消聲系數 的英文怎麼說

中文拼音 [xiāoshēngxìshǔ]
消聲系數 英文
erasing factor
  • 消 : 動詞1 （消失） disappear; vanish 2 （使消失; 消除） eliminate; dispel; remove 3 （度過; 消遣） pa...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. On the basis of the study on the speech coder algorithms, paper describe an advanced method of developing dsp system software, and as the guidlines, we developed the programme of whole decoder unit. paper stress on analysis of the ecu in decoder unit. aiming at amr algorithms disadvantage of angularity of synthetical speech, paper study on the specutral extrapolation which apply to extrapolate reflect coefficient of track model to make error conceal processing of amr. at last paper analyze existing echo cancellation algorithms using on mobile communication system

    在此基礎上，描述了一種較為先進的大型dsp系統程序開發策略，並以此為指導思想，以美國ti公司c6000dsp開發平臺開發出了整個amr解碼器單元的系統程序。論文對amr解碼器的誤碼隱藏處理單元進行了重點分析，針對原有演算法合成語音自然度不好的缺點，論文研究了將譜外推法應用到amr演算法中外推出聲道模型反射系數參數進行誤碼消除處理。
  2. They use industry - standard sound system design software like leap - 5, lms and clio while our laboratory utilizes smaart test hardware and software. we constantly update and upgrade ourselves with the latest software and diagnostic technology in these fields. lax reassures you that our products are of the highest quality found in the world of professional audio merchandise

    其享譽全業的系統數字音頻產品，以全面系統專業的推廣模式，新穎強大的功能，簡便的操作和傑出的電聲水準，獲得消費者廣泛的好評，並逐步成為未來專業音響發展的主流。
  3. 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。
  4. In this paper matlab and vb are used to build a software which can predict absorption coefficient ' s of the underwater anechoic coatings from these analytical models. finally, some algorithm of the single parameter minimization, nonrestraint nonlinear minimization and restraint minimization in the optimization design theory are studied. the formulas of absorption coefficient of these analytical models are object functions

    本論文利用各種解析模型的聲學設計理論，使用matlab與vb軟體建立了一套水下消聲覆蓋層吸聲系數預報軟體，研究了最優化設計中單參數最小化、無約束非線性最小化和有約束最小化理論的一些演算法，利用現有模型的吸聲系數計算公式作為目標函數，初步優化了一些結構的材料參數。
  5. Atpresent body ware have style novel grade series of slippers, products since putting into themarket, because quality issteady, novel in design, rich in the intention, win the favorable comments of domestic and international vast consumer and customer, and has gained relatively high brand, reputation and market status in several dozen national areas, such as africa, russia, ukraine, czech, romania, philippine, middle east area, etc.

    目前主要產品有各種款式新穎等級系列拖鞋，產品自投入市場以來，因質量穩定，設計新穎，富有創意，博得國內外廣大消費者和客戶的好評，並在非洲俄羅斯烏克蘭捷克羅馬尼亞菲律賓中東地區等數十個國家地區贏得了較高的品牌聲譽和市場地位。
  6. The types of impedance transition and of composite resonant are now widely used, but the research in this area is not perfect. in this paper analytical means is used to study absorption coefficient ' s prediction models. diversified cavity structures and material parameters are analyzed in detail in order to the anechoic coalings " acoustical design

    現代應用的吸聲層基本是阻抗過渡結構或復合諧振吸聲結構，但我國在這一領域的研究卻不盡如人意，針對水下消聲覆蓋層的吸聲系數預報及聲學設計問題，本論文利用多種解析方法研究聲學模型，並對各種模型的聲腔結構和材料參數做了詳細的分析，為消聲層的聲學設計打下了良好的基礎。
  7. 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。
  8. ( 2 ) based on the wave equation in the acoustic fluid space and the theory of thin - wall structure, the non - symmetrical coupled structure - acoustic dynamic equation without damping is studied. the non - symmetric system of the finite element model for coupled structure - acoustic response is solved by the conjugate subspace iteration method

    由聲空間波動方程和薄板理論出發，對聲場?結構耦合系統的模態分析提出了有限元數值方法，採用共扼子空間迭代法對非對稱特徵方程進行處理，採用靜凝聚法消除質量矩陣的奇異性。
  9. In experimentation, the project adopts computer, data collection board, sensor and software. finally, the theory analsis is validated that the contact of noise elimination, velocity of flow, resistance loss

    在試驗中，採用了以計算機、數據採集卡、傳感器和處理軟體得到阻性消聲器的動態特性，從而驗證了阻性消聲器的消聲量、氣體流速和阻力損失之間聯系的理論分析。
  10. The total sound radiation power can be reduced by counteracting the adjoint coefficients of sound radiation modes of the first n radiation modes

    聲輻射模態伴隨系數與對應的輻射聲功率成正比。通過抵消前n階聲輻射模態伴隨系數，就可以使總聲功率降低。
  11. These systems operate on a wide variety of continuous time signals, which include speech, medical imaging, sonar, radar, electronic warfare, instrumentation, consumer electronics and telecommunications systems ( terrestrial and satellite ). one of the key to the success of these systems has been advances in the development of the font end of the electronic systems - analog - to - digital converters ( a / d ) which converter the continuous - time stimuli signals to discrete - time binary - coded form

    這些系統可廣泛地應用於處理連續時間信號，包括語音、醫學成像、聲、雷達、電子對戰、儀器、消費電器、遠程通訊（地面和衛星）等，而這些系統成功的關鍵因素之一就是電子系統的前端部件? ? a d取得了長足的進步（ a d把連續時間信號轉換成離散時間、二進制編碼的數字信號，便於后級精確的數字信號處理） 。
  12. We also select the microchip pic16f877 made by microchip co. ltd as a control chip to realize micro - computer control. this system use three separate channel to find out the " across the zero point " of each back - emf. the program use digital filter to wipe off the pwm interferences and the commutating interferences

