kurtosis 中文意思是什麼

kurtosis 解釋
n. 名詞 【統計學】峭度。
kurtosis of frequency curve 頻率曲線峰態。

  1. When we measure the kurtosis of a distribution, we are measuring its peakedness.

    度量一條頻率分佈曲線的尖削度就是度量其頂部的峰態。
  2. A new kurtosis loose switching algorithms for blind source separation

    一種峭度寬松開關盲分離演算法
  3. Analytical propagation expressions for kurtosis parameter of flat - topped beams

    參數的解析傳輸方程
  4. Skewness and kurtosis statistics for testing normality in ev model

    帶有誤差變量的偏度和峰度正態性檢驗
  5. Coefficient of kurtosis

    峰度系數
  6. The coefficients of skewness ( cs ) and kurtosis ( ce ) have the feature of cs < 0, ce

    縱向脈動速度概率密度分佈的偏態系數0 0 ，峰態系數ce 。
  7. A logarithm - kurtosis based complex algorithm for blind signal extraction and blind beamforming

    基於峰度自然對數最大化的信號盲分揀演算法和盲波束形成
  8. An approach named component analysis based on kurtosis ( cabk ) was used to identify the overlapped peaks

    摘要基於峭度的組分分析方法用來解析重疊峰。
  9. 6 an algorithm of kurtosis signal - to - noise ratio ( ksnr ) based the mot - radiated noise polyspectrum feature extraction is presented

    6提出了基於峰度信噪比的水下h標輻射噪聲的多譜特徵提取演算法。
  10. This paper proposes an algorithm for fetal electrocardiogram ( fecg ) extraction, which is based on joint maximization of kurtosis and autocorrelation

    摘要針對胎兒心電圖提取問題，提出了一種基於峭度和自相關函數聯合最大化的演算法。
  11. As regards sk ( bias angle ) and kg ( kurtosis ) values, the fluvio - lacustrine facies or palaeosols increases considerably compared with the aeolian sands. the former displays positive bias and the latter often approximately symmetrical distribution with only a minority negative bias

    就sk和kg變化而言，河湖相或古土壤值較之風成砂明顯增高，前者呈正偏，後者常常表現近對稱分佈，僅少數呈負偏。
  12. One is the bss based on kernel density estimation ( kde ) and genetic algorithm ( ga ), the other is the blind deconvolution based on high order cross cumulants and ga. without nlf, the performance of separation in both algorithms is independent with the kurtosis of the sources

    兩種演算法的實現無需引入非線性函數，因此都與源信號的峭度性質無關;另外，選取全局搜索的遺傳演算法進行尋優，避免了梯度法搜索的局部性，使得演算法均能收斂到問題的全局最優解。
  13. The automatic identification of the modulation types has been applied to many fields such as source identification, interference identification, radio interception, - electronic countermeasures, etc. the modulation recognizer based on the decision - theoretic approach and the constellation diagram is proposed and the signal ' s kurtosis is used as the indicator to differentiate the analogue modulation from the digital modulation

    通信信號調制類型的自動識別廣泛應用於信號確認、干擾辨識、無線電偵聽、電子對抗和信號監測等領域。本文提出基於決策論與星座圖的綜合調制識別器，使用信號的峰度區分調制類型是模擬調制還是數字調制。
  14. We evaluate the statistical visibility of information hiding algorithms based on the coefficient of kurtosis, differential entropy, goodness of fit test and kullback entropy. on these bases some methodologies are suggested to defend against statistical steganalysis

    重點研究了含密序列統計可見性的定量評估，提出了基於峰度系數和微分墑的偏態評估、基於擬和優度檢驗的統計可見性評估和基於鑒別信息的統計可見性評估。
  15. The resuts showed that the annual average temperature had an increasing trend ; summer, autumn and winter average temperature also had an increasing trend and the amplitude in winter was bigger ; the change of standard deviation and coefficient of variation were acute during winter ; the coefficients was bigger ; the change of standard deviation and coefficient of variation were acute during winter ; the coefficients of skewness were positive value during summer and autumn ; the kurtosis coefficients were bigger during winter

    得出如下結論：和田地區年氣溫有增加的趨勢；夏季、秋季、冬季氣溫也有增加的趨勢且冬季氣溫值增幅較大；標準差及變差系數都是冬季變化較為劇烈；偏度系數在夏季及秋季為正值；峰度系數值在冬季較大。
  16. The following is the studying process on the problem. first of all, we overview the methods of the option pricing and the compute, then make the tests of normality on the return rate of stock by skewness - kurtosis test and kolmogorov - smirnov test

    第一部分對期權定價有關問題作綜述，先介紹有關期權的一些概念，再介紹期權定價的方法與計算，最後概括期權方面研究的問題與本文主要研究的問題
  17. Secondly, we propose a multi - user detection based on kurtosis. this method can suppress not only mai ( multiple - access interference ) but also isi ( inter - symbol interference ). all needs in the detection are only the desire user ' s spreading code

    並在此基礎上，提出了一種基於峭度的盲檢測方法，這種方法不但可以抑制多址干擾mai （ multiple - accessinterference ） ，還可以抑制符號間干擾isi （ inter - symbolinterference ） ，而且在檢測時只需要期望用戶的擴頻碼信息，是一種全盲檢測方法。
  18. In audio robust watermark algorithm, watermark is embedded in transform domain by using the speediness, simplicity and multi - resolution of wavelet transform. when extracting watermarking, the audio is decomposed by single - level discrete 1 - d wavelet transform, and watermarking is extracted by ica based on kurtosis maximization. this method ’ s computational cost is low

    音頻水印利用小波變換快速、簡單和多解析度的特點來嵌入水印，提取的時候，先對觀測音頻文件進行一級小波分解，然後用基於最大峰值的ica方法進行水印提取，這種方法避免了其他盲源分離方法必需的求逆運算，所以計算量小。
  19. In order to mensurate the certain amount of iron, i apply the spectrum - kurtosis technic on the basis of using orthophenanthroline spectroscopy this method can avoid to be disturbed by oher ions and raise the accuracy

    摘要在鄰二氮菲光度法的基礎上，引入光譜峰面積技術，對微量鐵進行定量測定，該方法避免了有關離子的干擾，提高了準確度。
  20. Secondly, we construct the sequential confidence intervals for the common number characters : coefficient of variation, skewness and kurtosis, stressing on computing their asymptotic variances in their limiting distributions

    其次，我們就常用的數字特徵變異系數、偏度和峰度分別建立了它們的序貫置信區間程序，著重算出它們極限分佈中的相關漸近方差。
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