條帶加寬 的英文怎麼說

中文拼音 [tiáodàijiākuān]
條帶加寬 英文
band broadening
  • 條 : Ⅰ名詞1 （細長的樹枝） twig 2 （條子） slip; strip 3 （分項目的） item; article 4 （層次; 秩序; 條...
  1. The wide band network has applied the ip adn atm telecommunication technique, the most advanced in nowadays world. the on - line junction wide band from xinyu to nanchang reaches 22. 5g, which gets to customers via 8, 000 - core km optics cables and wide band switch - in networks. this has speeded uop the information process of this city, providing conditions for the information highway adn entering into " e " age

    5g ，通過遍布市內的8000芯公里光纖網、寬帶接入網及用戶網，能實現千兆到小區、百兆到大樓，十兆到用戶的高速網際網路接入，為真正實現通"信息高速公路" ，加快新余信息化進程，積極融入" e "時代創造了條件
  2. On the left, the marly aqueduct commands the horizon ; on the right, the view unfolds across a never - ending succession of hills ; the river, which at this point hardly moves at all, stretches away like a wide ribbon of shimmering white silk between the plain of les gabillons and the lle de croissy, and is rocked ceaselessly by the whisper of its tall poplars and the soughing of its willows

    左邊是一望無際的馬爾利引水渠，右邊是連綿不斷的小山崗在加皮榮平原和克羅瓦西島之間，有一條銀白色的小河，它在這一帶幾乎是停滯的，像一條寬大的白色波紋緞帶似的向兩面伸展開去。兩岸高大的楊樹在隨風搖曳，柳樹在喃喃細語，不停地哄著小河入睡。
  3. Millimeter wave system has many distinct advantages such as miniaturizing system components, increasing frequency band width, providing higher detectability, uneasily influenced by atmosphere conditions, etc. this makes millimeter wave technique get the increasingly extensive application in radar, communications, electronic warfare, guidance, remote sensing, radiation survey, therefore the research of millimeter system is very vital for civil, the industry, national defense

    毫米波系統具有可以使元部件小型化、增加系統帶寬、提供高解析度以及受大氣條件的影響較小等許多明顯的優點，這使得毫米波技術在雷達、通信、對抗、制導、遙感和輻射測量等技術領域中得到日益廣泛的應用，所以毫米波系統的研究對於民用、工業、國防具有重要的意義。
  4. It will change the hydraulic conditions of the river, such as widening the water surface, decreasing water - flow velocity and purification capacity of water body in reservoir area meanwhile, many problem will be encountered, such as a large quantities of pollution in cities and towns, harmful matters in pesticide and fertilizer in reservoir area, poisonous pollutants in rainfall, accidental discharge of municipal wastewater or industrial sewage, limits of low economic level and urbanization etc.

    該水域的水力學條件發生變化，水流速度減緩，岸邊污染帶加寬，水體的環境容量降低；三峽庫區城鎮污水處理廠和廠礦的有害廢水處理設施不可避免地會發生事故排放；成庫期內庫區城鎮污水的治理很難達到水質要求，以及三峽庫區目前較低的經濟和城鎮化水平制約，庫區城鎮供水面臨的水環境問題日漸突出。
  5. This method provides unequal protection for spiht bet stream with different importance, and adaptively adjusts the source and channel coding rates according to the time - varying characteristic of the channel, thus yields good performance and high reliability without adding extra bandwidth. simulations in rayleigh channel show that the scheme can obviously improve the image quality compared to eep and uep scheme, especially when the channel is in bad condition

    本方法通過對spiht編碼碼流重要性的不同而進行不同程度的保護，並利用通道的時變特性自適應地調整信源和通道編碼速率，從而在不增加額外帶寬的前提下有效地提高了系統的性能和可靠性，經過計算機模擬模擬，得出了在瑞利通道中，傳輸條件惡劣的情況下，本方法比eep和uep能更好的提高重建圖像的質量。
  6. A patch antenna with air holes in the substrate has been designed. the finite - difference time - domain ( fdtd ) method together with the perfectly matched layer ( pml ) boundary treatment has been used to study the performance of the antenna. it is shown that the surface waves are significiently suppressed, the frequency bandwidth is improved, the sidelobe levels are reduced and consequently the gain in the forward direction is improved by 14 db ( about 4 db higher than the value reported previously )

