選定通道 的英文怎麼說

中文拼音 [xuǎndìngtōngdào]
選定通道 英文
selected channels
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 通 : 通量詞（用於動作）
  • 道 : Ⅰ名詞（道路） road; way; route; path 2 （水流通過的途徑） channel; course 3 （方向; 方法; 道理） ...
  • 選定 : designate; selected
  • 通道 : thoroughfare; passageway; pass; enterclose; gallery; drong; tunnel; avenue; alure; way; row; key ...
  1. Communication is the key problem in distributed systems, in didsa, pipe is chosen as the intra - agents communication way and socket as niter - agents communication way

    通信是任何分散式系統都需要著重考慮的問題。 didsa系統選定管道（ pipe ）來作為agent內部通信方式， socket來作為agent間通信方式。
  2. Baoding city north downtown in municipal people government make selection to hand over the a brigade in the municipal with the south, wide railroad in city to the west, the northwest of the wreath postpones to the east of district, developments city ? that market covers 27 acre, a prosperous district, be apart from original flowers and birds the fish the insect the market the shortage a kilometer of, the transportation is convenient, having six hand over the route goes directly to here, exit the highway keeps the 107 country way with wide superhighway in city, near two in the last years, the square circle in that district sets up to have the small area of upscale residence in inside in some one after another inside two kilometers of scopes, living a high income family, intend to see the inside of protecting and settling north downtown of municipal the agriculture makes sight - seeing trip the park the item among them have the flower and grass plant, feeding the fish insect etc. profession park to act in cooperation mutually with it, can become to produce to place on sale a structure and form of dragon. owing to protects the traditional brand effect that settle the municipal history culture a city and create the country of taipei first boys school the excellent traveling the opportunity that city bring, that market sets up the empress not only can satisfy to baoding city the domestic demand in municipal, but also will still radiates city three municipals and perimeter region, become the perimeter region consumption center and commercial center

    保定市北市區人民政府選定在市交警支隊以南，京廣鐵路以西，環西北延以東的地段，建設一個高檔的花鳥魚蟲市場。該市場佔地27畝，地處市繁華地帶，距原花鳥魚蟲市場不足一公里，交通便利，有六條公交路線直達此處，出口處公路直通107國道和京廣高速公路，近兩年來，該地帶方圓兩公里范圍內相繼建起了一些中高檔住宅小區，生活著上萬戶高收入家庭，擬見中的保定市北市區農業觀光園項目其中有花草種植，飼養魚蟲等專業園與之相呼應，可形成產供銷一條的格局。鑒于保定市歷史文化名城的傳統品牌效應及創建中國優秀旅遊城市帶來的機遇，該市場建成后不但可以滿足保定市人民的需要，而且還將輻射京津石三市及周邊地區，成為周邊地區消費中心與集散地。
  3. This paper first begin with the connotation of virtual instrument technology, study and discuss the criterion and the working theory of usb deeply. on the principle of usb1. 1criterion, using usb interface chip usbn9604 and low consumption mirochip c8051f231, we designed the available interface of usb bus and its controlling software, turn the communicating function based usb bus between computer and testing device. second based on the developed interface of usb bus, using microchip pic16c62 and a mount of relays, we designed the multiswitching scanner and its controlling software to complete the funtion of accesses swithing in testing system. third calling the api function inside the windows using vb programming language, communicat with the impelling program of selected hid, achieve the function of testing instrument with usb interface, complete the development of upside software faced testing. at last, based on the deep studying of pcb testing method, used the developed multiswithing scanner and software faced testing, combinated with necessary testing instrument, we constructed the pcb testing system and analized the testing result simply

