lower bandwidth 中文意思是什麼

lower bandwidth 解釋
低頻帶寬度
  • lower : adj 〈low 的比較級〉1 較低的。2 下級的,低級的。 lower animals 下等動物。3 南部的。 in lower Manh...
  • bandwidth : (帶寬):電纜,鏈路或系統傳輸數據的能力。
  1. Based on the real situation of submarine and antisubmarine warfare ( asw ), according to the classical design theory of transducer or transducer array, a sonar will be researched and made, which has the feature of more wider bandwidth, more lower operating frequency, more lager radiation acoustic power, more farther operating distance, more higher researching efficiency and more higher directive accuracy

    本文根據現代潛戰和反潛戰( asw )的實際情況,按照經典的換能器和基陣的設計理論,研製聲吶,旨在擴展其頻帶寬度、降低其工作頻率、增大其發射功率、擴大其作用距離以及提高其搜索效率和定向準確度。
  2. Compare to the normal rectangular waveguide, ridge waveguide has the character of broader bandwidth, smaller dimension, lower equivalent characteristic impedance, etc. because of these merits, it is used more and more widely, such as broadband ridge waveguide filter, broadband direct coupler, diplexer, frequency converter, phase shifter, ridge waveguide slot antenna array, and so on

    與普通矩形波導相比,脊波導具有工作頻帶寬、尺寸小、等效特性阻抗低等特點。由於脊波導本身的特點,使其得到了越來越多的應用,例如寬帶脊波導濾波器、寬帶定向耦合器、雙工器、變頻器、移相器、脊波導縫隙天線陣等等。
  3. The bottleneck of hybrid filter banks adc system is that it cannot sample directly higher radio frequency signal because of lower analog input bandwidth of its adc. in order to remove it, a kind of downsampler model based on nyquist and bandpass sampling theorem is presented, analyzed and proved in time and frequency domain, in addition a downsampler is designed according to the model. on the basis of hybrid filter banks adc system, a class of high speed hybrid filter banks adc system is proposed

    針對混合濾波器組adc系統因其adc模擬輸入帶寬低而不能對頻率較高的射頻模擬信號進行模/數轉換的瓶頸,作者提出了一種基於nyquist采樣定理和帶通采樣定理的抽取器數學模型,對該數學模型進行了時域、頻域的分析證明后,設計了一種基於該數學模型的sha抽取器,進而在混合濾波器組adc系統的基礎上,提出了高速混合濾波器組adc系統。
  4. In order to measure the characteristics of such semiconductor optical amplifier, we adopted a set of measurement system. this measurement system can be used to measure the characteristics of all kinds of active or inactive optical passive components. such device presents good polarization insensitivity ( < 0. 9db ), wide 3db bandwidth ( > 33nm ) at 0 - 200ma and different input signal light wavelength and power, the maximum fiber - to - fiber gain of 10db, lossless operation current of 50 - 75ma for different input signal light wavelength and power, large extinction ratio ( > 50db ) and lower noise figure ( nf ) ( < 8db )

    與張瑞英博士一起,首次利用該種有源區結構制備出偏振不靈敏半導體光放大器,並在0 - 200ma注入電流范圍內獲得33nm的3db帶寬,在不同信號波長,不同信號功率0 - 200ma的注入電流范圍內,偏振相關損耗均《 0 . 9db ,在耦合差損為7db / facet的條件下,最大fiber - to - fiher增益達10db ,無損操作電流為50 - 70ma ,消光比達50db以上,而噪聲指數則低於8db ,最小可達4 . 6db 。
  5. The simulated results show that we can improve the sensitivity by setting the optical bias at / 2, reducing the gap of electrode, increasing the overlap integral factor, reducing the insert lose, adopting suitable segmentation number, increasing the electrode length, increasing the optical power, reducing the wavelength and the relative intensity noise and reducing the receive bandwidth ; obtain the wider bandwidth utilizing reducing the electrode length and the capacitance of modulator, segmentation the electrode ; increase the dynamic range using lowering noise, increasing the optical power at the detector and lower optical bias

    通過計算得知,使傳感器相位偏置為/ 2 ,減小電極間距,提高電光重疊因子,減小器件插入損耗,採用合適的分段數,增加電極長度,增大光功率,降低激光的波長,減小相對強度噪聲,減小接收帶寬,對提高靈敏度的效果是非常明顯的。而減小天線長度,降低調制器電容,電極分段,都可以獲取較大的帶寬。降低系統噪聲;增加到達探測器的光功率,採用較低的光學偏置,都可以增大線性動態范圍。
  6. The relationship shows that the maximum bandwidth is limited for these algorithms and becomes narrow when the center frequency is lower and the imaging squint angle is larger

    這種關系表明雷達可用的信號帶寬是有一定限制的,隨著工作頻率的下降和成像斜角的增大,可用的信號帶寬會變得越來越小。
  7. Experiment results also show that our improved algorithm achieves the same perceptual quality as g. 726 standard while our improved algorithm uses a lower bit rate. therefore, our proposal may lead to telecommunication bandwidth saving and storage requirement reduction

