無關噪聲 的英文怎麼說

中文拼音 [wúguānzàoshēng]
無關噪聲 英文
uncorrelated noises
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 關 : Ⅰ動詞1 （使開著的物體合攏） close; shut 2 （圈起來） shut in; lock up 3 （倒閉; 歇業） close down...
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  • 無關 : 1. （沒有關系; 不涉及） have nothing to do with; be unconcerned 2. [數學] independence
  1. Aiming at the stock market data ( smd ) increasing infinitely, being short, noised seriously, three algorithms are presented to pretreat smd. they do n ' t reduce the useful information but also eliminate the noise ; 2

    基於股市數據無限增長及我國股市數據的時間序列不長、噪聲水平較高，提出三種股市數據預處理演算法，在降低噪聲水平的同時又不損失長程相關的有用信息； 2
  2. Low noise amplifier ( lna ) is widely used in front end of a received set of mobile communication 、 wireless radio 、 blueteech technology and so on 。 the active device is the core of the circuit and has significant effects on the whole equipment, therefore, the design of the active device is vital in lna

    微波低噪聲放大器（ lna ）廣泛應用於移動通訊、無線電、藍牙技術等的rf前端。 lna中的有源器件是整個電路的核心，對整個放大器電路的性能有著重要的影響，因此有源器件的設計是lna的關鍵技術之一。
  3. Combined with the mp algorithm the model can wipe off perceptually irrelevant sinusoids and control the distribution of intrinsic model noise

    將該模型與mp演算法配合，可以去除感知上無關的正弦波，控制模型噪聲的分佈。
  4. The basic characteristics of the current data network are point - to - point, connectless, doing one ' s endeavor, no quality of service, etc. these characteristics do not meet the requirement of real - time services, therefore, the realization of voip need support of the some key technology. these technologies includes : speech sound coding and data compression, real - time transmission and control, mute compression and multicast, acoustic - echo cancellation and comfort noise generator, dynamic monitor and guarantee of quality of network service, as well as, the compatible of different network and different protocol with each other

    但現有的數據網路的基本特性：點對點的、無連接的、盡力而為的、沒有服務質量保證等特性並不適合與實時的業務要求，因此voip的實現需要一些關鍵技術的支持，這些技術包括：語音編碼和壓縮技術、實時傳輸和控制技術、組播技術、靜音壓縮和舒適噪聲生成技術、回聲消除技術、網路服務質量的動態監測和保證技術、以及不同的網路、不同的協議之間的互連互通等等。
  5. Because of the using of interpolation, noise shaping and switching amplification in the digital audio amplifier technology, the power supply modulator is not only much efficient but also behaving good in envelope amplification, this advantage is hard to implemented with conventional technology

    數字音頻功放技術是近年發展起來的高效率音頻放大技術，該放大技術採用了過取樣、噪聲整形等數字音頻處理演算法和開關功率放大。採用該技術實現的電源調制器不但具備很高的效率，而且能高指標地放大包絡信號，是常規的電源調制技術無法實現的。
  6. As for instruction practice, in the perspective of postmodernism, it will keep open to all the people ' s real life and potential creativity. it will make itself much closer to reality but away from systemization and symbolization by putting into serious consideration interference factors called noise by modern instruction such as unrelated factors of problems, accidental events in class and students " affection and experience and so on

    就教學實踐而言，在後現代思想視野下，它將呈現出一種向「所有人的真實生活與潛在創意」開放的姿態，它通過讓那些被現代教學視為「噪聲」的干擾因子，如問題中的無關條件、課堂上的突發事件、學生的感情體驗等登堂入室，使自身更貼近現實生活而遠離制度化和符號化。
  7. Frequency response, quantization noise, reconstruction error and its sensitivity to mismatch among adcs are studied at length in prqmf banks adc system, and the theoretic results include : ( 1 ) the distortion / aliasing functions of hybrid filter banks adc system is similar with that of switch capacitor filter banks adc system ; ( 2 ) for wide or narrow band input signal, the effective resolution of the two adc systems is 0. 51og2m bits higher than their adc ; ( 3 ) reconstruction error ' s sensitivity to mismatch among adcs of the two adc systems is reduced effectively than time interleaved adc system

    2對prqmf濾波器組adc系統的頻響、量化噪聲特性、重建誤差特性以及重建誤差對adc間的失配敏感性進行了理論分析研究，所得到的理論結果為： （ 1 ）混合濾波器組adc系統與開關電容濾波器組adc系統的失真/混迭函數一致； （ 2 ）無論輸入寬帶還是窄帶信號，這兩種adc系統的有效解析度均比其adc提高了0 . 5log _ 2m比特； （ 3 ）這兩種adc系統的重建誤差對其adc間的失配敏感性均明顯低於時間交織adc系統。
  8. 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 。
  9. The signal / data obtained by measurement or observation usually contain two parts : one part is useful which has a direct or indirect relation to the research object, called information. and the other part is interferential has no relation to the research object, called noise

    通過測量或觀測所獲得信號或數據通常包含兩個部分：其一是與所研究的對象存在直接或間接關系的有用部分，稱為信息；另一部分是與所研究的對象無關的干撓部分，稱為噪聲。
  10. The problem of doa ' s estimation of multiple source signals incident on a arbitrary array in the presence of both unknown spatially correlated noise and sensor errors is firstly considered. a modified ml estimation of doa ' s and sensor gain errors is presented. unlike previous work, the proposed method does not impose any structure constraints or parameterization of the signal and noise covariances. the algorithm can be carried out via the alternating projection approach. finally, the performance of the proposed method is shown with computer simulations as well as real array data