    系統中採用三個獨立通道分別檢測無刷電機三相繞組的反電勢的各自過零點，同時在軟體中採用數字濾波以消除其它噪聲干擾，使檢測電路檢測到的反電勢過零點更加準確可靠，實現了對五位置傳感器直流無刷電機的數字控制。
  13. This paper gives a time - synchronization technique bases on gps time service signal which is used in broad band seismic recorder 。 by world coordination time offered by gps - - utc ( usno ), adjust local clock base on gps signal, gain high nicety clock signal, clock precision reachs 10 - 6 。 this clock is the time source of broad band seismic recorder, bring the whole seismic recorder works in same time base. 1pps time base with high stability can be used as in - phase, spring, time and start - stop of every collection mode, while the scale under second make a precise time mark to receive data of broad band seismic recorder

    針對接收機中gps信號的噪聲進行kalman濾波軟體處理， kalman濾波可以對gps信號與本地晶振時鐘的時差數據在大噪聲中進行平滑，在較短時間內估計出高精度的時差數據。系統消除了gps秒脈沖信號的ms級隨機誤差，把晶振秒脈沖的長期穩定度鎖定到gps信號的穩定度上;在gps信號失效時給出了可行措施，能夠保證在任何情況下產生一個穩定、高精度秒脈沖信號，誤差在1 s內。
  14. It includes the following aspects : adopting the partial differential equations and neighborhood average smoothing methods to reduce image noises. mapping the rgb three - color and gray scale histogram to study - 3 - the relationship of flame features and temperature field distribution. the methods of calculate important parameters about the average gray value, the flame area and the flame shape center coordinate are given

    採用圖象相加、偏微分、鄰域平均等方法來消除圖象噪聲；繪制圖象的r 、 g 、 b三色直方圖來研究火焰幅度特徵分佈與溫度分佈的關系；給出計算平均灰度、火焰面積大小、火焰形心坐標等重要參數的方法；用彩色等溫區或等溫線重構溫度場分佈。
  15. N 1998, we imported seven sets of b k system including bk2012, bk4251 and bk2636, with which can finish the measurement of all the parameter and acoustical test

    擁有bk2012聲頻分析儀bk4231聲級校準儀以及bk2636等全套bk傳聲器測量系統，與消聲室配合可進行傳聲器的全部參數測量及聲學試驗
  16. According to the mathematic modeling principle of physical problem, the error of lattice boltzmann model is analyzed in chapter 3. the nonlinear deviation term from the navier - stokes equation is given, and the main model coefficients, such as speed of sound, viscosity and so on, are verified by numerical computation, the results show that the lattice boltzmann method has second order precision in space and in time which satisfy the engineering application, whereas, the compressible effect ca n ' t be neglected along with mach number increasing, and must be reduced or eliminated

    其次，按照物理問題數學建模的原則，對格子法的誤差進行了分析，給出了格子bgk方程再現navier - stokes方程時的壓縮誤差項，並數值驗證了格子模型的聲速及粘性系數等相關參數的精度，表明格子模型盡管具有時空二階精度，能滿足工程計算的要求，但隨著mach數增大，壓縮誤差逐漸成為主要誤差，必須予以消除。
  17. The process of noise elimination based on wavelet is to eliminate disturbed noise of enterprise signals which produced when it bored, conveyed and processed. the elimination noise process is to use the valve filter method to filter the high frequency coefficient, and reconstruct the low frequency and high frequency which noise have been eliminated, the signal after noise eliminated is more glossy and it is helpful to do the trend forecast it can analyze and do trend forecast to the total trend, periodic and sudden change of signals when do the trend forecast to the enterprise signals

    基於小波方法對企業數據信號展開的消噪過程，主要是對經濟數據在生成、傳遞和加工過程中產生的干擾噪聲進行消除，消噪的方法主要是採用高頻系數的閥值過濾法，通過對低頻和過濾后的高頻的重構可以還原出消噪后的信號，該信號的光滑性更好從而有益於對企業數據信號進行進一步的趨勢預測。
  18. One is using the autocorrelation function to detect the speech terminal, the other is using the coefficients based on the one - sided autocorrelation sequence to replace the original speech signal and then extract the speech feature to recognize. isolated word recognition experiment based on dtw shows : it can reduce the disturbance of noise effectively and get the high recognition rate. it is of great advantage to apply when snr signal to noise rate is low

    對含噪語音在自相關域上進行處理，以其自相關函數值為參數進行端點檢測，以基於單邊自相關序列的lpc倒譜系數作為語音的特徵參數進行語音識別，實驗表明：這種方法較好地消除了噪聲對語音信號的干擾，並獲得了較高的識別率。
  19. We fulfilled image enhancement with wavelet coefficient to denoise after we decomposed the image by wavelet. 4

    在對圖像進行小波分解的基礎上，利用小波系數實現圖像增強處理，消除噪聲。
  20. The keys to the development trend of cpcs ? electronic - electric cpcs are the control method and control law. in this study, a fuzzy logic control was proposed to accomplish the electronic - electric control of the sapc. a fir digital filter is applied after compared with several other digital filters to deal with the fluctuating pressure signal

    針對壓力信號在採集過程中出現波動較大的問題，本文在比較了多種數字濾波方法后，選擇了fir濾波方法對采樣數據進行處理，消除了數據採集中的高頻噪聲，從而實現對采樣數據的平滑處理，為控制系統的實現打下基礎。
分享友人
分享到 Line

分享到臉書