波包 的英文怎麼說

中文拼音 [bōbāo]
波包 英文
[物理學] wave packet; pack; package波包收縮 wave packet reduction
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  1. This thesis studies the law of affecting de - noise result and the selection of the threshold and the wavelet function, the combination of wavelet and fft in the fault diagnosis of turbine - generator sets : by the de - noise anslysis of blocks and sin signals, concludes : to blocks signals, usually adopts soft threshold ; the law of affecting de - noise result is when use wavelet auto - de - noise, with the increasing of decomposed level, the de - noise result becomes worse while the level blow the 3, when the level above 3 and when uses wavelet packet, it is the other way round ; the best de - noise methods of the signal is that uses " dbl " wavelet function, three level, soft and " rigrsure " threshold

    本文研究了分解層數對消噪結果影響的規律和閾值、小波函數的選取，結合小波分析與fft分析診斷汽輪發電機組的故障。通過對brocks和sin兩信號的分析，得出：對blocks信號進行分析一般採用軟閾值；分解層數對消噪結果影響的規律為用小波自動降噪在分解層數小於3時，隨著分解層數的增加，消噪結果變好，反之，則變差，用小波包降噪時隨著分解層數的增加，消噪效果變好；適宜選用dbl小波軟rigrsure閾值自動消噪。
  2. A multi - wavelet packets modulation based on ds - ss

    基於直接擴頻的多小波包調制
  3. Nonlinear adaptive equalizer based on wavelet packet transform

    基於小波包變換的非線性自適應均衡器演算法
  4. In all kinds of complicated network, oriented linking and unlinking, communication frequency resource is strained, and bandwith to transmitting audio frequency signal is too restricted, complicated and fluky, while audio frequency data exponential have been increased in the last several years. under the circumstances, based on the research of predecessor, this paper studies wavelet analysis ' s maths gist and practices significance on signal process, and puts forward a optimized wavelet package condensation arithmetic to process audio frequency data, which gives attention to coding efficiency, multirate and compression delay. simulation experiment on the arithmetic has been done by matlab

    針對無連接和面向連接的各種復雜網路環境下，通信頻帶資源緊張，音頻傳輸帶寬有限且復雜多變，而各種音頻數據又日益增多的局面，本文研究小波分析在信號處理方面的數學依據和在數據壓縮方面的實際意義，在前人不斷工作的基礎上，提出了一種優化小波包變換編碼方案用於音頻數據的壓縮演算法，兼考慮了編碼效率、多碼率和壓縮時延多個方面，並在matlab環境下做了模擬實驗，對各種音頻信號及多種小波函數做了模擬結果比較，實驗結果證明該演算法可以在一定計算復雜度下可以很好地改進壓縮效果，達到多碼率下實現實時編解碼的過程，在高速dsp晶元等硬體設備支持下，可以有效應用於實際復雜多變信源編碼。
  5. In fact, the deep overlapping of the wavepacket of particles implies new interactions which are technically called nonlinear ( in the sense of depending on powers of the wavefunctions bigger than one ), nonlocal ( in the sense that they are extended over the volume of wave - overlappings which cannot be evidently reduced to finite number of isolated points ), as well as nonpotential ( in the sense of being of contact / zero { range type for which the notion of action - at - a - distance potential has no mathematical or physical meaning of any type }

    事實上，粒子相互之間深深重疊的波包意味著新型的相互作用，技術上它可稱之為非線性意義為它們取決于波函數大於1次的幕而定，為非局部意義為它們的延伸超越了波重疊的體積，使其顯然無法再縮小到有限數孤立點，以及為非潛能意義為相互接觸零距離，在這種情況下一定距離下作用的潛勢不再有任何數學上或物理上的意義。
  6. To analyze the leucocytes image by using wavelet, we bring forward the idea of detecting leucocytes " karyon. through analyzing deeply, we realize the fast - time leucocytes image detection

    基於小波包分解的白細胞圖像處理，提出了細胞胞核提取的基本思想，進行了深入的理論研究和實際分析，實現對胞核邊緣快速而有效的提取。
  7. Radar echoes include echoes of lands, islands, all kinds of moving targets, racon, sart and sea, etc. arpa marks consist of fixed range marker, variable range marker, electronic bearing line, guard zone, heading - line, parallel index ( 4 navigation lines ), vector lines ( or pad ) and past track information of tracked target ships, marks of trial manoeuvres, ect

    雷達回波包括陸地、島嶼回波，各種活動目標的回波，雷康、 sart回波，海雜波等。 arpa符號包括包括固定距標圈、活動距標圈、電子方位線、警戒圈、船首線、 pi線、已錄取目標的矢量線以及歷史航跡（或pad ） 、試操船符號等。
  8. Application of wavelet packet decomposition and its energy spectrum on the fault diagnosis of reciprocation machinery

