消噪系統 的英文怎麼說

中文拼音 [xiāozàoxìtǒng]
消噪系統 英文
nr=nolse reduction
  • 消 : 動詞1 （消失） disappear; vanish 2 （使消失; 消除） eliminate; dispel; remove 3 （度過; 消遣） pa...
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
  • 系統 : 1. （按一定關系組成的同類事物） system 2. （有條理的;有系統的） systematic
  1. There are over 80 sets test apparatus in tech - innovation centre, including : anechoic chamber, vibration tester, vibration measurement analysis, impact instrument, constant temperature and humidity facilities. salt spary test case, circle insulation withstand voltage tester, insulation resistance tester, withstand voltage tester, electric lead tester, electrical leakage tester, earth resistance tester, chassis dynamometer, chassis dynamometer control system, high stability dc resistance tester, electrical capacity tester, temperature rise test system

    中心擁有各類分析測試儀器和試驗裝置80餘臺套，包括：消音室振動臺噪聲振動測試分析系統沖擊儀恆溫恆濕實驗儀鹽霧試驗箱匝間耐壓分析儀絕緣電阻分析儀對地耐壓分析儀泄露電流測試儀對地電阻測試儀測功機測功機控制系統高精度直流電阻測試儀電參數測試儀帶電溫升測試儀復合式三坐標測量儀萬分投影儀及電功測試分析系統等。
  2. Noise of a running train will be mitigated by low vibration track, floating slab track, train skirts and a multi - plenum system to attenuate airborne noise at source

    為減低列車經過時所產生的噪音，支線的路軌會裝置彈性底板及浮動平板，列車亦會裝上裙邊及多重隔音系統，以消減因結構震蕩而產生的聲音。
  3. This paper studies the mechanism generated from flow - noise in seawater pipeline, introduces controlling method of flow - noise, analyzes sound field characteristics of flow - noise in seawater pipeline system and the merits and demerits of measuring the flow - noise methods in and out of the pipeline. in our experiment, a test measuring device of seawater muffler is used in a measuring chamberlet to verify that a method of reverberation chamberlet is difficult to exactly measure the low frequency flow - noise in pipeline. at the same time the insertion lose of water muffler in the low frequency was measured by the measuring chamberlet method

    本文分析了海水管路系統內流噪聲的產生機理，介紹了流噪聲的控制方法；分析了海水管路系統中流噪聲的聲場特性以及流噪聲管內、管外測量方法的優缺點；通過海水消聲器試驗測量臺架，利用測量小室驗證了混響箱法難以準確測量海水管路系統中的低頻流噪聲；用測量小室對水消聲器在低頻段的插入損失進行了測量。
  4. In quantum system, noise primary results from decoherence and imperfect quantum gates. the code that combat noise is named quantum channel coding

    在量子系統中，通道噪聲主要源於消相干效應和量子門的不精確性。
  5. 5 ) the system ' s sensitivity and snr can be improved by the method of balancing the standing capacitance using dc offset compensation

    採用直流反饋補償的方法消除電容傳感器極板間的靜態電容，提高了系統的解析度和信噪比。
  6. Thirdly, in the environment of labview, several kinds of vis used for sensor signal test are designed, including wave generation, time domain measurement, filter disposal, frequency analysis, etc. after that, wavelet analysis in the application of one - dimensional signal de - noise is studied, threshold and translation invariance wavelet de - noise are realized, and wavelet de - noise vi for zero drift signal of the fiber optic gyro in fcs is designed using labview

    接著，在labview環境下開發了多種用於傳感器信號測試的虛擬儀器，具有波形發生、時域測量、濾波處理、頻譜分析等多種功能。隨后，研究了小波分析在一維信號消噪中的應用，實現了labview環境下的閾值法和平移不變量法小波消噪，並利用labview設計了飛控系統中光纖陀螺零漂信號的小波消噪儀。
  7. Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section

