wavelet packet decomposition 中文意思是什麼

wavelet packet decomposition 解釋
小波包分解
  • wavelet : 小浪；【物理學】子波，弱波，小波，基元波，成分波。
  • packet : n 1 包裹；小件行李；（郵件等的）一捆；小批；袋。2 （定期）郵船，班輪。3 〈英俚〉（打賭等中輸贏的...
  • decomposition : n. 1. 分解，分析，溶解，還原（作用）。2. 腐朽，解體。
  1. 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
  2. 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 ） 。
  3. A dual decomposition algorithm for turbulent wake flows after blunt bodies using the wavelet packet method

    鈍體尾流的雙重小波包分解
  4. This paper presented a novel denoising algorithm based on wavelet packet decomposition in order to wipe off noise mixed with texture lying in high frequency

    為了有效去除與紋理信息同處于高頻的噪聲，基於小波包分解提出了一種新穎的去噪方法。
  5. 4 different types ’ features were generated, namely ar model parameters, power spectral frequency band intensity, energy for wavelet packet decomposition, wavelet packet entropy. every type of features were extracted respectively using pca and ica method and classified using linear neural network, knn and bp network

    建立了ar模型參數、功率譜估計頻帶強度、小波包分解能量比率、小波包熵四種特徵，分別使用pca與ica進行特徵提取，採用線性神經網路、 k -緊鄰法、 bp神經網路四種分類器進行分類。
  6. De - noising of diesel vibration signal using wavelet packet and singular value decomposition

    柴油機振動信號的小波包奇異值降噪
  7. In this paper, a new way of real - time damage detection method was proposed according to the high speed working situation of the composite flywheels for energy storage, and a suit of equipment was developed to test the composite samples with piezoelectric disc built - in, the response waves before and after the damage occurred were recorded to the computer. on the base of traditional spectrum analysis of signal recorded, the wavelet analysis was introduced and the program in matlab language was made. with the wavelet packet decomposition of the signal, the relations between the change of response signals and damage characters were gotten, a database for damage recognition was created

    本文結合儲能復合材料飛輪高速旋轉的工作特點，提出了一種在線檢測飛輪轉子損傷的方法，自主設計一套實驗裝置對模擬各種損傷的的試樣進行了測試，試樣損傷前後的響應信號被採集后存入計算機中；在對採集信號進行傳統的頻譜分析的基礎上，引入了先進的小波分析理論，利用matlab語言編寫程序，對信號進行小波分解，得到了信號變化和損傷特徵之間的關系，建立了一個識別飛輪損傷的數據庫；小波包分解得到信號對比圖和特徵向量，可以有效判定材料內部有無損傷和損傷的程度，結合頻譜分析等，可一定程度上判定損傷的類型，為儲能飛輪的安全運轉和智能化運作提供了決策依據。
  8. The method directly executes wavelet packet decomposition of handwriting texture using wavelet packet basis db6 at scaling 3 in 2d space, then reconstructs the decomposition coefficient of 15 wavelet packet best basis which are took by shannon entropy cost function

    該方法直接在二維空間上由db6小波包基對筆跡紋理實施3尺度小波包分解，再在由以香農熵為代價函數提取得到的15個小波包最好基處對分解系數實行重構。
  9. ( 3 ) aiming at the deficiency of present methods of network traffic anomaly, this paper proposes a new scale - adaptive detection mechanism. by means of wavelet packet decomposition, our method has the same detective ability to middle and high frequency as well as low frequency anomaly ; by means of reconstruct the wavelet packet

    該方法利用層疊模型從本質上體現流量性質的特點，選擇用多分辨分析（ mra ）和小波變換模極大（ wtmm ）估計層疊模型的判定條件作為檢測依據，通過對擬合曲線誤差的估計來判定異常的發生。
  10. The rolling bearing fault diagnosis based on wavelet packet decomposition

    基於小波包分析的滾動軸承故障診斷
  11. Wavelet packet decomposition

    小波包分解
  12. The damage identification method of data fusion based on wavelet packet decomposition

    基於小波包分解的數據融合損傷識別方法
  13. Optimizing algorithm in determining the number of signals using wavelet packet decomposition

    一種信號數目估計的小波包分解優化演算法
  14. Wavelet packet decomposition based on entropy threshold for white - noise rejection in pd signal

    基於門限值小波包變換抑制局部放電白噪干擾
  15. Fault recognition of automotive transmission based on wavelet packet decomposition and neural network

    小波包分解與神經網路相結合的變速箱齒輪故障識別
  16. Wavelet packet transform based adaptive multiuser detection algorithm converges faster than wavelet transform based adaptive multiuser detection algorithm. they also have the better performance. simulation results also reveal that the algorithm convergence relates to wavelet base and decomposition

    基於小波變換的自適應多用戶檢測演算法（ wt - mud ）和傳統的lms自適應多用戶檢測演算法相比， wt - mud演算法收斂速度加快;基於小波包變換的自適應
  17. Based on the study of wavelet analysis theories and on the analysis of gear transmission vibration, continuous wavelet transform multi - resolution analysis and wavelet packet decomposition are respectively studied and applied in extracting the feature vectors of transmission gear extraction methods, then these three feature extraction methods are compared and useful conclusions yield

    本文應用小波分析方法，針對變速箱齒輪運行過程中的振動信號的特點，研究了基於連續小波變換、小波分析的多分辨分析和小波包分解的變速箱齒輪振動信號的特徵向量提取方法，並將這些方法進行比較，得到了有用的結論。
  18. This method can eliminate the white noise of pd, the tiny pd signal also can be preserved, the distortion is very little and it is suitable the site signal processing. wavelet packet has better decomposition character than wavelet, and can more validly decompose the frequency space of signal

    該方法能夠很好的剔除白噪，而且把局放信號中較微弱的信號也能保存下來，去噪后的局放波形畸變小，適合現場局放信號的處理。
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