vb ), we design agricultural climate resources information system in fujian province with friendly and practical graphic user interface, together with comparatively perfect functions. finally, supported by fjacris, based on fujian province fundamental geographic data and agricultural climate resources database on 71 weather stations, relied on mathematic analysis techniques ( such as multiple statistical analysis, fuzzy mathematics etc ), a group of models are established to reckon the agricultural climate resources on small grids 41 indexes of agricultural climate resources are reckoned to the small grids that are 0. 004 longitude multiplied by 0. 004 latitude

    本文首先通過對國內外運用gis進行農業氣候資源研究的現狀的分析，闡明了建立農業氣候資源信息系統的重要意義：接著以arcviewgis為軟體開發集成環境，並以avenue和vb為開發語言，進行了福建省農業氣候資源信息系統的設計和開發，設計出友好、實用的用戶界面，開發出較為完善的系統功能；最後在該系統的支持下，以福建省基礎地理數據和71個氣象臺站的農業氣候資源數據庫為數據源，應用多元統計、模糊數學等數學分析技術，構建了農業氣候資源的小網格推算模型，將福建省農業氣候資源的41個有關指標推算至0 . 004經度0 . 004緯度的地表網格單元上，全面地揭示了全省農業氣候資源的空間分佈規律，並在此基礎上完成了比較細致、精確和可靠的農業氣候系統功能的模糊綜合評價，以及綜合農業氣候區劃和專題農業氣候區劃。
  8. Due to the unique, stable and live physiological properties of the iris and non - invasive to users, most stable and reliable for identification in practical applications of iris - based system, iris recognition is receiving extensive attention and becoming an active topic in biometrics. as an application - oriented research project, iris recognition integrates mathematic, computer science, optics, electronics and physiology etc. based on wavelet transform, aimed to improve the recognition performance, centered at wavelet - based iris feature representation and pattern classification, we review and explore the iris sequence image quality assessment, iris image pre - processing, iris recognition performance evaluation and several other linked topics. we mainly investigate on the principles and application methodology of wavelet transform for iris feature representation and iris pattern classification methods

    以小波變換技術為基礎，結合圖像處理和模式識別方法，設計並開發了虹膜圖像採集裝置，建立了虹膜識別演算法測試實驗平臺;重點研究了虹膜識別中的小波變換的應用基礎理論與關鍵實現技術;提出了基於小波局部模極大值的虹膜特徵表示及其多重匹配識別、基於小波多尺度信息的一維和二維虹膜紋理特徵量化表示、基於小波過零點技術的虹膜特徵表示及其規范化的部分hausdorff距離匹配識別，這三類方法能夠有效地提取虹膜特徵;基於自建的演算法測試平臺，對上述三類方法和其他三種國內外比較有影響的基於小波變換的虹膜識別方法進行了定量的性能比較和評價，通過實驗數據分析得到了有意義的結論;最後指出了小波變換技術在虹膜識別領域的研究重點與發展方向。
  9. The general requirement of communication system and the application potential in secure communication are expatiated. the chaotic secure communication methods home and abroad are also summarized, including chaos spread spectrum communication, chaos key - shifting, chaos parameter modulation, chaos masking, chaos cdma. the exiting problems and development direction are also pointed out respectively

    介紹了混沌學的發展過程和意義，闡述了通信系統的一般要求和混沌在保密通信中的應用潛力，綜述了國內外現有的混沌保密通信方法，其中包括：混沌擴頻通信，混沌鍵控，混沌參數調制，混沌掩蓋，混沌數字碼分多址等五大類，指出了各自存在的問題和發展方向。
  10. After analyzing the existing ambiguity resolution methods the dissertation investigates the baseline rotation method based on the antenna - swap idea, and develops the fixed axis rotation maximum - minimum method ? farmm and the equivalent rotation maximum - minimum method ? ermm applicable for static basement and moving vehicle respectively. the former lowers the demands on rotation device while the latter improves the flexibility of antennae installation. meanwhile the dissertation also brings forward an ambiguity function search method which needs only one single epoch data with the outer aided information, and investigates the accuracy requirements for the assistant pointing information