    論文首先從虛擬儀器的技術內涵出發，深入研究和討論了通用串列總線usb規范及工作原理，並依據usb1 . 1規范，採用usb介面晶元usbn9604和低功耗微處理器c8051f231設計開發了通用的usb總線介面及其控制固件，實現了通用計算機與測試設備之間基於usb總線的通信功能；其次，在所開發的usb總線介面的基礎上，使用微處理器pic16c62和多路繼電器開關，設計開發出實現測試系統中測試通道切換功能的多路通道掃描器及其控制固件；再次，採用vb語言編程，調用windows內部api函數，與選定hid類驅動程序進行通信，實現usb總線介面測試儀器功能，完成面向測試的上層軟體開發；最後，在深入研究印刷電路板測試方法的基礎上，利用已開發的多路通道掃描器和面向測試軟體，結合必要測試儀器組建印刷電路板測試系統，並對測試結果進行了簡要的誤差分析。
  4. A lot of data of elevation in different places of the shallow water of n antong were obtained by fish - exploring machine and gps determining and tide cor recting. an image which reflects landforms of nantong was obtained by selecting f rom the many noaa images on different channels and in different phases. based on the image, grey scales corresponding to different places were obtained. by using c la ssifying liner regression technique, liner regression equations were established between the elevation and grey scale, and the threshold values of grey scales of the different elevations were determined. according to the threshold values, the a reas of the tidal zone above different elevations of the shallow water of nanton g were estimated

    通過利用gps及漁探器實測，並進行潮位訂正，獲得南通淺海海域大量測點的高程資料；通過對多時相各通道noaa衛星照片進行篩選，挑選能反映淺海地貌的通道資料，從中讀取各測點相對應的灰度值，在此基礎上利用分級線性回歸，建立不同高程范圍內的高程、灰度線性回歸方程，確定不同高程的灰度閾值，從而測量出南通市淺海海域不同高程以上的潮間帶面積、分佈。
  5. In order to increase the output power, reliability and stabilization, microchannel heatsink which is one of active heatsinks is used to cool high power semiconductor diode laser arrays in the paper

    為了提高激光器的輸出功率、可靠性和穩定性，本論文選取有源熱沉? ?微通道熱沉來冷卻大功率半導體激光器列陣。
  6. The basic idea of this method is to produce particles from the posterior densities, and these weighted samples provide approximations to the densities. in this dissertation, sequential monte carlo method and its applications in communication are investigated. firstly, its basic idea, method and improved method are introduced, then induce the bound of particles, which determines the performance of the system, and the more particles are chosen, the higher computation is done, finally, a new detector based on new importance function is proposed, which deals with the joint channel estimation and detection in flat fading channels

    首先介紹了它的基本思想、基本方法、及當前研究現狀；在此基礎上推導出樣本數選擇的界，樣本數的選擇決定了系統的性能，但是若選的太多，計算復雜度也會隨之增大，因而給出這個界是十分有意義的；最後提出了一種基於新的重要函數的檢測器用來解決平坦衰落通道下的聯合通道估計和檢測問題，並通過模擬證明了我們提出的新檢測器的有效性。
  7. The future wireless mobile communication systems are expected to provide ubiquitous, high - quality, and high - rate mobile multimedia transmission. however, hostile multipath fading radio conditions give rise to serious inter - symbol interference ( isi ) ; even worse, wireless channel are often time varying, which makes the system more vulnerable and more difficult to track the channel state. orthogonal frequency dvision multiplexing ( ofdm ), which is inherently resistant against isi, has invoked a popular research interest in recent years, and has been a promising candidate technology of the physical layer for future weideband high - date - rate wireless communications. notwithstanding, ofdm is much more vulnerable to errors of both time and frequency synchronization and to that of channel estimation, and how to obtain correct timing and channel estimation efficiently is highly critical to ofdm systems. the dissertation will focus on both of the aspects of ofdm systems mentioned above

