noise analysis method 中文意思是什麼

noise analysis method 解釋
噪聲分析法
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  • analysis : n. （pl. -ses ）1. 分解，分析；【數學】解析。2. 梗概，要略。3. 〈美國〉用精神分析法治療（＝ psychoanalysis）。
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box

    綜合介紹了邊界元法在聲輻射問題上的理論及應用；並給出了運用邊界元法分析軟體求解振動聲輻射問題的過程。闡述了有限元法和邊界元法的耦合理論及組合分析方法，並以封閉鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序，並模擬了通過組合方法分析封閉鼓形薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據，實現聲音的可聽化，隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。
  2. Klingelnberg cyclo - palloid spiral bevel gear has construction cramped, excellent transmission quality, low noise and loaded vehavior, it ’ s the main form of gear drives in the bevel gear ’ s technology field. it ’ s cyclo - palloid system, two - part cutter head and high power gears ( hpg ), has certain technology particular than gleason spiral bevel gear. systemic analysing the manufacture principle and meshing principle of klingelnberg cyclo - palloid spiral bevel gear, for accomplishing design theory and analysis method, for enhancement manufacture precision and loaded behavior, for promotion and applied in engineering field, have important theory value and actuality meaning. main work of the paper is tooth form emulation and tooth contact analyse of klingelnberg cyclo - palloid spiral bevel gear

    克林貝格（ klingelnberg ）延伸外擺線齒錐齒輪結構緊湊、傳動性能優良、噪聲小、承載能力高，是錐齒輪技術發展的主要齒制，其連續切削法，雙層刀盤技術和硬齒面刮削法（ hpg ）相對于格利森制齒輪有一定的技術特點。系統的分析這種齒輪的加工原理和嚙合機理，對完善其設計理論和分析方法，提高加工精度和承載能力，在工程中推廣應用具有重要的理論價值和實際意義。
  3. The dissertation discusses the characteristics of the human auditory system and its describable method and with this understanding establishes the objective method based on subjective perception. it is clarified that the person ' s evaluation on noise is not only " subjective " and qualitative analysis, but also quantitative analysis based on stable foundations. the availability and some problems of these methods of sound quality are illustrated with some concrete emulational examples

    論文詳細討論了人耳聽覺的一般特性及其描述方法，以其為基礎確立聲質量的基於主觀感覺的客觀評價方法，說明了人對噪聲的評價並不僅僅只是「主觀」的、定性的東西，而是可以建立在堅實基礎上來進行定量分析的，並通過具體算例說明聲質量方法的有效性和存在的問題。
  4. ~ ( 252 ) c _ f - source - driven neutron noise analysis method is a way of measuring and analyzing the reactivity of reactor or subcritical reactor, which detects subcritical neutron multiplication factor, prompt neutron decay constant, and so on

    ~ （ 252 ） c _ f源驅動噪聲分析法是一種測量、分析反應堆和次臨界系統的快速反應性的方法，可作為臨界安全的瞬時檢測方法。
  5. After analysising three existed methods for phase difference correction on discrete spectrum, it is recommended to correct the spectrum containing small noise in engineer practice by the first phase difference correcting method ( performing fft analysis on two continuous original sequence ) with harming window

    綜合分析現有三種離散頻譜相位差校正方法，推薦在小噪聲工程實際中加hanning窗的第一種相位差法（采連續兩段信號作相同點數fft的相位差校正法）進行校正。
  6. The main purpose is applying the statistical energy analysis method to forecast the high frequency wheel / rail noise

    本文的主要目的是運用統計能量分析方法對輪軌高頻振動噪聲進行預測。
  7. This dissertation only considers the signal ’ s distortion by interconnect, such as delay, reflection, discontinuity of microstrip, crosstalk and simultaneous switching noise, and so on. nowadays, there are some simulation software in pcb level, but they are lack of the well ability of modeling. in order to simulate the interconnect accurately, we have to make use of three - dimension full wave analysis method, whose disadvantage is low speed in computing, but is competent for developing rules in high - speed designs

    目前也有一些針對這些噪聲的高速pcb板級模擬軟體，但它們都缺乏詳盡的建模能力，特別是當頻率逐漸提高和電路板日益復雜后，更是顯得無能為力，要精確地對互連結構進行分析，三維全波模擬器似乎不可缺少，其缺點就是速度慢，對整板模擬很難實現，但非常適用於規則開發，而這正好是本文除了建模與模擬方法研究外另一個重點。
  8. Aimed at the current situation of research on the vehicle interior noise, this thesis conducts a conclusive analysis on the category of the source of vehicle noise and the noise controlling method

    本文針對國內外汽車車內噪聲的研究現狀，對汽車噪聲的分類以及噪聲控制方法進行總結。
  9. In this paper, the main work includes : ( 1 ) through the detailed analysis of the mechanism of pcnn, we point out that the behaviors of pcnn actually means the reorganization of input information, and finally two methods ( including method for salt & pepper noise and method for gaussian noise ) for image noise removal based on pcnn are presented

