有效帶寬 的英文怎麼說

中文拼音 [yǒuxiàodàikuān]
有效帶寬 英文
effective band range
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 有效 : effective; valid; efficacious
  1. Our treatment shows in the raman effect case, mnls solitons, the same as nls solitons, keeps its energy, initial center and initial phase unchanged. however, the raman effect, not the same as nls solitons. reduces its amplitude, widens its width and under the same conditions, the self - frequency shift of mnls soltions is closer to the result of numerical simulation. in the raman effect together with frequency filters case, mnls solitons, the same as nls solitons, keeps initial center and initial phase unchanged and bandwidth - limited frequency filters can make the mean frequency of mnls soltion stand a steady value at the red side of the initial mean frequency, i. e. suppress the self - frequency shift of mnls soltions. and that, the other physical parameters of mnls soltion last stand a steady value. however under the same conditions, the steady value of the mean frequency of mnls soltions is closer to the initial mean frequency and the result of numerical simulation

    有所不同的是， raman效應雖然不改變孤子能量，但會引起孤子峰值的下降和寬度變寬，且在同一條件下， mnls孤子微擾理論得到的自頻移比nls孤子微擾理論得到的更接近直接數值計算結果。有限帶寬的頻率濾波也不引起mnls孤子初始中心、初始位相的改變，選取適當的頻率濾波器參數值能使孤子的平均頻率穩定在初始平均頻率的紅側一穩定值，抑制了自頻移，而且孤子的各物理量最後都穩定在一穩定值，這些與nls孤子微擾理論都是類似的。有所不同的是，寬度為飛秒量級下， mnls孤子平均頻率的穩定值更接近初始平均頻率，更接近數值計算結果。
  2. Available bandwidth analysis of ieee802. 11a wlan

    無線局域網有效帶寬分析
  3. Available bandwidth analysis of ieee802. 11b wlan

    無線局域網有效帶寬分析
  4. Measurement - based admission control algorithm for soft real - time application

    業務流的有效帶寬及其基於測量的接納控制演算法
  5. Experimental result demonstrate that the method mitigates the impact of bandwidth variety and is also improves the quality of multimedia transmission service

    實驗表明該方法解決了有效帶寬變化對視頻傳輸的影響，很大程度上提高了多媒體傳輸的質量。
  6. This inverse filter can consider the efficacious bandwidth of signal tested and the character of measurement system synchronously so we can acquire the estimating value of signal tested and the error is little

    這種反濾波器兼顧被測信號的有效帶寬和測試系統的特性，能夠得到被測信號誤差很小的估計值。
  7. 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。
  8. By formula about effective bandwidth, he get the bandwidth near 1540 nm wavelength, which is 64. 54nm. the bandwidth is more bigger than the gain bandwidth of er - doped silica fiber and fluoride fiber amplifier ( 20nm - 30nm ). it is useful to improve transmitted capacity of information in fiber

    對1540nm處光譜有效帶寬的計算，得到結果為64 . 54nm ，這個帶寬已遠高於目前常用摻er硅光纖和氟化物光纖放大器的20 - 30nm增益帶寬，于擴大光纖信息傳輸容量有很大益處。
  9. We derived theory for abstraction of bandwidth resource and characterization of system capacity for multi - class fading system. bandwidth resources allocated to a user can be abstracted as effective bandwidth, determined by the user ’ s source data rate and target bit error rate. system capacity can be characterized by a theoretical bound. simulations show that actual system capacity is close to the theoretical bound

    為一個用戶所分配的帶寬資源被表示為有效帶寬，用戶對數據速率和比特誤碼率的要求決定了對有效帶寬的要求。利用有效帶寬的概念來描述系統的用戶容量並給出了系統容量的理論界限，進一步地，還得到了系統存在發射功率限制時的容量界限。
  10. It is necessary to obtain performance data correctly and effectively for well designing, managing and applying network. performance measurement technology is the only effective way to obtain performance data correctly and effectively. it obtained network ' s correct performance characteristics by measuring the available bandwidth, delay and lost of packets, and monitoring the congest and traffic fluctuation etc. it is the base of designing, managing and applying network and very important for them

    要設計、管理和利用好網路，必須要求有效地獲取性能特徵方面的準確數據，網路性能測試技術是準確而有效地獲取性能特徵的唯一手段，它通過對網路實際和有效帶寬、數據包的延遲和丟失等的測試以及對網路擁塞、數據的突發性等運行狀況的監測，獲得網路性能特徵的準確數據，從而對網路的設計、管理和應用起著非常重要的作用。
  11. In the third chapter, the graft of tcp / ip in openbsd on psos + and the realization of the internet protocols including pppoe ppp smtp pop3 imap dns dhcp, embedded web server and how to estimate network state used by rtp / rtcp are introduced. in the fourth chapter, firstly h. 261, h. 263 h. 263 + standards and their differences are introduced

    在第三章中闡述了基於ip的網路通信協議的實現，主要是openbsd中的tcp ip協議棧在psos +上的移植和pppoe 、 ppp 、 smtp 、 imap 、 pop3 、 dns 、 dhcp協議、嵌入式web服務器的實現，然後介紹如何利用rtp rtcp來檢測網路有效帶寬，其中的網路有效帶寬就是在第六章提出的碼率控制演算法中確定目標幀率的依據之一。
  12. The modified perry - robertson equation is applied to calculate ultimate compressive strength of damaged stiffened panels founded on so - called beam - column method, and the width of effective plate adopts above reduced effective width of a damaged plate