    在空間相關色噪聲環境及存在陣列模型誤差情況下，首先給出了基於最大似然的doa及陣列幅相誤差聯合估計演算法，該演算法對信號和噪聲無任何約束，且適用於任意陣列結構。演算法可以利用交替投影迭代搜索實現，計算機模擬實驗和外場實測數據表明，本章演算法能給出比傳統的最大似然方法更高的估計性能。
  11. With the advantages of high gain and output power, low noise, wide bandwidth as well as no relation with polarization, edfa changes the traditional optical - electrical - optical relay mode step by step in many fields, and becomes an indispensable device in modern optical communication systems. it saves the expensive cost in optical - electrical transition, makes equipment easy to operate and maintain

    由於其本身具有高增益、高輸出功率、低噪聲、帶寬寬、與偏振無關等優點，在很多領域和場合， edfa正逐步取代傳統的光-電-光中繼模式，省去光電/電光轉換的昂貴成本，便於設備的運行維護，成為現代光纖通信系統中不可缺少的關鍵部件。
  12. Since the state of gene should not be observed obviously, it is often to study the state of gene through the level of the protein expressed by the gene in cells

    這樣原來研究的確定論非線性模型就轉變成了含噪聲的朗之萬方程（ le ） 。由於實驗是無法測出基因的狀態是處于開還是關。
  13. The autocorrelation function of the pn code is similar to that of the white noise, which has the randomicity. the pn code phase modulation fuze just works on the basis of this characteristic. the fuse, having excellent cut - off performance of the distance and strong anti - jamming capability, is one of the radio fuze of the predominant performance

    偽碼引信是利用偽隨機序列的自相關函數類似於白噪聲相關函數的隨機特性而工作的，這種引信距離截止特性好，抗干擾能力強，是一種性能優越的無線電引信。
  14. With the development of the electronic technology, the higher requirements of power supply are raised including high efficiency, high power density, low emi and rapid dynamic response

    隨著電子技術的發展，用設備對電源要求不斷提高，開關電源正向著效率高、功率密度大、可靠性高、電磁干擾低、無噪聲、維護方便的方向發展。
  15. With the development of the electronic technology, the higher requirements of power supply are raised including high efficiency, high power density, low emi and rapid dynamic response. a hysteresis - band instantaneous current control pwm technique is popularly used because of its simplicity of implementation, fast current control response, and inherent peak current limiting capability

    隨著電子技術的發展，用電設備對電源要求不斷提高，開關電源正向著效率高、功率密度大、可靠性高、電磁干擾低、無噪聲、維護方便的方向發展。
  16. Low noise amplifier ( lna ) is a key component in the front - end of rf transceiver

    低噪聲放大器（ lna ）是無線收發機前端的關鍵電路之一。
  17. Design a kind of sub - optimum digital prefilter. through the simulation of timing recovery loop which is n ' t added prefilter and which is added prefilter, discuss the convergence characteristic and compare the relation between timing jitter and signal to noise ratio, the relation between timing jitter and noise bandwidth of loop, the relation between symbol error ratio and signal to noise ratio

    通過對加預濾波器后的定時恢復環的模擬，討論了環路的收斂情況，比較了所設計的數字預濾波器和無預濾波器時環路定時抖動與信噪比、定時抖動與環路噪聲帶寬、誤碼率與信噪比的數量關系，證實所設計的數字預濾波器對減少定時抖動非常有效。
  18. For a long time, people are always paying attention to the problem of monitoring equipment status in manufacturing in order to know about the equipment operation status and oil quality. and they made a lot of research, such as vibration, yawp, temperature, oil, sound emission and lossless detection technology, and so on

    在製造行業中，長期以來，人們為了能及時了解設備運行狀態和油液質量，一直關注對設備狀態的監控問題，也做出了很多研究和探索，如振動監測技術、噪聲監測技術、溫度監測技術、油液分析技術、聲發射技術和無損監測技術等。
  19. Abstract : to against the fact of the commercial available white noise generators are very expensive which is not good for general operations, a simple and effective limited band white noise generator is design. the generator is using the feature of dual polarity transistor, i. e., the power spectrurn density of particulate noise is not related to frequency in very wide band and close to white noise. the concrete circuit is also given

    文摘:針對市售白噪聲發生器價格昂貴，不利於一般場合使用的問題，介紹利用雙極性晶體管散粒噪聲功率譜密度在非常寬的范圍內與頻率無關，屬白噪聲這一特性，設計了一種簡捷、有效的限帶白噪聲發生器，並給出了具體電路。
  20. This paper introduced that how resynthesize the neural firing rate by correlogram inversion, how resume the lost information by half wave rectification inversion. and a solution of speech enhancement based on masking properties of human auditory is proposed and implemented, we can not only analyse and resynthesize speech signal, but also analyse and resynthesize speech signal in noisy entironment with the system

    介紹了如何從信號的自相關圖譜中逆變換中得到信號的神經發放率函數，怎樣從信號的半波整流逆變換中恢復丟失的信息等等。又根據聽覺生理特點提出了抗噪聲方案，使我們的語音分析重構系統不僅可以對無噪信號進行重構，而且還可以在噪聲環境下的語音信號進行重構。
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