自相關數 的英文怎麼說

中文拼音 [zìxiāngguānshǔ]
自相關數 英文
autocorrelation
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 關 : Ⅰ動詞1 （使開著的物體合攏） close; shut 2 （圈起來） shut in; lock up 3 （倒閉; 歇業） close down...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 相關 : be interrelated; be related to; be bound up with; correlation; dependence; relevance; mutuality
  1. The autocorrelation function is an even function.

    自相關函數是一個偶函數。
  2. Measuring minute displacement based on digital speckle autocorrelation technology

    基於數字散斑自相關技術的微位移測量
  3. ( 2 ) it explains the basic concept of time series, some kinds of the common time series models and the development characteristics of time series in detail. it analyses how to judge the model from the self - related function and the deviation related function. determining a better standard to set up models from the comparison of some kinds of fixed step time series standards, then predicts utilizing the counter function

    （ 2 ）詳細闡明了時間序列的基本思想、幾種常見的時間序列模型以及時間序列的動態特徵，分析了如何利用自相關函數和偏相關函數來對模型進行判定，通過對時間序列的幾種定階準則的比較，確定一種好的定階準則來建立模型，從而可以利用逆函數法進行預報。
  4. We will show that not any mean of the revenue rates of the industrial indexes is significantly beyond value zero at confident level 0. 90. moreover the mean of the revenue rate of sse 30 index is negative ( though not significant ). and the fact of " the heritage of variance " appears congruous to the feature of industries represented by the corresponding indexes

    第二章，通過分析上海股市各分類指數的收益率序列的特徵，得出結論如下：各序列都非正態，有自相關性和異方差存在，相對適宜用garch （ 1 ， 1 ）來擬合；除了上證商業（ 1b0002 ） ，各分類指數收益率的均值在85的置信度下都不顯著地異於0 ，而上證30 （ 1b0007 ）的收益率竟小於0 ；在各分類指數中， 」波動繼承性」的結果和各分類指數對應行業的特徵是相關的。
  5. 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。
  6. This paper reviews the history of research of long - range dependence and self - similarity in data network traffic, introduces the related concepts and discusses the physical interpretation of long - range dependence and self - similarity along with fractional brownian motion. finally, a method for generating fractional brownian motion random series is analyzed

    本文將介紹長程依賴和自相似在計算機網路研究中的歷史狀況，相關數學概念，給出了基於分數布朗運動的計算機網路業務流呈現長程依賴和自相似屬性的數學和物理解釋，討論分析分數布朗運動隨機序列生成方法。
  7. For phase space reconstruction of ship - radiated noise, using auto correlation function and mutual information to select the delay - time, and using false nearest neighbors method to select the embedding dimension

    從自相關函數及互信息嫡兩個方面討論了相空間重構中延遲時間的選擇。
  8. This method uses two spatially separated receiving equipment. cross correlation of the two outputs will therefore yield the auto correlation function ( acf ) of the signal, plus noise which is spread uniformly over the whole width

    該演算法採用空間上分離的兩路接收設備，通過對包含同一個信號的2個輸出信號互相關，得到信號窄自相關函數（ acf ）和在整個帶寬里均勻分佈噪聲成分。
  9. Two detection methods of chirp signals are presented in the dissertation : the cyclic autocorrelation detection method and the correlation detection method of cyclic autocorrelation function. it is shown that the two methods both have an excellent performance of blind detection. the performance analyses of the two detection methods are both carried out for additive noise or multiplicative noise, and the output signal - to - noise ratio ( snr ) expressions of the two methods are also derived

    通過研究提出了兩種線性調頻信號的檢測方法?基於循環自相關函數包絡的檢測方法和基於循環自相關函數的相關函數包絡的檢測方法，兩種方法均可實現信號的盲檢測，有良好的檢測性能，文中還分析了加性噪聲及存在乘性和加性噪聲情況下兩種檢測方法的性能，推導出了輸出信噪比公式。
  10. Moreover two types of non - cooperative sequences estimation and despreading schemes are introduced briefly. 2. several usual blind code synchronization methods, including delay multiply ( sliding autocorrelation ), maximum norm and average noise reduction approaches are summed up and analyzed by computer simulations

    2 、總結和介紹了幾種常用的盲碼同步方法，包括延遲相乘（滑動自相關）法、最大范數法、平均降噪法等，並進行了計算機模擬和分析。
  11. The numerical simulation equations of the border curves in term of and as well as the matching rules and the frequency dependence of microwave electromagnetic parameters of a broad - band homogeneous absorbing coating with a finite value of reflection loss are available. these results pointed out the direction to develop rams ". according to the radar - absorbing model, the optimized design of rams with thin - layer, light - weight, broadband and strong - absorbing is available by the simple genetic algorithms, which can effectively conduct the research work of rams to the detail. small but completely, the electromagnetic parameter ' s databases of rams that based on actual microwave absorbers have been set up, the object function has been constructed which conform to the involved goals, the adaptive coding measure is taken which extends the coding length dynamically adapting to the condition of the number of actual absorbers or the precision of thickness and absorber - volume - percentage, the decoding technique is initiated which satisfies light - weight and strong - absorbing as well as thin - layer and broadband by adopting of tracing variable restricting conditions dynamically to control total thickness. when decoding, the variable restricting conditions of thickness are dynamically traced, so gain the radar absorbing coatings of light - weight multiple - layer single - ingredient. similary, of thickness and absorber - volume - percentage, of light - weight multiple - layer multiple - ingredient. also, the rams ' demand to radar - absorb performance as frequency is met making use of the penalty function