    在第三章介紹無線光接入系統的光收發單元，採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用，針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術，同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標，最後給出了一個整個傳送鏈路的功率預算。
  8. ( 3 ) the author applied wavelet analysis in the data processing of airborne radioactive survey, and analyzed the effect of wavelet used in spectrum data processing, line data processing and region data processing. the author had proved that the wavelet used in spectrum data processing can gain more true and more ideal information than traditional data processing method, and can accurately identify information which is beyond main energy windows by practice data. the author considered it is effective to extract abnormal information when the wavelet used in line data processing, and it is effective to eliminate the belt of airborne radioactive survey data when the wavelet used in region data processing

    有效的融合了遙感航測信息，提高了工作效率； （ 2 ）根據光學有關物理性質，製作的模擬反射率圖，囊括了tm數據七個波段的信息，使得圖像質量、地物解析度得到了提高； （ 3 ）在航放數據處理過程中引入了小波分析，系統分析了小波在處理單點數據、測線數據、測區數據的應用效果；用試驗數據證明了小波處理單點數據可得到較傳統數據處理方法更為真實、理想的譜數據，能準確的識別主能量窗以外的信息；認為處理線數據，可以提取埋藏於噪音中的異常信息；處理測區數據，對消除航放數據的條帶有一定的效果。
  9. Nanc has two adaptive filters : a main filter ( mf ) and a subfilter ( sf ). the signal - to - noise ratio ( snr ) of the input signals is estimated using the sf

    該自適應噪聲抵消系統由主自適應濾波器（ mf ）與分自適應濾波器（ sf ）組成。
  10. On the basis of analysing multilayer forward artificial neural networks which based on back propagation algorithms and basic principles of the adaptive noise cancellation system, this paper sets up an adaptive noise cancellation controller based on artificial neural network, which is proved to be more efficient in the noise cancellation and has robust performance based on simulink of matlab at the end, this paper proposes some advices of model and algorithms

    在對基於誤差反向傳播學習演算法的多層前向人工神經網路進行分析基礎上，結合傳統自適應噪聲抵消系統基本原理，建立了基於人工神經網路的自適應噪聲抵消器，經基於matlab的simulink模擬實例證明，具有很強的噪聲濾除能力和魯棒性。最後並提出了網路及演算法進一步改進的方法。
  11. Because the adaptive algorithm of conventional adaptive noise canceller is the least mean squares ( lms ), and the convergence rate of lms is heavily dependent on the eigenvalue distribution of the autocorrelation matrix of the input signal, thus lms converges at unacceptably low rates when the input signal is colored noise or speech

    由於傳統自適應噪聲抵消系統（ anc ）自適應演算法主要採用lms演算法，而lms演算法收斂速度依賴于輸入信號自相關矩陣特徵值的分散程度。因此，當輸入信號是語音或有色噪聲時， lms的收斂速度很慢。
  12. Computer simulation results show that the proposed algorithm reduces the signal distortion and the reverberation which are caused by misadjustment errors in the adaptive filter and the correlated component of the speech in the reference signal compared with a conventional adaptive noise canceller ( anc )

    模擬結果證明nanc演算法有效克服了影響傳統自適應噪聲抵消系統（ anc ）性能的一些瓶頸，如兩輸入中的非相關噪聲，參考輸入中的信號成分與自適應濾波器失調誤差而產生的信號失真、回響等情況。
  13. These initiatives include major developments of power plant flue gas desulphurization and low nox combustion system, novel monitoring systems and noise abatement of high voltage electrical substations

    完成香港一些環保及工程的先河建設。此等建設包括燃煤發電的脫硫裝置及低氧化氮燃燒系統，先進環境監測系統及變壓站消減噪音設施。
  14. We use a colorful noise to describe traffic flow and regard it as the uncontrolled input ( equaled to noise ). then we use the multi - rate sampling pi controller to eliminate the error caused by noise, and make the length of queue stabilize at the threshold. the availability of the strategies and stability of systems are proved by doing some analysis and simulation