    但是無線環境的多徑特性造成通信系統中嚴重的符號間干擾，同時無線通道的時變性使得通道特性跟蹤復雜。而正交頻分復用技術（ orthogonalfrequencydivisionmultiplexing ， ofdm ）正是一種解決符號間干擾的有效傳輸手段，因此ofdm技術作為未來寬帶高速率無線通信的物理層候選技術在當前引起了一股研究熱潮。但ofdm系統對定時同步誤差和通道估計誤差非常敏感，如何在ofdm系統中準確快速地實現符號同步和通道估計是至關重要的，本論文將重點針對這兩個問題進行討論。
  8. Chapter two ascertains main technological factor of dong gou lock reconstructing, including forecast the cargo and volume through the lock to reason about representative type of vessel designed for through the lock and its operation organize. chapter three design the renovate engineering through ascertaining the main technological factor scale of the lock, dimension, designed water level and altitude, including design of structure of the lock, lock chamber and lock gate, and select the main technological factor and pattern of headstock gear. chapter four draws a comprehensive compare of the two design scheme of the renovate project with engineering project economy evaluation method, and makes out the recommended scheme, and furthermore, to calculate the economic evaluation index of the recommended scheme and makes the economic sensitivity analysis of the scheme and finally demonstrate economic feasibility of the scheme

    本論文共分四章：第一章主要介紹了原東溝船閘的地理位置和營運現狀，說明了船閘在航道建設和水資源綜合利用中的作用及東溝船閘改造的必要性；第二章東溝船閘改造的主要技術因素確定其中包括東溝船閘過閘貨種和貨運量發展的預測，並確定東溝船閘的設計代表船型及營運組織；第三章東溝船閘改造工程設計本章通過船閘改造工程主要技術參數：船閘規模、尺度、設計水位和高程等的確定，設計了二個船閘改造方案，包括鋼筋混凝土整體塢式閘首結構、閘室和閘門的設計，並選定了啟閉機的主要技術參數和型式；第四章採用了工程項目經濟評估方法對東溝船閘改造工程二個設計方案進行全面綜合比較后，確定了推薦方案。
  9. A large amount of experience data accumulated through long term operation is introduced. combined with the definition of relative requirements, the choosing and definition of operation index of high - frequency channels specially used for protection of hubei electric power network are discussed and elaborated through calculation and analysis such as input impedance and channel impedance of transmitter, sensitive voltage of received signal, redundancy of received signal, warning of channel redundancy and warning of channel faults etc

    引用了長期運行中積累的大量經驗數據，通過計算分析，結合有關規程規定，探討和闡述了湖北電網繼電保護專用高頻通道諸如收信機輸入阻抗及通道阻抗、收信靈敏電平、收信裕度、通道裕度告警、通道異常告警等運行指標的選取和確定。
  10. As the step of the color tv ( the second generation ) to the digital tv ( the third generation ) is larger and larger, the research of digital television terrestrial broadcasting ( dttb ) become more and more important in china, we are concentrating on the standard of dttb which is suit for our country after describing and analyzing the technical stipulation and speciality of dttb, this paper compares atsc 8 - vsb with dvb - t cofdm and isdb - t bst - ofdmo the emphasis of this article lies in the technical solution about transferring system, channel coding is important component of dttb, which can resist from the bad circumstances o because of lots of varieties and different performance, channel coding become one of the emphasis of the research work this paper analyzes and researches the theory and performance of the different channel coding particularly, points out an effective theoretic analysis method and computer demo of performance comparison a theoretical method for estimating the performance of concatenated codes is proposed in this paperc this is achieved by combining the performance of single level coding rayleigh fading channel and the character of channel modulation it may be useful to research and development of the future digital television terrestrial broadcasting standard of our country