    在進行受損加筋板格極限強度計算時，按樑柱法採用修正的perry - robertson方程進行計算，其中有效帶板的寬度取板格折減后的有效寬度。
  13. To the primary contradiction of real - time interactive visual simulation, limited bandwidth of network and real time transmitting parameter of relative to move sight, the control mechanism of 3 - d visual object is discussed, under the direction of hla idea, the visual federal object model vfom is established to describe the visual data distributing ; the author designed a grammar of vfom context and a turing conversion mechanism, it will support exploitation of visual simulation in different field ; the author analyses and apply opengl to design a method of implement real - time interactive visual simulation on pc, in additional with object - oriented program technique network communication technique multithreading technique, implement pc - virsp. there are 7 chapters in this thesis. in chapter 1, the developments of virtual simulation is looked back, the aim and significance and the main search content is put forward

    論文針對實時交互視景模擬的主要矛盾，即網路有限帶寬與視景運動交互參數實時傳輸矛盾，探討了三維視體運動控制機理，結合hla思想，建立視景聯邦對象模型（ vfom - visualfederalobjectmodel ）來描述視景數據分佈；並設計了模擬實體鏈描述文本文法及其存儲轉換機制，有效支持多領域視景模擬系統開發；分析並應用圖形介面標準opengl ，設計了基於pc機的實時互操作視景生成方法；針對網路分佈環境下視景模擬實時交互需求，設計視景運動同步控制方案；並綜合應用了面向對象編程技術、網路通信技術、多線程技術，實現了基於pc機的視景實時互操作支撐平臺（ pc - vrisp ? real - timeinteractivesupportingplatformforvirtualsimulationbasedonpersonalcomputer ） 。
  14. We also have analyzed the photoluminescence ( pl ) spectra of some zno films, it turns out that the emission of ultraviolet light comes from the radiative recombination of excitons within nano - crystal energy band - gap, and the pl peaks move to smaller wavelength because zn are substituted by fe, co, and cu, which cause the size of the film grains smaller and the effective band - gap bigger. the red emission of zno films is due to, on the one hand, decrease of the film grains size which causes the emission intensity smaller and smaller until it disappears abruptly, on the other hand, the transition of electrons from deep donor level of the oxygen vacancies to the valence band

    另外，我們還對薄膜光致發光性質進行了分析和研究，結果表明：納米結構zno薄膜的紫外發光來源於帶間激子的輻射復合發光， pl譜的帶邊發射峰發生藍移是由於fe 、 co 、 cu對zn的替代使薄膜粒子的尺寸減小，使薄膜的有效帶隙增寬； zno薄膜的紅色發光，一方面是zno顆粒尺寸的減少，帶間的激子發射峰越來越弱直至猝滅，另一方面主要是與zno晶格中的o空位有關，由深能級復合發光引起紅光發射。
  15. We also proposed a new call admission control ( cac ) scheme for cdma cellular system that incorporates adaptive power control and mmse multiuser receiver and support multi - class traffic. the call admission control scheme is based on estimation of othercell interference and implemented distributively in each cell. capacity determined by the admission control agrees with the actual system capacity in the simulation. the scheme can achieve high bandwidth utilization and guarantee qos requirements of all the users at the call level

    為此，提出了呼叫確認策略，以保證系統中不同業務的所有用戶的qos 。呼叫控制策略在每一小區分佈地進行，通過估計其它小區的干擾確定小區的可用有效帶寬，再根據小區當前的負載決定是否對呼叫請求給予確認。呼叫確認控制可以在呼叫級保證用戶的qos 。
  16. We will discuss the construction of a digital transmission system with high bandwidth efficiency and good error rate performance. in the condition of 25khz wireless channel

    本文主要討論在25khz通道條件下建立一個具有高帶寬效率和較好誤碼性能的無線數字傳輸系統。
  17. There are three power transistor which have been widely used in s band now : bipolar junction transistor ( bjt ), gaas metal - oxide semiconductor field effect transistor ( gaas mosfet ) and lateral diffuse metal - oxide semiconductor field effect transistor ( ldmos fet ). thanks to the advantages, such as, wide frequency, easy power supply, good stability, the ldmos fet has used in the motion telecommunication

    目前在s波段人們常用的放大器有雙極性晶體管（ bjt ） 、砷化鎵場效應晶體管（ gaasmosfet ） 、邊緣擴散場效應晶體管（ ldmosfet ）等，由於ldmosfet具有頻帶寬、供電方便、穩定可靠等優勢，目前已經廣泛用於移動通信3g的研究。
  18. ( 2 ) the serious recording limitations due to the finite size and resolution of ccd are discussed detailedly. it ' s shown that the setup for recording hologram with spherical reference wave can make full use of the spatial bandwidth of ccd

    （ 2 ）著重討論了ccd參數對記錄條件的限制，給出了數字全息術所能記錄的物體的最大尺寸與記錄距離之間的關系，指出用球面參考光波記錄全息圖可以更為有效地利用ccd的有限帶寬。
  19. The analysis on the method shows that an advantage of wavelet - based video compression coding is that it offers more graceful image degradation at high compression ratios, and it also eliminates the block artifacts seen in dc compression. and it can solve the contradiction between limited bandwidth and infinitude requirements of increasing customers in present communication system

    該系統充分利用人眼的視覺特性來減少幀內和幀間的冗餘信息，能夠消除傳統圖像編碼的方塊效應、蚊子效應等現象實現高壓縮比，高質量的圖像編碼，可較好地解決現行通信系統中有限帶寬與日趨增加的無限用戶需求之間的矛盾。
  20. How to use the current limited bands of ip network and satisfy the restrict requirements of qos are the key to the problem

    如何有效利用現有ip網路的有限帶寬，盡可能滿足對qos有較為嚴格要求的實時應用是解決問題的關鍵。
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