    小波包分解及其能量譜在發動機連桿軸承故障診斷中的應用
  9. Fast algorithms of both discrete and orthonormal wavelet and wavelet packet coefficient are diagrammatized to be introduced. daubechies wavelet is applied to help to discuss the application and test on signal filtering and noise reduction with the principle and threshold implementation ; the basic principle to pickup the fault characteristics is introduced mainly about the relations between the maximum module and signal saltation point and how to characterize the saltation point with lipschitz exponent

    展示了離散正交小波變換的mallat快速演算法和小波包系數分解的快速演算法；重點應用daubeches小波探討了小波變換在信號濾波去噪中的應用和實驗，闡述了其基本原理和通過閾值化處理實現濾波的具體方法；探討了用小波變換進行故障特徵提取的原理，說明了小波變換模極大值和信號突變點之間的關系以及怎樣用李氏指數來表徵突變點的性質。
  10. Experimental results show the obvious advantage and robustness of our methods. in this thesis, we study the algorithm of holographic stereogram display that can be implemented using cgh. we discuss the imaging process through capturing sequence parallax images, illuminating hologram by a plane wave creates the volume effect in the observer ' s eyes

    對基於計算機的三維全息成像中的光柵編、解碼理論進行了研究，在此基礎上，將小波變換方法應用到全息顯示中，建立新的變換模式下的光柵編、解碼演算法，計算中採用小波包分解方法，使全息條紋的計算更加快速、便捷。
  11. Introduction to wave mechanics : schroedinger ' s equation, wave functions, wave packets, probability amplitudes, stationary states, the heisenberg uncertainty principle, and zero - point energies

    介紹波動力學:薛丁格方程式，波方程式，波包，或然率，穩定態，海森堡不確定原理以及零點能量。
  12. Based on wavelet packet decomposition （ wpd ）, entropy threshold method （ etm ） has been put forward to reject the discrete spectrum interference （ dsi ） in on - line pd monitoring

    首次提出用於抑制局部放電在線監測中周期性窄帶干擾的小波包變換熵閾值法（ etm ） 。
  13. With the frequency division of wpd, etm uses shannon entropy as the criterion of determining whether or not dsi exist in certain wpd tree nodes and interference are suppressed successfully. lots of simulation data, lab data and on - site data have indicated that etm works with good efficiency, without pre - knowing of dsi information, extracts the phase of pd pulses accurately and can calibrate quantity of single type discharge

    大量的模擬數據、實驗室實測數據以及現場實測數據處理結果表明，小波包變換熵閾值法抑制干擾能力強，無需事先確定干擾的分佈，能夠準確檢測局部放電信號的相位信息，對于單一的放電類型，可以確定放電量的大小。
  14. The main research works of this dissertation are aimed to design of radar waveform and the application of wavelets in ultra - wide radar, including : the design of a new kind of hybrid radar and the research of time side - lobe suppression for pulse compression, the design of receiver r adio front end in data acquisition of ultra - wide band radar, the time delay estimation based on wavelets ( packet ) analysis

    本文主要進行雷達波形設計研究以及研究小波理論在超寬帶雷達中的應用，集中體現在以下幾個方面：一類新的組合雷達波形設計及壓縮脈沖時間旁瓣抑制技術研究、超寬帶雷達多通道數據採集方法中前端射頻接收部分的設計及研製、基於小波（包）方法的時延估計方法。
  15. Fast wavelet analysis algorithm based on oblique projection and mellin transform

    基於小波包變換的說話人語音特徵參數的提取
  16. The biorthogonality property for multivariate biorthogonal multiwavelet packets has been studied

    討論了高維不可分雙正交多小波包的雙正交性。
  17. The properties of the biorthogoanl multivariate matrix - valued wavelet packets are investigated and biorthogonality formulae are obtained by using the fourier transform and operator theoy

    運用傅立葉變換、積分變換和運算元理論，討論了它們的性質，得到關于高維矩陣值小波包的雙正交公式。
  18. The biorthogonality properties of the multiple vaector - valued wavelet packets in higher dimensions are investigated by virtue of functional analysis methods and fourier transform, and biorthogonality formulae regarding these wavelet packets are obtained

    運用泛函分析方法、傅立葉變換與積分變換，討論了它們的雙正交性，得到關于多元多重向量值小波包的雙正交公式。
  19. Wavelet packet transform is used to improve the snr of the incoherent integral radar echo, and bispectrum algorithm is used for signal detection in this united detecting algorithm, based on the modeling for the through - wall radar echo

    在對穿墻雷達回波信號建模的基礎上，用聯合演算法將非相干累積后的回波信號經過小波包變換提高信噪比，再用雙譜演算法進行信號檢測。
  20. The feature extraction in brain - computer interface based on best basis of wavelet packet

    腦機介面中基於小波包最優基的特徵抽取
分享友人
分享到 Line

分享到臉書