時間域分析 的英文怎麼說

中文拼音 [shíjiānyùfēnxī]
時間域分析 英文
time domain analysis （tda）
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 域 : 名詞（在一定疆界內的地方; 疆域） land within certain boundaries; territory; region
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 析 : Ⅰ動詞1. （分開; 散開） divide; separate 2. （分析） analyse; dissect; resolve Ⅱ名詞（姓氏） a surname
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  1. Modern control theory has arisen with the advent of high - speed digital computers and characterized by the state variable concept with emphasis on matrix algebra and with analysis and design principally in the time domain

    現代控制理論是隨著高速數字計算機的出現而產生的，主要特點是使用狀態變量的概念並強調矩陣代數和主要在時間域進行分析和設計。
  2. On the basis of experimental research, this thesis applies 2 - dimensional non - linear finite element method to the analysis of transient temperature field on the section by means of relatively high precision triangular element of six joints. when the temperature field is analyzed, finite element reseaus are divided in space field and finite difference reseaus are divided in time field, and then the program is compiled. the computing results are in good agreement with the test data

    在試驗研究的基礎上，本文採用精度較高的三角形六結點單元對構件截面二維非線性瞬態溫度場進行了有限元分析，即在空間域內採用有限元網格劃分，在時間域內採用有限差分網格劃分，據此編制了計算程序，計算結果與試驗數據符合較好，程序穩定性好，精度滿足要求。
  3. By analyzing the movement of maneuvering targets, the changing rule of angle vectors is summarized in the time field, and then some new vectors are introduced to modify the former residual error

    通過對機動目標運動分析，總結出角度向量在時間域中的變化規律，通過引入新的計算向量，對原演算法殘差計算進行了修正。
  4. There are six chapters in this paper. the concept of hetergensous databases and the importance of data exchange among hetergeneous databases are illustrated in the first chapter. the adopted technology of hetergeneous databases exchange is introduced in the second chapter. and the idea exploring xml implementing hetergeneous databases exchange is proposed. the development of xml and its application are reviewed and the relation of the logical structure of xml and dtd and schema is analyzed in the third chapter. the structure of the system exploring middleware tecknology implementing data exchange among hetergeneous databases is investigated in the fifth chapter. conclusion is given in the sisth chapter as a summary for this paper

    全文共分六章：第一章闡述了異構數據庫的概念以及異構數據庫間數據交換的重要性；第二章介紹了通常情況下異構數據庫間數據交換所採用的各種技術，在此基礎上提出了利用xml實現異構數據庫間數據交換的思想；第三章回顧了xml的發展歷程和其主要應用領域，分析了xml的邏輯構成以及dtd和schema的關系；第四章介紹了xml數據庫的基本概念和相關技術並對其使用方法進行了分析；第五章介紹了利用xml中間件技術實現異構數據庫間數據交換時的系統結構以及中間件的實現；第六章對全文進行了總結。
  5. Based on the above theory and methods, the main works of this thesis are lasted as follows : starting from the propagation law of partial coherent light and beam coherence - polarization ( bcp ) matrix approach, the properties of pgsm beams through both an axis - symmetric paraxial optical abcd system and an axis - unsymmetric one are studied. the analytical propagation equations of pgsm beams are derived, which enable us to study the propagation - induced polarization changes and irradiance distributions of pgsm beams through an axis - symmetric paraxial optical abcd system and an axis - unsymmetric one

    在此基礎上，本文進行的主要工作有：基於空間-時間域中互強度的傳輸理論和bcp矩陣處理方法，首次研究了pgsm光束通過對稱和非對稱abcd光學系統和光闌的傳輸變換特性，推導出了pgsm光束傳輸表達式，可以對pgsm光束偏振和光強的傳輸變化進行分析。
  6. 4 - intersection theory in point set topology is cited into time domain and topological relation between several temporal forms are analyzed in detail. besides, the paper uses temporal topological relation to describe cadastral changing process particularly

    把點集拓撲學中的四元組理論引用到了時間域中，詳細地分析了幾種時間形式之間的拓撲關系，用四元組描述的時態拓撲關系對地籍變更過程進行了詳細的描述。
  7. The computed flutter speeds are within 10 % of experimentally determined ones