    經實驗結果驗證,本語音編碼演算法與g . 726語音波形編碼標準相比,比特率下降了15 . 19 %以上,同時兩者的語音質量完全沒有差別。
  8. The research on the rf characteristics of the conductor - centered helical groove sws. ( a ) in the " cold " system, we found that the changing of depth of the groove has no distinct effects on the phase velocity at the lower frequency region ; but with the increasing of the frequency, the phase velocity and bandwidth are reduced slightly, the structure is more dispersive and the coupling impedance is enhanced

    對具有中心導體軸的矩形螺旋槽慢波系統的高頻特性進行了理論研究: ( 1 )在冷系統中的研究結果表明:頻率較低時,槽深的改變對相速的影響不是很大,隨著頻率的增大相速略有減小,同時帶寬也有所減小,色散變得稍強,耦合阻抗增大。
  9. With increasing demand for higher bandwidth and lower latency packet switching, communications providers introduced frame relay

    因為較高的頻寬及較低延遲的分封交換的需求增加,通訊提供者引入了訊框中繼。
  10. In order to solve this problem, this research adopts the electrical self - regulation circuit in series, on the basis of the unchanged of transfer function of electromagnetism rate transducer, extend frequency bandwidth of the transducer, improving its capability. after the self - regulation, the transducer has high passing feature and inferior lower lever cut - off frequency ( below 1 hz )

    為了解決普通電磁式速度傳感器不能檢測超低頻振動信號的問題,本研究採用了一種串聯式電子補償電路,在保持電磁式速度傳感器的傳遞函數性質(高通)不變的前提下,拓展了傳感器的頻寬,改善了傳感器的性能。
  11. Two 3 - frames - grained scheduling policies are suggested to make good trade - off between processing demands and on - chip buffer demands in software decoding implementation. a static time division multiplexed scheduling / dynamic fixed priority arbitration based 2 - level hybrid arbitration scheme, incorporated with synchronization control, is introduced in this paper to utilize the bus bandwidth effectively and lower on - chip buffer demands in media soc

    提出了一種基於靜態分時復用調度動態固定優先級仲裁的混合二級總線仲裁策略,通過分割總線時間片靜態調度媒體數據流dma傳輸,使之與解碼流程同步配合,有效地分配和使用總線帶寬,降低了片上數據緩存等硬體開銷。
  12. Why does my application often have packet loss even the throughput is much lower than the available bandwidth

    為什麼我的程序經常丟包,甚至在傳輸速度遠遠低於可用的帶寬時也會發生?
  13. In term of bandwidth fluctuation of internet, proposes two types of scalable video coding scheme adapted to transmission of internet, that is, a fine - granularity spatially scalable video coding and a progressive fine - granularity scalable video coding. meanwhile, proposes a wavelet transform ' s algorithm using for lower rate coding

    同時針對internet上傳輸帶寬波動性,提出了兩種可用於internet傳輸的可伸縮視頻編碼方案- - fgss (精細空間可伸縮視頻編碼)和pfgs (漸進精細可伸縮視頻編碼) ,提出了用於極低碼率的小波變換編碼演算法。
  14. As we know, a single fiber can support more than 50thz lower - loss bandwidth in theory

    其中,嘗試和探討了一種改良過后的子通路保護的模型。
  15. The lower the byte count downloaded to the browser or loaded from the browser s cache, the better the application s performance, and the less bandwidth the application will consume

    下載到瀏覽器的位元組數越少或從瀏覽器緩存加載的位元組數越少,應用程序的性能就越高,應用程序消耗的帶寬越少。
  16. This means that you can give users access to data - heavy applications over lower bandwidth connections ( for example, 28. 8 kbps dial - up ) and provide higher performance than would be possible without terminal services

    這意味著用戶可以通過低帶寬的連接(例如28 . 8kbps撥號連接)訪問大數據量的應用程序,並比不用終端服務有更高的性能。
  17. Ofdm is one of multi - carrier digital modulation techniques, in which a single high data rate data stream is transmitted using a number of lower data rate sub carriers, it has many properties, such as robustness to multi - path fading, high data rate transmission capability with high bandwidth efficiency, and so on

    Ofdm是一種特殊的多載波傳輸方式,它使用一系列低速子載波并行傳輸數據,使得它具有抗多徑干擾的能力、能以很高的頻譜利用率實現高速數據傳輸等。
  18. Through performance analysis under multi - priority burst traffic, we demonstrate that the load - balancing algorithm is efficient, and the switch system not only provides excellent performance to real - time traffic, but also efficiently allocates bandwidth among other traffic of lower priorities

    另一方面,隨著計算機網路的普及和終端用戶的增多,網路流量和業務種類呈現爆炸性增長,這就使得探討核心路由器中如何取得更好的qos控制具有重要的研究意義和廣闊的應用前景。
  19. But between the lan and backbone is provided by much lower bandwidth technologies available through the existing copper wire, adsl, cable modem, and the " last mile " ( between the lan and fiber backbone ) problem has become a bottle - neck in the wideband transmission

    但是光纖干線和局域網間接入系統卻是傳統的銅纜、 adsl 、同軸電纜等,傳輸速率都在10mbps以下。所以光纖和局域網間「最後一公里」的接入成為解決寬帶傳輸的瓶頸問題。
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