    作為遺傳演算法的具體實施：根據本實驗室近來研製的吸波材料，建立了吸波材料的相關數據庫；構造了能真實體現「薄、輕、寬、強」優化目標的目標函數；根據材料的實際數量以及塗層厚度精度要求、吸收劑體積分數精度要求，建立了能動態擴展相應碼長的自適應編碼方法；首創了通過動態跟蹤變量的約束條件來控制塗層總厚度的解碼技術，以此實現了在不弱化寬頻、高強的吸波性能目標的同時，兼顧到薄層、輕質的使用性能要求；在解碼時通過動態跟蹤厚度變量的約束條件，實現了多層單組分吸波塗層對重量輕的要求；通過動態跟蹤厚度變量的約束條件和吸收劑體積分數的約束條件，實現了多層多組分吸波塗層對重量輕的要求；使用權重系數變化法，實現了吸波塗層的分頻段吸波性能要求。
  12. The signal process function of the software include these function : digital filter, windowing, auto - correlation function and cross - correlation function, mean and variance, probability density function and probability distribution function statistic ; auto - power spectrum, cross - power spectrum, frequency response function, coherence function, cepstrum analysis based on fft ( fast fourier transfer ) ; joint time - frequency analysis based on stft ( short - time fourier transfer )

    軟體的處理功能包括：數字濾波、時域加窗、自相關與互相關處理、均值和方差計算、概率密度和概率分佈函數計算；在快速傅立葉變換（ fft ）基礎上計算自功率譜、互功率譜、頻率響應函數、相干函數、倒頻譜分析；基於短時傅立葉變換（ stft ）的聯合時頻分析等。
  13. The thesis had done the theories analysis in detail and built the relevant mathematics models aiming at the mechanics characteristic about the lodging of stalk, the elastic and plastic deform of stalk under the action of the transverse loads, the mechanics condition which causes stalk pushed, the relation between the speed of unit and the surface radius of ski, the relevant location between the thickness of the compressed stalk and action location of load, the relevant location between the mating device and plough, the coefficient of overturning soil under the thickness of the compressed stalk and so on. in addition, the computer aided analysis and simulating experiments in field were acted by choice

    本文對秸稈自倒伏力學特性；橫向載荷作用下的莖稈彈塑性變形與秸稈被推倒的力學條件；機組作業速度與滑撬曲面半徑的關系；秸稈壓實厚度與加載作用點的相對位置；配套裝置與犁體相對位置；秸稈壓實厚度下的翻垡系數等，進行了較詳細的理論分析並建立了相關數學模型。在此基礎上，本項研究還選擇性地進行了計算機輔助分析和田間模擬試驗。
  14. We develop some methods for evaluating the security of lsb steganography using randomness test and two - dimension self - correlation function. 4 ) evaluation of the statistical visibility of information hiding algorithms

    提出了基於二維自相關函數徑向譜和隨機性檢驗（包括順序檢驗、遊程檢驗和一維自相關檢驗）的lsb信息隱藏安全性評估方法。
  15. Firstly, the notion of the form as a = > b [ s %, c % ] is researched and some algorithms are discussed. an algorithm named a progressive refinement approach to spatial data mining is discussed in detail. and a new thought of mining spatial association rule based on spatial data cube is brought forward

    闡述了a = > b [ s ， c ]形式的空間關聯規則的基本概念和演算法，詳細研究了一種逐步求精的空間關聯規則挖掘演算法的實現；提出一種基於空間數據立方體的空間關聯規則挖掘的新思路；將空間統計分析引入空間關聯規則挖掘領域，研究了空間權重矩陣、空間自相關、空間關聯等的度量函數，並利用空間統計分析技術發現空間相關關系和空間關聯規則。
  16. The formulas for computing mean and deviation of the average consolidation degree of double - layered soil are derived as vertical coefficient of consolidation submitting to gamma distribution. with these formulas, the influence of geotechnical auto - correlation distance to the probability characteristics of consolidation degree is studied. it shows that along with the rising of auto - correlation distance, the sensitivity of probability characteristics of consolidation degree to auto - correlation distance is falling

    當豎向固結系數為gamma分佈時，推導了雙層地基平均固結度均值和方差的計算公式：利用該公式分析了土性自相關距離對平均固結度概率特性的影響，結果顯示，自相關距離越大，平均固結度的概率特性值對自相關距離越不敏感。
  17. At the doppler centroid aspect, this paper make use of maximum value method ; energy method and autocorrelation function method to estimate doppler centroid. at the doppler frequency aspect, this paper make use of image offset method ; time - frequency method ; minimum entropy and fractional fourier transformation method to estimate doppler frequency rate

    在多普勒參數估計中，採用了最大值法、能量法和自相關函數法進行多普勒中心頻率估計;採用了圖像偏移法、時頻分析法、最小熵法和分數階傅里葉變換法進行多普勒調頻斜率估計。
  18. By making use of the time dependent covariance and cross covariance formula which used to calculate the non - stationary response under earthquake random excitation and deduced by xiyuan zhou and hu in 1965, the covariance and cross covariance formula of the four envelope models was deducted and the result of four models compared

    本文通過應用周錫元、胡聿賢在1965年提出的計算地震動隨機激勵作用下非平穩響應的時變自相關方差和時變互相關方差公式，分別推導了四種包線函數模型的時變自相關方差和時變互相關方差表達式，並比較了四個模型的結果。
  19. A new algorithm improving watermarking robustness based on a self - reference concept and exploits special autocorrelation features ( acf ) of a spatial template is proposed in this paper

    摘要提出一種改進的基於自參考概念和空間模板的自相關函數特性的數字水印演算法。
  20. Analyze window shows the microphone signal, autocorrelation data and absolute value of autocorrelation data. beginning of the yellow data curve are post processing data

    分析窗口展示相關數據的話筒信號、自相關數據和絕對值。黃色數據曲線的起點是標桿處理數據。
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