    並在時間域內分析了高超音速氣動彈性的非線性。
  8. The frequency response of sampled - data control systems is studied in detail. the presently accepted definition of the frequency response and the relatedcomputation with time - domain and frequency - domain lifting techniques are analyzedand discussed, and it is pointed out that the frequency response thus obtained isindeed the frequency response of the lifted system. because the frequency responseof the system can not be preserved by lifting, the frequency response of the liftedsystem has nothing to do with the real frequency response of the sampled - datacontrol system

    對目前公認的頻率響應的定義和計算方法? ?時間域提升法和頻域提升法進行了分析，指出這些演算法所給出的頻率響應，實質上是提升系統的頻率響應，由於提升並不能保證頻率特性不變，所以提升系統的頻率響應也就不是采樣控制系統的真正的頻率響應。
  9. We discussed the main characteristic parameters of seismic kinesiology and dynamics of mine engineering fracture zone, including relative amplitude, phase time of wave crest, similarity factor, principal frequency band energy, 3 - d space time gradient and coherent coefficient et al., and puts forward the processing method of 3 - d seismic characteristic parameters about denoise - smoothing, generalization, correlation analysis, characteristic transformation ; and presents the method of pattern recognition of mine engineering fracture zone

    摘要本文從時間域、頻率域、三維空間域介紹了礦山工程裂隙破碎帶主要的地震運動學、動力學屬性參數，包括相對振幅、波峰相位時間、相似系數、主頻帶能量、二維空間時間梯度和相干系數等，提出了礦山工程裂隙破碎帶三維地震屬性的去噪平滑、歸一化、相關分析、特徵變換的處理方法以及裂隙破碎帶的模式識別原理與方法，並用實例說明了該方法的應用效果。
  10. It is also pointed out that if kanai power spectrum and penzien power spectrum is regarded envelope function in time domain, they are powerful and easy in viewpoint of envelope shape controlling ability. penzien power spectrum is even able to describe the envelope with two peaks like camel

    文中通過分析指出如果把「金井清譜」和「 penzien譜」等模型，看作是時間域中包線，這兩個模型的調節能力都很強，而且比較方便，其中「 penzien譜」模型可以用來表示具有兩個峰點的包線。
  11. On the basis of the analysis of the hypothesis in surface - consistent model, the conjugate gradient method is applied to decompose the seismic record in time domain in terms of the surface - consistent precondition and model

    摘要通過對地表一致性數學物理模型的前提條件進行剖析，合理地確定了反射振幅一致性校正模型，並依據該模型及其實現條件提出使用共軛梯度方法在時間域對地震記錄進行譜分解處理。
  12. This thesis mainly studies to a few methods about the fault diagnosis of the rolling bearing, among them there are traditional and classic signal analysis method - the hour area analytical method and the frequency domain analytical method. mainly introduced the signal of the modern analysis method - time sequence analysis method

    本論文主要研究了滾動軸承故障診斷的幾種方法，其中有傳統的也是經典的信號分析方法? ?時域分析法和頻域分析法;主要介紹了現代的信號分析法? ?時間序列分析法。
  13. As one of the best tools to analyze the nonstationary signals, it shows a good picture in the joint time - frequency domain and makes us know about the change of frequency along with the time clearly

    這種分析方法提供了時間域與頻率域的聯合分佈信息，清楚地為我們描述了信號頻率隨時間變化的關系。
  14. It uses the encouragement of step wave or other impulse current field source to produce the transition process field in earth. in the moment of shutting the power it produce the volute alternating electromagnetic field. from the abnormity of measuring the attenuation character of the second induction electromagnetic field, which produced by underground medium with time change, the conductive capacity and the position of the underground non - homogeneous substance can be analyzed

    瞬變電磁法（ transientelectromagneticmethod ）是一種時間域的電磁勘探方法，利用階躍波或其它脈沖電流場源激勵，在大地產生過渡過程場，斷電瞬間在大地中形成渦旋交變電磁場，測量這種由地下介質產生的二次感應電磁場隨時間變化的衰減特性，從測量得到的異常分析出地下不均勻體的導電性能和位置，從而達到解決地質問題的目的。
  15. The moving loads and reaction caused by rail are discrete by stepwise constant functions in time domain. the calculation of load effects is simply, but the calculation of the effect of react force is complicated. the calculation of the vibration caused by react force is discussed in detail, and compared with continuous model