    本文的工作主要有： （ 1 ）通過對pcnn工作機理和運行行為的深入分析，揭示了pcnn的運行行為實際上是在對網路輸入信息進行重新組織，並在此基礎上給出了利用pcnn實現圖像濾波（包括圖像椒鹽噪聲和圖像高斯噪聲濾波）的演算法。
  10. Identification of loader cab ' s noise sources based on partial coherence analysis method

    基於偏相干分析法的裝載機司機室噪聲源識別
  11. Traffic noise analysis of signalized intersection with simulation method

    利用模擬方法進行信號燈控制交叉口道路交通噪聲特性分析
  12. Considering the special function of wavelet technology in gross error detection and noise reduction, the paper presents, in improved time - series analysis method based on wavelet noises reduction focused on the combination of wavelet technology and traditional data processing technology, the application of this method for gps deformation monitoring is demonstrated by a practical example

    摘要考慮到小波技術在粗差探測、消噪方面有特殊的作用，本文結合實際算例，把小波分析與傳統數據處理技術結合作為研究對象，提出一種基於小波消噪的時序分析改進法。
  13. The cyclic estimation approaches of chirp signals in additive nose or multiplicative noise are proposed, it presents a way for the parameters estimation of zero mean amplitude chirp signals. the estimation performances in the additive noise or multiplicative noise are analyzed by the first order perturbation analysis method, and the error variance expressions of the parameters estimation under large samples are derived

    針對加性噪聲情況及存在乘性噪聲的情況，提出了線性調頻信號參數的循環平穩估計方法，解決了零均值乘性噪聲的信號參數估計問題，並採用一階擾動分析方法，對兩種噪聲情況下的估計性能進行了分析，推導出了各參數的估計誤差方差公式。
  14. This dissertation aims at the problem of the noise of over length truck falling short of the lately country standard, and makes research on the reason of the gear - box vibrating noise. by combine using finite element analysis and experimental analysis method, the dissertation directly researches the vibrating noise of the gear - box, and takes some availability measures to control vibrating noise from the box surface. by improving the box to reduce its noise, and validate the effect

    本文針對一汽超長載重汽車噪聲指標不符合國家最新標準的實際問題，對其變速箱振動噪聲的產生機理進行深入研究，應用有限元分析與實驗分析相結合的方法直接對其進行振動和噪聲分析，在此基礎上提出控制其振動噪聲的有效措施，並通過對其箱體的改進設計，最終達到減振降噪的目的。
  15. Firstly, the outputs of the infrared sensors are analog signals, which can be disturbed by noise in optical path and circuit. it has a low precision and stability when using traditional signal processing method, so in this paper a novel spectrum analysis method based on the fft is discussed and some methods are taken to rectify errors from the limitation of the fft

    首先，由於紅外傳感器的光電轉換在光路和電路中都會受到噪聲的影響，針對採用傳統信號處理方法帶來的測量精度低、可靠性差這一問題，本文採用快速傅立葉變換和周期圖法的經典譜分析方法對傳感器信號進行處理，並對產生的誤差進行了分析和校正。
  16. Footprint image noise smoothing method based on multi - dimensional analysis

    基於多尺度分析的足跡圖像濾波方法
  17. According to mechanism of low - frequency broadband noise of the propeller, theoretical analysis method is given and numerical calculation of the noise is worked out as well

    在分析螺旋槳低頻寬帶噪聲成因的基礎上得到了理論計算方法，並作了數值計算。
  18. Radiation noise analysis using the results of power flow finite element method

    功率流有限元法結果分析輻射噪聲
  19. On the basis of the hardware of the detect system which uses ~ ( 252 ) c _ f - source - driven neutron noise analysis method, i designed the emulation platform of the apsd estimate, as an important part of the whole detect system

    在~ （ 252 ） c _ f源驅動噪聲分析法的測試系統硬體平臺基礎上，本文首先設計和實現了功率譜估計這一部分的模擬硬體平臺。
  20. ( 3 ) study on the control mechanism of structure noise radiated from rotary machines, we build a common model of rotary machine structure noise analysis relied on the general characters of rotary machines. based on this model, we analyzed various influence factors to structure radiant noise using the union of revolution and numerical calculation method. we found that the joint stiffness between the rotor and the frame is the most sensitive parameter of structure radiant noise by calculating and analyzing

    在旋轉機械結構噪聲控制方面，根據旋轉機械的基本特徵，建立了旋轉機械結構噪聲分析的簡化模型，基於該模型利用解析與數值計算相結合的方法對結構噪聲的各種影響因素進行了分析，通過計算分析發現，轉子與機體的連接剛度是機體結構聲的最敏感參數，同時各參數對結構噪聲的影響具有互補性。
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