    其次，通過與gps等多星系統定向關鍵技術的對比分析，指出雙星定向模糊度確定的難度;在分析現有模糊度求解方法的基礎之上，研究了基於交換天線思想的轉動基線模糊度確定方法，並提出了適合於靜基座的定軸轉動極大/極小值farmm法，以及適合於地面運動載體的等效轉動極大/極小值ermm法，前者降低了對轉動機構的要求，後者則提高了天線安裝的靈活性;同時，提出了一種藉助外部輔助信息的模糊度函數搜索法實現單歷元雙星定向，並分析了對外部輔助單軸姿態信息的精度要求。
  11. On the basis of the theory and the experiment, the paper has synthetically analyzed the anti - interference characteristics of the hardware method ( differential balance ) and software method ( digital filter ). the paper has presented that these two methods have some disadvantages respectively. based on this fact, a new method has been presented. hardware method can be use to restrain periodical interference, and software method can be use to discriminate pulse polarity

    從理論和試驗兩方面，綜合分析了硬體措施（差動平衡法）和軟體措施（數字濾波法）抑制干擾（包括周期性和脈沖性干擾）的方法和特點，指出了兩種方法各自存在的缺點，在此基礎上提出了用硬體方法抗周期性干擾，用軟體抗脈沖性干擾的新方法，並通過試驗證明，該方法可以抑制周期性干擾，有效地鑒別出外部干擾信號和內部局部放電信號。
  12. The paper makes an overall analysis on present exterior environment and telecom industrial status on the basis of full and accurate datum, and presents the status of 3g technology, the competition relations between 3g and other wireless technologies, overseas 3g service development and the successful experience in korea and japan. then this paper points out that enormous profits and great opportunity still exist in china ' s mobile telecommunication market, and 3g has become more mature and been applied commercially in a large scale, the conditions of 3g development in china has also become mature

    本文通過翔實的數據，全面分析了中國電信所處的外部環境和電信行業狀況，介紹了3g技術的發展現狀，探討3g技術與其他無線技術的競爭關系;分析了全球3g業務的發展狀況，以及3g業務運營比較成功的韓國和日本運營商的成功經驗。指出中國移動通信市場仍然存在巨大的獲利空間和投資機會;第三代移動通信（ 3g ）技術己基本成熟，在全球獲得了大規模商用;中國發展3g業務的條件也基本成熟。
  13. This essay firstly systematically introduces the theories and key technologies of vpn with the detailed presentation of the functions of safety manage central - - - - the automatic production and distribution of passwords, remote - controlled destroy of passive and active passwords, loading special data in air and special tracing of cell phones that are out of control. besides, the researchers has analyzed the contents and findings of similar researches both domestics and overseas with the emphases on the in - depth research of safety communication gateway in order to confirm a system model and carry out the macro - design. after that is the detailed introduction of the design realization of special information transportation

    本文首先系統地介紹了gsm移動通信保密專網的原理知識及關鍵技術，詳細介紹了安全管理中心的功能- -密鑰自動產生和分配、被動式和主動式密鑰遙控銷毀、專用數據空中加載、以及失控專用手機追蹤等，並且對國內外同類研究的內容和成果進行分析;重點對安全通信網關進行了深入研究，確定了一種系統模型並進行了總體設計，然後對其中專用信息傳輸的設計實現進行重點介紹;本文還對安全管理中心的短消息安全通信網關與專用手機進行性能測試，測試結果表明該系統符合課題的各項技術指標，實現了安全通信網關的各項功能需求;最後，總結課題工作，對下一步系統進行完善和發展的內容提出了具體建議。
  14. Cefr equipment reliability database is used mostly in following ways : providing equipment reliability parameters through equipment operation log and maintenance records analysis for cefr ' s pra and on - line risk monitor system. providing fault causes of related equipment through the equipment fault records and reason analysis in order to control spare parts macroscopically and adopt necessary improvement. providing curves of equipment fault characteristic through historical records of equipment fault for preventive maintenance

