correlation dimension 中文意思是什麼

correlation dimension 解釋
關聯維數
  • correlation : n. 相互關系，相關（性）；對比；交互作用；【數學】對射，異射。 correlation index 關聯指數。 correlation mineral 對比礦物。
  • dimension : n 1 尺寸。2 【數學】次元，度（數），維（數）。3 【物理學】因次，量網。4 〈pl 〉容積；面積；大小，...
  1. The specific research methods are listed : 1. matched filter taking the max ouput snr as the best rule correlates nonstop divided signal and divided echo to detect low snr target signal. then all one dimension divided correlation outs and done fft in portrait to leach interferential signal such as static or low rate mussy meaves, many pathway echo and so on and to take target ' s time difference and doppler frequency that combine parameters that target ' s direction taken from antenna and so on to implement target ' s orientation and tracking

    具體研究方法如下： 1 、採用以輸出信噪比最大為準則的最佳匹配濾波器來對分段的參考和目標信號作相關處理來檢測低信噪比目標信號，然後對一維分段相關輸出組作縱向傅立葉變換來濾除靜態或低速的雜波、多徑回波等干擾信號，並提取目標的時差和多普勒頻率，再結合由天線獲得的目標方向等參數，就可以實現目標的定位和跟蹤。
  2. The fourth chapter " reseach on fractai structure of stock price " anaiyzed the fractai structure of stock price, deduced the investment function, caiculated the hurst exponent, 3 correlation dimension, and max lyaponov exponent, analyzed the self - similarity, long range dependence, circulation period of stock price and sensitivity of stock price to the initial value, suggested took the exponent characterize fractal instead of variance as instrument to measure risk

    第四章分析並檢驗了股票市場的分形混沌特徵，推導了投資函數，計算了表徵股票市場分形特徵的hurst指數，關聯維和最大lyapunov指數，分析了股票價格的自相似性、長期記憶和循環周期，分析了股票價格的波動對初始條件的敏感性，提出中國股票市場具有混沌分形的特性，用傳統的方差法度量股票風險是無效的，必須使用混沌分析能夠理論來刻畫股票收益的風險，建立收益模型。
  3. The results indicate that the correlation dimension is larger when the brain is under the conditions of calculating, remembering and associating with eyes closed than passive eyes closed ; the correlation dimension is larger in left brain than right under the condition of reasoning with eyes open

    分析結果表明：在閉眼情況下，計算、記憶和聯想狀態的分數維值明顯提高；睜眼情況下，推理狀態的左腦半區分數維值顯著增加，並且左右腦半區的分數維值呈現出明顯的對稱性，即左腦半區分數維值大於右腦半區的分數維值。
  4. Time delay was chosen by using autocorrelation function method and mutual information method, while reconstruct dimension was obtained by g - p saturation correlation dimension method and false nearest neighbor percentage method. furthermore, initial neighborhood radius was computed by the estimated noise level based on the g - p saturation correlation dimension method. secondly, a noise reduction of the inflow time series was carried out by chaotic nonlinear local projection noise reduction method, and the effects on noise to chaotic characteristics and state reconstruction parameters were discussed

    採用g - p關聯維法計算關聯維數； rosenstein法和kantz法計算最大lyapunov指數；重構相空間的延遲時間採用了自相關函數法和互信息量法；嵌入維數採用了飽和關聯維法和偽鄰近點法；初始領域半徑的選取採用了基於g - p關聯維法的噪聲水平的初始估計方法。
  5. In this paper, the chaotic nonlinear time series method was applied to improve hydrologic inflow data analysis. firstly, chaotic characteristics, i. e., fractal dimension and maximal lyapuonv exponent, and state space parameters, including time delay, reconstruct dimension and neighborhood radius, were calculated respectively. fractal dimension was estimated by g - p saturation correlation dimension method, and maximal lyapuonv exponent was calculated by two methods, namely, rosenstein method and kantz method

    文中利用沙溪口的日流量時間序列，研究了水文混沌非線性時間序列的特徵量，即分維數和最大lyapunov指數的計算，以及相空間重構參數，即時間延遲、嵌入維數和領域搜索半徑的選取。
  6. 3. feature extraction of time series based on chaos theory is explored, which include the problem of temporal correlation in correlation dimension method, the robust method to evaluate the maximum lyapunov exponents, the extraction of generalised dimensions and the evaluation of h2 entropy of time series

    研究了時間序列的混沌特徵參數提取方法。包括關聯維數演算法中的時間相關、最大lyapunov指數的穩健估計演算法以及廣義維數和時間序列熵h _ 2的估計問題。
  7. The chaotic invariants of measured time series of dams such as correlation dimension, the lyapunov exponent and the kolmogorov entropy, are calculated