    通道糾錯編碼是數字電視地面廣播傳輸系統的重要組成部分，是抵禦地面惡劣環境的有效手段。由於通道編碼的種類繁多，性能各異，因此是目前研究工作的重點之一。本文詳細分析和研究了幾種通道糾錯編碼的原理和性能，並針對外碼內碼級聯糾錯結合地面通道瑞利衰落提出了一種有效的理論分析方法和性能的計算機比較演示方案，總結了不同級聯方案的性能特點，對於我國目前的數字電視地面廣播標準的研究和通道級聯糾錯方案的確立及其參數選擇具有一定的參考價值。
  11. Under rayleigh fading channel, we also simulated and compared ber in siso 、 simo and mimo systems. secondly, based on careful study the ber and the channel capacity under white noise channel under mpsk modulation when the channel is rayleigh fading, we duduced the expressions of stbc ’ s ber and channel capacity under rice and nakagami fading. and also analysed the performances through numerical simulation using matlab to testify the exactitude of the dudeced expressions. finally, there exists an error floor of stbc through studying on its performance on time - selectiv fading channel. we analysed the reason and proposed two new decode combination scheme to eliminated the error floor and the performance of stbc on time - selective fading channel is improved. and also compared the two scheme ’ s complication and snr gain

    這些結果大部分是閉式結果，能比較準確地衡量空時塊碼的性能，並對不同衰落的性能做了相互比較，其結果對空時塊碼的實際應用具有一定的指導意義。實際的通道是時變的，分析了空時塊碼在時間選擇性衰落通道中產生誤差地板效應的主要原因是存在碼間干擾（ isi ） ，在此基礎上提出了兩種能消除誤差地板效應的譯碼合併方案，並對這兩種方案的復雜度和信噪比增益進行了比較。
  12. According to the study on the resolution of the equipment for coal ore dressing based on the transmission of bi - energy - rays for a long time, it was provided that the resolution could be improved by selecting the mathem atical model, discerning mode, and the width of high and low energy windows

    摘要通過較長時間的實驗研究，指出處理數據的數學模型，判斷結果的識別模式，採集信號通道窗孔的設定是設備儀表系統關繫到設備分選率的幾個主要方面，只要綜合考慮源強，儀器的溫度漂移特性，適當選擇數學模型、識別模式和窗口位置及寬度，可以大大增強判斷的準確性，提高分選率。
  13. When using electric heaters, ensure adequate indoor ventilation, and keep the heater away from the entrance, the corridor and combustibles. do not overload the electricity supply and avoid overheating, which may lead to fire or burn injuries

    若選用電暖爐，一定要確保室內空氣流通，電暖爐要遠離門口通道或易燃物品並要避免電力負荷過重及小心過熱，以免發生火警或灼傷等意外。
  14. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面： 1 、針對頻率選擇性衰落通道：結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法，與傳統方法相比，該方法計算量更小，收斂速度更快，性能更優，且對系統階次的過確定表現穩健，具有實際均衡應用價值； 2 、針對時間選擇性衰落通道：提出一種基於迫零均衡的時間選擇性通道均衡方法，演算法結構簡單； 3 、針對時變色散通道：利用瞬態均值曲線提取通道時變信息，對之ar建模，利用卡爾曼濾波器跟蹤時變通道抽頭變化，可以快速跟蹤通道變化；基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法，提出了新的單輸入多輸出色散時變通道均衡與識別演算法，同樣具有對通道階次過確定保持穩健的優點；結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法；研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題，給出一種時變系統處理模型。
  15. This essay in followed by the sales channels management system of south - east motors and will analyze and explain in the following four aspects : 1. several phrases and existing problem in choosing the sales mode by south - east motors. 2. to analyze several problems as follows : the choosing of sales channels members, the dividing of sales channels stages, the resolution of sales channels conflicts, the establishing of prices system, the construction of service system in the future. 3. to analyze the advantages and disadvantages the 4 popularly used sales modes such as buying - off system, sales system, assistant sales system and together with the actual condition of south - east motors sales channels management system, i make sure that assistant sales system will be the future sales channels management mode and development direction of south - east motors