    設計了一種基底鉆周期圓孔結構的電磁（光子）晶體貼片天線，用fdtd方法並結合pml吸收邊界條件對該天線進行了研究，結果表明本文所設計的基底鉆孔型電磁晶體貼片天線取得了多方面的性能改善，與普通天線相比，基底中的表面波受到很大抑制，天線的帶寬增加，遠場方向圖上天線的旁瓣和背瓣被明顯削弱，向前輻射的增益由原來的12db增加到26db ，增加了14db ，比文獻上報道的gonzalo等人的研究結果提高了4db 。
  7. The radiation pattern of the antenna is more rotationally symmetric, and a more reduction on the sidelobe levels of the antenna is achieved as compared to the antenna with the corrugated soft surface. in conclusion, in the present thesis both theoretical and experimental research works have been carried out intensively on patch antennas based on photonic - bandgap structures. it is shown that our photonic bandgap structures can greatly improve the performance of the patch antennas

    該平面圓環結構軟表面天線是在空氣介質的皺褶圓環結構軟表面天線的基礎上改進得到，為了便於比較，我們首先研究了空氣介質的皺褶圓環結構軟表面天線，用fdtd方法並結合pml吸收邊界條件對該天線的性能進行了研究，結果表明天線的帶寬增加，天線的軸對稱性得到了很大改善， e面和h面方向圖的波束幾乎重合，天線的旁瓣和背瓣受到很大的抑制。
  8. Seal the shipping container with either two inches ( 5. 08 cm ) or more width of pressure - sensitive or nylon - reinforced tape or with 60 - pound, three inch ( 7. 62 cm ) wide water - activated reinforced tape. close the box securely, applying three strips of tape to both the top and bottom of the box, so the middle and two edge seams are sealed

    08厘米）或更寬寬度的感壓或尼龍加強膠帶，或者使用60磅、三英寸（ 7 . 62厘米）寬的水活性強力膠帶，密封運輸容器。在包裝箱的頂部和底部貼上三條膠帶，牢固地合上包裝箱，這樣中間的接縫和兩條邊沿接縫就已經密封了。
  9. 754 horizontal - component digital broad - band records in western north america are processed. the acceleration response spectra are calculated and used as part of the database. the response spectrum values are estimated by the earthquake magnitude definition and are used as another part of the database

    將美國西部地區作為參考地區，對美國南加州地區的數字寬頻帶記錄進行了搜集與處理後作為觀測資料，共754條水平向記錄，與利用震級定義所估計的反應譜值一起，用統計回歸的方法建立美國西部長周期加速度反應譜衰減關系。
  10. By using fractional brownian motion envelope process and additional maximum delay constrain, the algorithm overcomes the shortcoming of those packet - loss - probability based methods which can not guarantee the packet maximum delay

    該演算法採用分形布朗運動包絡過程對自相似業務進行分析，通過增加最大延時約束條件，克服了原先基於分組丟失概率的有效帶寬計算方法不能保證業務最大延時要求的不足。
  11. Supposing chaotic ds - spread spectrum signal bandwidth is equal to the fh slot spacing, the bit error rate formula is derived, and its performance is evaluated and simulated assuming the worst case of jamming strategy. the results show that, in some cases, the addition of chaotic ds spreading to fh system, without increasing total system bandwidth, can improve significantly the system ' s resistance to partial band multitone jamming

    對最惡劣條件下系統的抗干擾性能進行了模擬研究，結果表明，在某些情況下，在慢跳頻系統中，加入混飩直擴成分，即使不增加系統帶寬也能有效地改善系統對抗部分頻帶多頻干擾的能力。
  12. Then the transform method and the digital broad - band data from china is applied to obtain the wide period attenuation relationships for horizontal acceleration response spectra of eastern china and western china in rock sites ( c, = 5 % )