    在時間域內，將移動荷載和其引起的軌道的響應利用階躍函數進行離散化，簡化了荷載作用的計算，但是由於反力的計算十分復雜，所以本文對由反力引起的振動的計算進行了詳細的分析，並與連續性模型進行了對比。
  16. Through the test of the separating sieve ' s and beams vibration acceleration, the dynamic bending moment, torque and shearing force as well as the analyze of each parameter by dividing rotation speed range from 300 r / min to 600 r / min of the main shaft, the change regularity of the vibration of the separating sieve, the vibration and the dynamic load on dangerous cross section with the change of rotation speed of the main shaft is obtained. research shows that there exits apparent relevance between the vibration as well as the dynamic load of the main beam and the vibration of the separating sieve. the vibration of the separating sieve mainly affects the composition of low frequency of the vibratio n of the main beam, appropriately amending the vibration acceleration of the separating sieve, the loading and vibration of the mam beam can be directly improved

    通過分檔測試主軸轉速在300 600r min范圍內分離篩與梁的振動加速度、梁所承受的動態彎矩、扭矩和剪力以及各參量的時頻域分析，得到了主軸轉速與分離篩振動、主梁的振動及其危險截面的動態載荷間的變化規律，研究表明梁的振動和其所承受的動載與分離篩的振動之間具有明顯的相關性，分離篩的振動主要影響梁振動的低頻成分，適度改善分離篩的振動加速度，可直接改善梁的負載和振動特性。
  17. Testing datas are gathered by using data picking box cras. a general dynamic model for analyzing characters of vibration system has also been developed according to the input and output applied on the testing system. identifications for structure modal parameters and frequency - spectrum characters have been carried out by calling the interface software developed unpon matlab software in both the time field and the frequency field. the structure modal parameters and frequency - spectrum characters have been accurately calculated

    利用cras數據採集箱的數據採集功能對系統的信號進行數據採集，通過介面軟體調用matlab軟體平臺，分別針對時間域和頻率域兩種研究方向，解決振動系統模態參數的辯識問題和結構的頻譜特性分析問題，得到系統的相干函數等頻譜特性，獲得模態參數，如模態頻率、阻尼等的精確解。
  18. Based on guyed mast fem model of 4 - node space cable element and space beam element, the method to analyze along - wind induced nonlinear oscillation in the time domain is established, which breaks the traditional analysis in the frequency domain using stochastic theory on the linearization premise. and the results of imitation analysis reflect the essential character of guyed mast

    在將桅桿結構離散為空間四節點索單元和空間梁單元的計算模型的基礎上，提出了桅桿結構順風向風振響應的非線性時域分析方法，突破了傳統的用隨機振動理論對桅桿結構進行頻域分析的方法，模擬分析結果表明能夠反映桅桿結構的基本特徵。
  19. The integrated method of time and frequency domain analysis and rbfnn is given for bearing fault diagnosis. through selecting representative parameters, feature space vector is constructed so the input dimension is reduced and fault classification information retained

    通過時頻域分析提取了有代表性的特徵參數，構建了特徵空間向量，既降低了網路的輸入維數，提高了網路的學習效率，又保留了故障分類信息。
  20. In case of high input dimension system model, taking norm of input vector as the input of wavelet network instead of using tensor product method to construct wavelet network, which could solve the problems of high computation and curse of dimensionality. in the selecting of specific wavelet basis, this thesis first gets initial wavelet basis collection according to spectrum analysis, then gives the least squares regression algorithm to optimize wavelet basis collection based on the least estimation error criteria, which could also initialize the model parameters and increase the speed of convergence

    對于具體的模型小波基函數選擇，本文首先對樣本數據進行時頻域分析，根據小波基函數時頻空間覆蓋樣本時頻空間的原則，在小波框架中選擇建模所用的函數集，然後根據估計誤差最小準則，給出最小二乘回歸優選演算法以進一步優化小波基函數集。
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