    本文以東南汽車公司如何建立銷售渠道管理系統為主線，從四方面進行分析和闡述：東南汽車公司銷售模式選擇經歷的幾個階段及存在問題；對東南汽車公司在渠道成員選擇、渠道層次劃分，渠道沖突解決，價格體系的制訂、今後服務體系的建立等幾個方面進行分析，分析其存在的問題；從理論上分析目前廣泛採用的代理制、買斷制、經銷制、助銷制四種銷售模式的優缺點，結合東南公司銷售渠道管理系統的實際情況，確定將助銷式作為東南公司今後渠道管理模式的發展方向；通過確定東南公司採用助銷模式，來解決目前東南公司在銷售渠道管理系統所存在的問題。
  16. Solar images can be obtained by four telescopes at 13. 0nm, 17. 1nm, 30. 4nm and 19. 5nm respectively. it is important for calibration of eut in orbit selecting a proper spectrum line

    四個通道都是在特定譜線對日進行觀測，因此必須選一條公共的譜線經望遠系統對日成像，以便完成望遠鏡在軌校準。
  17. With the demand for high quality of electric energy is increasing ， as the most immediate part to the consumer ， distribution network ’ s efficient and reliable operation is very important as the result ， new distribution automation equipment with high performance is inevitable prime machine system ， as data collection and processing subsystem of dms ， provides communication of kinds of information between control center and rtus it ’ s reliability ， real ? time abilitv and stability affect the scada system directly to solve the disadvantage of the existing system ， whose channels are dependent ， a new proj ect of single board system is brought forward and its hardware and software are designed with high performance chip of communication ， independence of channels is realized basic function of system is realized ， and faster reposition and expansibility of the single chip is fully applied

    配電自動化通信前置機作為dms主站系統的數據採集與處理子系統，提供監控中心與遠方rtu之間各種可能信息的交換功能，其可靠性，實時性和穩定性直接影響scada系統的運行質量。本課題針對現有前置機各通信通道之間不相互獨立、穩定性低的固有問題，提出一種新式單板前置機系統，並對其進行了軟硬體設計，選用高性能專用通信處理晶元，實現各通道獨立，並在實現前置機基本功能的基礎上，充分發揮單片機相對于工控機的快速復位功能以及更好的可擴展性，實現了一個可靠、穩定、靈活的前置機系統。
  18. Alarm input signals are : contact open - circuit alarm, contact closed - circuit alarm, ttl level signals. alarm output modes are : flash alarm, sound alarm, relay contact output alarm optional for memory function or not it adopts high brightness led or long - lifetime planar luminotron separate indicate the current condition for every loop

    各輸入埠均具備萬能信號和單通道輸入功能，且各路可同時輸入不同類型的信號，輸入信號全切換時只需通過儀表菜單的簡單選定，即可實現不同類型輸入信號各種熱電偶熱電阻標準電壓標準電流信號之間的輕松切換，提高了儀表的通用性和可靠性。
  19. The zigbee performance of co - channel anti - interference is investigated. the coexistence problem of zigbee with some interferences in the 2. 4ghz ism ( industry, science, medicine ) frequency band is analyzed. by analyzing zigbee mechanism of anti - interference, such as channel algorithm, and by considering the condition of wi - fi, bluetooth, the following conclusion is reached : the proper choice of channel, larger frequency offset and a proper distance from a interfering source are the three effective strategies for further improving coexistence performance of zigbee

    3 .對zigbee技術本身的抗同頻干擾性能進行了研究，分析了在2 . 4ghz頻段zigbee和主要干擾源的共存問題，通過分析zigbee的通道演算法等抗干擾機制並結合wi - fi 、藍牙等技術的特點，得出結論:正確選擇通道、增大頻偏以及和干擾源保持一定距離是保證共存的三個主要措施。
  20. In didias, pipe is chosen as the inter - hosts communication way and socket as inter - hosts communication way

    Didias系統選定管道作為主機內通信方式， socket作為主機間通信方式。
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