    最後用常規的轉換方法，並加入我國158條水平向寬頻帶數字記錄，建立了中國東部和西部地區的水平向基巖寬周期（ t = 0 . 04 - 20s ， = 5 ）加速度反應譜衰減關系。
  13. Because of the affection of noise and signal fading, in order to high data rate access and high quality, wireless communication need new technology to improve the link reliability and enhance the spectrum efficiency. mimo ( multiple input and multiple output ) can enhance the spectrum efficiency and increase channel capacity greatly, and reduce the multipath affection without spectrum band and power increasing. the 3th generation mobile communication wcdma is coming, with the purpose of putting mimo, stbc ( space time block coding ), space diversity into practice of wcdma systems, in order to lay the foundation of 3g toward 4g, this dissertation has done some research under this background

    在發射機和接收機使用多個天線進行數據傳輸的多輸入多輸出（ mimo ）技術，可以在不增加帶寬和天線發送功率的條件下，成倍的提高頻譜利用率，提高系統的通道容量，還可以抗多徑干擾。第三代移動通信wcdma即將到來，為了將多天線技術（ mimo ） ，空間分集技術，空時編碼技術用到wcdma系統中去，為第三代移動通信向第四代移動通信系統平穩過渡奠定一定的基礎，需要做一些理論上的研究。
  14. All the hosts in the ip multicast communication can join or exit from its multicast communication group freely because no matter how many target addresses there are, only one data package can be transferred on one data route

    參與ip組播的主機可在任何位置、任何時間加入或退出組播組。組播可以大大的節省網路帶寬，因為無論有多少個目標地址，在整個網路的任何一條鏈路上只傳送單一的數據包。
  15. Firstly, we introduce the aodv - qos routing algorithm, the aodv routing protocol only try to find the shortest path without concerning about the qos constrains. in aodv - qos, the network has the privilege to generate paths according to its quality, and then an application selects a path with sufficient resources to satisfy a certain delay and bandwidth requirements

    本文首先分析研究了aodv - qos約束路由演算法，它將原始aodv路由選擇的最短路徑原則改為按照業務qos需求選擇路由，即在尋路過程中加入時延和帶寬約束條件，選擇滿足業務性能要求的路由。
  16. On a link where wfq is employed to provide traffic management, bursty, real - time traffic could be delayed - - and latency added - - even if unused bandwidth on the link

    在一條採用wfq來提供流量管理的鏈路上，突發性的、實時的信息流可能被耽誤（被增加了延遲） ，即便鏈路上存在著未用的帶寬。
  17. When the mtf is a constant, with the increasing amount of image motion, increasing trend of the width of target strip is weakening. the numerical value is : the image motion is a / 3, a / 2, a, the corresponding width of target strip is 2a, 2. 11a, 2. 44a

    當mtf一定時，隨著像移量的增加目標條帶寬度的增加趨勢有所減小，具體數值是，當像移量為a 3 、 a 2 、 a時，相應的目標條帶寬度為2a 、 2 . 11a和2 . 44a 。
  18. One new method that the uwb signal can be received ambiguously has been presented in this dissertation. furthermore, the sampling lfm signal becomes two sine signals with different frequencies based on two different delay processes. based on fft and remainder algorithm, the modulation rate and initial frequency of sub - sampling lfm signal are estimated precisely and unambiguously in negative snr

    該方法通過在數字域對信號進行兩路不同的延時和余數定理實現欠采樣條件下超寬帶線性調頻信號的調制斜率和初始頻率的無模糊估計，在不降低參數估計精度的前提下，解決了欠采樣方法引起硬體復雜度增加的問題。
  19. In order to study usefully, both the image motion and the sampling discrete are simulated and the result shows that when the width of target strip is a constant ( 2a ), the increasing amount of image motion is linear relation to the mtf decreased amount

    為了使這種研究更具實際意義，接下來又模擬了像移和采樣離散化共同作用下的成像，這實質是ccd探測器的動態成像過程。結論是：當目標條帶的寬度一定時（模擬中取2a ） ，像移量的增加幅度與mtf的下降幅度為線性關系。
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