    對大壩觀測時間序列進行了相空間重構，計算其混沌特徵量，即吸引子維數（關聯維數） 、 lyapunov指數和kolmogorov熵。
  8. The extraction test to the different class signals tell us that the correlation dimension and generalised dimensions may effectively involve the class information of different ships, otherwise the h2 entropy is difficult to classify the targets

    通過對不同類別信號的特徵提取表明，關聯維數和廣義維數能有效地代表不同類別的艦船特徵，而h _ 2熵特徵並不明顯。
  9. We reconstructed the phase space and calculated the nonlinear parameters such as correlation dimension, the largest lyapunov exponent, approximate entropy, and l - z complexity of the data. it can be conclud from the results that the reconstruction of heart beat rate signal is strange, its correlation dimension is between 5 to 7 and have the character of fractal dimension, its largest lyapunov exponent is larger than zero, its approximate entropy and l - z complexity are obviously differ from noise. we can draw a conclusion from all above : the heart beat rate signal is n ' t simple noise, it is high dimensional chaos obeys certain dynamical law

    我們還對信號進行了相空間重構，計算了信號的關聯維數、最大lyapunov指數、近似熵和復雜度這幾個非線性特徵量，我們發現，心率信號的吸引子是奇怪吸引子，關聯維數介於5到7之間，具有分維的特徵，其最大lyapunov指數大於0 ，其近似熵值和復雜度值明顯區別于噪聲，這說明心率信號不是隨機噪聲，它是服從確定性動力學規律的高維混沌信號。
  10. At first, construct ten sets of surrogate data for each emg data, then calculate the correlation dimension ( dcorr ), correlation time, maximum lyapunov exponent ( a, ), l - z complexity and approximate entropy ( apen ) of both the original emg data and surrogate data, and then compare them

    構造這四例肌電信號的代替數據（各十組） ，分別計算原數據及其代替數據的關聯維、關聯時間、最大李雅普諾夫指數、 l - z復雜度和近似熵，我們發現，四例原數據的以上所有特徵量都與各自所對應的十組代替數據存在明顯差別。
  11. As an example, the time series of china composite stock index is considered firstly, the distribution of five day ' s return on china composite stock index is studied. secondly, based on the r / s analysis hurst exponent is worked out and determination detecting can be done. lastly, the topological characteristics such as correlation dimension and maximum lyapunov exponent are extracted from time series

    作為例子，本文對中國股票指數時間序列做了實證分析，首先研究了中國股票指數的五天收益率的分佈規律，然後運用重標極差分析方法計算出赫斯特指數，並以此為基礎進行確定性檢驗，最後在相空間重構的基礎上提取吸引子的拓撲特徵指數。
  12. We also introduced the fractal theory to study fitness landscapes, and analyzed the complexity of fitness landscapes by computing the correlation dimension based on random walk fitness time series

    提出利用分形理論來分析遺傳演算法適應值曲面，並提出基於隨機遊走模型對適應值曲面進行關聯維數測試，以反映適應值曲面的復雜程度。
  13. General dimension and its chart were calculated and painted based on general dimension. box dimension, information dimension and correlation dimension can be extracted from general dimension series

    以廣義維數為基礎，計算和繪制了廣義維數及其譜圖，從廣義維數中可提取盒維數、信息維數、關聯維數。
  14. Counting correlation dimension of time series of composite price index of shanghai stock exchange by g - p means, analysis testifies chaos progress of the index fluctuation progress, sequentially validates chaos phenomena being in chinese capital market

    利用g ? p法計算了上海證券交易所的上證綜合指數的時間序列的關聯維，通過分析證明了其指數波動過程的混沌過程，從而也驗證了中國資本市場存在混沌現象。
  15. Correlation dimension of pressure fluctuation in gas - liquid - solid three phase co - current up - flow system

    固三相流中壓力波動信號的分維估算
  16. Application of correlation dimension in fan fault diagnosis based on wavelet coefficient region relativity

    基於小波系數區域相關性的關聯維數在風機故障診斷中的應用
  17. In addition, the author proved and discussed through the relations of the length - radius dimension model, spatial correlation dimension model, transportation pattern and urban spatial shape

    此外，借用長度?半徑維數模型與關聯維數模型對交通方式與城市空間形態之間的關系進行了論證和探討。
  18. In this paper, the correlation dimension is taken as the chaos identification evidence and the method is used to see whether the given fault gear signal has chaos characteristics

    應用替代數據法，以關聯維數作為混沌判據，對故障齒輪信號進行了混沌特性判別。
  19. Method of computing correlation dimension based on wavelet packet transform

    一種基於小波包變換的關聯維數計算方法
  20. Correlation dimension and information entropy for the time series is calculated at same time with a visual basic program which adapt to deal with chaotic problems

    本文編制的同時回歸出時間序列的關聯維及信息熵的vb程序，對處理混沌問題具有一定的通用性。
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