    文中我們將一有色噪聲看作不可控輸入的擾動，採用基於pi的多采樣速率控制器以消除由此不可控輸入所造成的對系統輸出（交換節點緩沖區隊列長度）誤差的影響，使得系統輸出（隊列長度）穩定在閾值附近。
  15. Bits supplies the synchronous timing signal to these equipments inside the telecommunicationt building, such as dps, atm, no. 7, dxc, tm & adm in sdh, don and in etc. the related techniques are involved in the content of synchronization ne twork, timing distribution, the timing signal transportations x impairments etc. the second chapter tells the structure and the function of the building integrated timing system. the third chapter summarizes the digital synchronization network techniques, which emphasizes the basic concept of synchronization networks analyzes the necessity of building the synchronization network and introduces all kinds of synchronization methods. the fourth chapter represents the transportation of the synchronization signal

    本文第二章講述了通信樓綜合定時系統的構成及作用：第三章概述了數字同步網技術，著重描述了同步網的基本概念，分析了建立同步網的必要性，講述了各種同步方法；第四章闡述了同步定時信號的傳輸；第五章介紹了bits設備所支持的同步狀態消息；第六章、第七章為本文的重點，通過對時鐘信號建立數學模型，從理論上分析時鐘內部噪聲和相位瞬變產生時鐘定時信號損傷的原理，企圖尋找到更好地控制頻率漂移的方法。
  16. Therefore, aiming at the existent static and dynamic error of fcs sensor, the sensor characteristic compensation subunit is designed in the environment of labview using vi technique. the sensor signal disposal platform is also developed to realize the time domain measurement, frequency domain analysis, long - distance transfer and network release, etc. firstly, the static characteristic and nonlinear error of the sensor are analyzed

    為此，本文針對飛控系統傳感器存在的靜態和動態誤差，利用虛擬儀器技術在labview環境下設計了傳感器性能補償環節，開發了傳感器信號處理平臺，對信號進行時域測量、頻譜分析、小波消噪、遠程傳輸和網路發布等。
  17. Points out the key issues in noise control including the arrangement of sound absorber. noise transmission from machine room and duct and noise superposition

    摘要指出了全空氣空調系統噪聲控制應注意的幾個問題，如消聲器設置、空調機房及風管傳聲、噪聲疊加等。
  18. Complete h bridge driving circuit is achieved to drive motors in the hardware design of robot ' s driving and control system. it adopts pwm digital signal as its control signal. this kind of circuit has some advantages, such as economical, room saving, good resistance against noise

    在機器人驅動控制系統的硬體設計部分，實現了pwm全數字控制的全h橋式多電機驅動電路，它不但具有經濟、節約空間、抗噪能力強的優點，而且有效地消除了電機靜態摩擦死區，低速平穩性好。
  19. For the theoretical research of catalytic converter, this paper has discussed and analyzed the emission reduction principle, muffler noise suppression mechanism, substrate ' s physical & chemical performance and the durability, and concluded the theoretical principles for the application of exhaust emission control converter. especially in the research of noise suppression mechanism, a new conception of " equivalent design " for catalytic converter and muffler was revealed, which provided the theoretical basis for the optimization of exhaust noise suppression and engine power loss for light - duty vehicle

    在排氣凈化器的理論研究方面，本文主要從排氣凈化器的凈化機理、消聲機理、載體的物化性能以及使用壽命等方面進行了討論和分析，得出了排氣凈化器應用的理論依據，特別是在消聲機理的研究方面，本文提出了一種全新的凈化器與消聲器的等效結構概念，為輕型汽車排氣凈化消聲系統在降噪和發動機功耗方面的優化設計提供了理論基礎。
  20. At last, the experiment result proved the effectiveness of the spectrum rebuilding technology. the experiment result show that the wavelength detection accuracy is improved by an order of magnitude using the spectrum rebuilding technology compared with that obtained from direct peak search. some other schemes to enhance the accuracy are illustrated

    最後列舉了其它幾種提高測量精度的方案，包括關鍵器件可調諧濾波器的位置變化提高信噪比，調整探測器pinfet的輸出電壓的零點以提高a / d採集卡的利用率，以及採用系統參考消除系統誤差造成的波長漂移。
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