    Erd將是cefr的重要信息系統，它不僅可以提供設備原始特性參數，而且可以提供設備失效趨勢分析曲線， erd的主要用途如下： ?通過對設備運行記錄和維修記錄的分析給出設備可靠性參數，用於cefr的pra分析及風險管理系統； ?通過對設備失效記錄及原因分析給出相關設備失效的根本原因，以便從宏觀上控制備品備件或採取必要的改造； ?通過對設備失效歷史記錄的分析給出設備失效的特性曲線，提供預防性維修所需信息； ?另外erd在大修優化、 rcm 、定期試驗以及維修政策方面有重要的指導意義。
  15. For the reasonable planning and construction of the highway network in medium - sized cities, at first, the thesis has compared the condition of china with one of foreign in the construction of highway network and presented the existing problems. in the foundation of the theory and methods of the planning of highway network, a series of principle and methods has been advanced, such as the method linked the method of gross control into 4 - step - forecast method. the thesis has discussed the data the od survey needed and the theory and methods of traffic demand forecast

    本論文從中小城市公路網建設合理規劃的角度出發，首先將中國的公路網建設情況與國外進行對比，指出了我國目前在公路網規劃中所存在的問題，隨后在研究公路網規劃的理論與方法的基礎上，提出了一系列的原則與方法，如總量控制與四階段法相結合的方法等，探討了進行交通調查所需要的數據信息、需求預測的理論與方法以及相關的影響因素。
  16. Short - wave communication has been applied to the field of government, military affairs, diplomacy, weather, business and so on for many years. it used for transmittiing audio, words, video, data and other information

    短波通信多年來被廣泛應用於政府，軍事，外交，氣象，商業等領域，用以傳送語音，文字，圖像，數據等信息，尤其在軍事部門，它始終是軍事指揮的重要手段之一。
  17. This paper employed relevant theories from information management science and systematic science as the guidance and adopted appropriate methods such as systematic analysis, information analysis and management analysis in conducting the research. based on extensive collection of data and information and selected case survey, and through historical and international comparisons, the model selection and management strategy were defined for the construction of agricultural sti database

    在研究方法上，本文以信息管理科學與系統科學的相關理論為指導，在廣泛收集資料和重點實例調查的基礎上，運用系統分析、信息分析、管理分析的相應方法，通過歷史的比較分析和國內外的比較分析，通過案例分析，明確了我國農業科技信息數據庫建設的模式選擇和管理策略。
  18. Secondly, it can detect opened ports on the basis of results of the first port - scan, and get the information of service and version of these opened ports. thirdly, through many kinds of detecting ways, it can get the os - fingerprints of tcp / ip protocol stack of the destination computer, and guess the faraway operation system exactly. at last, taking cve ( common vulnerabilities and exposures ) as the standard, a more practical vulnerability database by combining the structures of two large - scale oversea vulnerability databases is designed

    設計開發的網路漏洞探測系統具有較強的綜合性能，能夠提供多種埠掃描技術，在第一次掃描結果的基礎上對開放的埠進行第二次探測，得到開放的埠的服務和版本信息，通過多種探測方法獲得目標主機的tcp / ip協議棧指紋信息、較準確的推測出遠程操作系統，並以cve （ commonvulnerabilitiesandexposures ）為標準，結合國外兩個大型漏洞數據庫的結構，設計了較實用的漏洞數據庫。
  19. Esi communications externally specifi

    外指數通信
  20. Pcba is a distributed algorithm which boasts no extra communication overhead. the merits of pcba are : significant reduction of rebroadcast redundancy, adaptivity, " selective rebroadcast " function and easy implementation

    首先，提出了基於優先權指數的競爭廣播演算法：採用分散式計算，不需增加額外通信負荷，既適合於純廣播應用，又可應用於路由協議。
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