auto correlation 中文意思是什麼

auto correlation 解釋
自動關聯
  • auto : n. （pl. autos） 〈美口〉汽車。vi. 坐汽車。
  • 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。
  1. 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。
  2. 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。
  3. 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。
  4. And the code selection of good non - periodic auto correlation in pulse internal phase modulation will benefit the suppress of range side - lobe

    脈沖內部調相選用具有良好非周期自相關性能的編碼還有利於距離旁瓣的抑制。
  5. The article analyses whether the theory of emh market can explain some phenomena on capital market. we provide some evidence for the non - normal, non - gaussian distribution, auto - correlation, non - linear and heteroskedasticity character of stock price

    文章就有效市場假說（ emh ）對現實資本市場的解釋能力進行了分析，發現我國股票市場的股價收益率序列具有非正態性、自相關性、非線性、異方差性等特點。
  6. 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。
  7. That of available potassium showed the interruption of human activities with the highest value ( 81. 2 % ), and of cec, total potassium, available copper showed that spatial auto - correlation was master with the value less than 25 %. there was no relationship between spatial variability and distance, but with the nugget of 0. 2, therefore, the distance

    Kropng插值結果進一步表明土壤表層養分含量具有高度的空間異質性，決定了空間格局的存在，養分含量的斑塊（ patch ）的大小、形狀及空間分佈等具有顯著的差異，但是不論在什麼方向，養分含量由低到高的分佈梯度規律總是存在的。
  8. The detection of weak sinusoidal signal by multi - layer auto correlation

    用多重自相關法檢測微弱正弦信號
  9. And then, the esprit bearing estimation problem. is reformulated using fourth - order cumulant matrices instead of auto - correlation matrices. by doing so, the fourth - order cumulant matrices of additive colored gaussian noises can be suppressed

    在此基礎之上，將esprit方法擴展到四階方法，用四階累積量矩陣代替自相關矩陣，實現對加性有色高斯噪聲的抑制，提高演算法的估計精度。
  10. The requirement on the sequence ' s auto - correlation was loosened after the research on ambiguity function. the candidate sequences were great broadened

    在仔細研究二進制編碼雷達的模糊函數的基礎上，放鬆了lpi信號對自相關的要求。
  11. The method is compared with the box - counting method and the results show that the auto - correlation function method is accurate and efficient

    合成分形圖像和自然紋理圖像被用來檢驗該方法的準確性，並與計盒方法進行了比較，結果顯示自相關法是準確的和有效的。
  12. Chapter 7 introduces and analyzes some timing error detection and feed - forward timing recovery algorithms for gmsk signal. the auto - correlation method is improved by using a post - filter. simulation results show that the improved method has better estimation accuracy

    首先分析比較了常見的gmsk符號同步的定時誤差檢測器演算法和前向定時參數估計演算法，並用后濾波的方法對定時參數估計的自相關法提出了改進，提高了演算法的估計精度。
  13. For the issue of blind parameter estimation of dsss / bpsk signal damaged by strong additive white gaussian noise ( awgn ), this dissertation mainly researches on carrier doubler method ( cdm ), auto - correlation method ( acm ), delay - and - multiply ( dm ) method and fourth - order cumulant 2 - d slice method

    針對受強高斯噪聲污染的dsss / bpsk信號對抗技術中的盲參數估計問題，本文著重研究了平方倍頻法、時域自相關法、延遲相乘法三種常規的單參數估計法以及四階累積量2 - d切片多參數估計法。
  14. Researches on differential auto - correlation technique for two - phase flow measurement

    用於兩相流測量的差動自相關測量系統研究
  15. Authors used auto - correlation method and took longhua area, shenzhen city, as working area to study the spatial structure characteristics of landscape pattern and their contributing factors. the results indicated that all the landscape structure variables, which were used in the analysis process, expressed good structure features. it means that the landscape pattern of working area was formed by some kinds of driving forces which could not only cover the whole area, but also had good continuity. detailed analysis resulted that the elevation differences were only the background impact factor of the landscape spatial pattern, but the intensive artificial landscape reforming of the fast urbanization process was the main contributing factor, which made the significant differences of landscape structure between 1988 and 1996. since 1990, the landscape of working area has gradually changed to a landscape dominated by human impact

    利用空間自相關分析方法，以深圳市華地區為例，對快速城市化景觀的空間結構特徵及其成因進行了研究。參與分析的景觀結構變量均表現出較好的結構性，表明該地區景觀是在一種既可以覆蓋全區，又具有良好連續性的驅動機製作用下形成的。進一步詳細分析結果表明，工作區內的地形條件差異是景觀空間分佈格局成因的背景性因素，而快速城市化過程中人類活動的強烈改造作用，是導致1988年和1996年景觀結構特徵發生顯著差異的根本性影響因素。
  16. Based on the characteristics, an auto - correlation function method is obtained to estimate fractal dimension

    研究離散高斯噪聲的自相關函數的性質。
  17. The require of address code in project is that the sequence has acuity auto - correlation and the cross - correlation is near to zero

    由於工程上對地址碼的要求是必須具有尖銳的自相關函數，而互相關函數接近於零。
  18. There are difficulties in noisy speech recognition, especially low signal - to - noise rations are more difficult. this paper describes briefly six methods for speaker - dependent noisy speech recognition isolated words. they are lpc prediction error method, one - side auto - correlation sequence lpc, acoustic front end processing, canonical correlation based on compensation method, combination of features method and increase of poles method. the experimental results show that all the six techniques can improve effectively noisy speech recognition, and the best noisy speech recognition rate is above 80 % when snr 0db

    它們是：線性預測誤差法，單邊自相關線性預測法，語音前端聲學處理法，正則相關分析的譜變換補償方法，特徵綜合法和同模極點增加法。實驗結果表明，這6種方法都有效地提高了噪聲環境中語音識別率，其中較好的方法在強噪聲環境中信噪比為0db的語音識別率達到80 %以上，為信噪比較低的噪聲環境中自動語音識別展現了美好前景。
  19. Based on high - dimension space geometry, every speech sample is looked as a point in space. then the speech sample point is extracted feature by lpc, mel - scaled cepstrum analysis or auto correlation - angle. their feature is looked as a point too

    基於高維空間幾何的思想，把每個樣本點和其特徵值看作高維空間中的一個點，用線性預測分析、 mel倒譜分析和自相關夾角法對樣本點提取特徵，然後用點在空間的投影來判別語音和非語音，根據判別結果來比較三種特徵提取方法的優劣。
  20. The main contents of this dissertation are follows : the mathematical model of chaos is discussed deeply from mathematical map, statistical viewpoint for the purpose of analysis and synthesis chaotic signal. the dissertation analysis chaotic signals deeply, mainly about the correlation property ( including auto - correlation and cross correlation ) and lyapunov exponent. the study shows the ideal auto correlation and cross correlation of the chaotic signals by using theoretical derives and computer simulations

    本文首先對混沌信號的數學模型進行了深入的討論，並分別從數學映射、統計學角度對其數學模型進行了全面的研究，特別是全面總結了混沌系統的統計學模型的研究成果，討論並給出了混沌與噪聲的區別與相似之處；雷達信號處理的重要一步是雜波中的信號檢測問題。
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