autocorrelation function造句
例句與造句
- The autocorrelation function is an even function .
自相關(guān)函數(shù)是一個偶函數(shù)。 - Methods based on spatial frequencies evaluate the coefficients of the autocorrelation function of the texture
基于空間頻率的方法估計紋理的自相關(guān)函數(shù)。 - Maximum value method is fast but not accurate , autocorrelation function method is accurate and have a good effect form radar image according to their estimate methods
在多普勒中心頻率估計中,最大值法簡單,但精度不高,自相關(guān)函數(shù)法有較高的估計精度。 - Then by using the inverse autocorrelation function we get another means of moments parameter estimates on the ma part of arma ( p , q ) , cleveland - parzen estimates
從而通過逆自相關(guān)函數(shù)得到了arma ( p ， q )過程ma部分的參數(shù)的另一種矩估計方法， cleveland - parzen估計。 - A scheme to identify the stochastic signal and its modes by computer is introduced and using the method of the autocorrelation functions for recognizing the stochastic audio signal fleet has been applied
摘要分析了利用自相關(guān)函數(shù)法實現(xiàn)快速識別隨機音頻信號，介紹一種用計算機實現(xiàn)隨機音頻信號處理與模式識別的硬件結(jié)構(gòu)和程序設(shè)計。 - It's difficult to find autocorrelation function in a sentence. 用autocorrelation function造句挺難的
- To model the elastic properties of rocks with distribution fractures , a new heterogeneous anisotropic constitutive model was presented . in this model , the autocorrelation function is used to describe the spatial distribution of crack number density
提出一種新的非均勻各向異性本構(gòu)模型來模擬具有分布裂縫的巖石，在這個模型中用自相關(guān)函數(shù)來描述裂紋數(shù)密度的空間分布。 - The core of the proposed new cdma system is the use of orthogonal complete complementary codes , whose autocorrelation function is zero for all even and odd shifts except the zero shift and , whose crosscorrelation function is zero for all possible shifts
在本系統(tǒng)中，利用完全互補碼處處為零的互相關(guān)特性和自相關(guān)的旁瓣為零的特性，可有效消除系統(tǒng)的多址干擾，提高系統(tǒng)的容量。 - We consider a causal , stationary , autoregressive , moving average [ arma ( p , q ) ] process with heavy tailed noise variables . we develop the definition of the inverse autocorrelation function , and obtain the g - spectral estimator of the inverse autocorrelation function
本文基于噪聲序列具有重尾分布的因果、平穩(wěn)自回歸滑動平均[ arma ( p ， q ) ]過程，給出了其逆自相關(guān)函數(shù)的定義，并且給出了逆自相關(guān)函數(shù)的g -譜估計。 - The correlation detection using the periodicity of the direct sequence autocorrelation function can estimate the symbol period at intermediate frequency or at baseband . simulation results indicate that the former is superior to the latter when the demodulated frequency is unequal to the carrier frequency
時域相關(guān)檢測方法利用擴頻信號的周期自相關(guān)特性，能在中頻和基帶對擴頻碼周期進行估計，仿真結(jié)果表明中頻檢測時性能較好。 - 3 . the calculating table of the autocorrelation functions are constructed and their essence and abilities are revealed . furthermore , the new concept of general autocorrelations is presented for the calculation of the order of sac ( strict avalanche criteria ) and pc ( propagation criteria )
3 、構(gòu)造了自相關(guān)函數(shù)的計算表，分析其本質(zhì)含義，解釋其在分析密碼性質(zhì)方面的功能；進而提出了廣義自相關(guān)函數(shù)的概念，有效地解決了嚴(yán)格雪崩準(zhǔn)則和擴散準(zhǔn)則階數(shù)的確定問題。 - One is using the autocorrelation function to detect the speech terminal , the other is using the coefficients based on the one - sided autocorrelation sequence to replace the original speech signal and then extract the speech feature to recognize . isolated word recognition experiment based on dtw shows : it can reduce the disturbance of noise effectively and get the high recognition rate . it is of great advantage to apply when snr signal to noise rate is low
對含噪語音在自相關(guān)域上進行處理，以其自相關(guān)函數(shù)值為參數(shù)進行端點檢測，以基于單邊自相關(guān)序列的lpc倒譜系數(shù)作為語音的特征參數(shù)進行語音識別，實驗表明：這種方法較好地消除了噪聲對語音信號的干擾，并獲得了較高的識別率。 - 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(diào)頻信號的檢測方法?基于循環(huán)自相關(guān)函數(shù)包絡(luò)的檢測方法和基于循環(huán)自相關(guān)函數(shù)的相關(guān)函數(shù)包絡(luò)的檢測方法，兩種方法均可實現(xiàn)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(dǎo)出了輸出信噪比公式。 - The use of wave packet to analyze the dynamics of quantum mechanical systems is an increasingly important method to the study of the classical - quantum correspondence . using the quantum gaussian wave packet analysis method , we calculate the autocorrelation function of the rectangular billiard , the peak positions of the autocorrelation function match well with the periods of the classical periodic orbits , which show that the period of the classical orbits can be produced by the time - dependent quantum wave packet method . we also discuss wave packet revivals and fractional revivals in the rectangular billiard , the results show that there are exact revival for all wave packet at each revival time . we find additional cases of exact revivals with short revival times for zero - momentum wave packets initially located at special symmetry point inside the billiard
利用波包分析量子力學(xué)體系的動力學(xué)行為在研究經(jīng)典和量子的對應(yīng)關(guān)系方面越來越成為一個非常重要的方法.利用高斯波包分析方法,我們計算了矩形彈子球體系的自關(guān)聯(lián)函數(shù),自關(guān)聯(lián)函數(shù)的峰和經(jīng)典周期軌道的周期符合的很好,這表明經(jīng)典周期軌道的周期可以通過含時的量子波包方法產(chǎn)生.我們還討論了矩形彈子球的波包回歸和波包的部分回歸,計算結(jié)果表明在每一個回歸時間,波包出現(xiàn)精確的回歸.對于動量為零的波包,初始位置在彈子球內(nèi)部的特殊對稱點處,出現(xiàn)一些時間比較短的附加的回歸 - The author makes a stabilized and zero mean treatment of the statistic data on the per capita annual net income of henan farmers between 1978 and 2005 , and using the property of the autocorrelation function and partial autocorrelation function of time sequence , establishes the model appropriate for the data
摘要筆者根據(jù)河南省1978年2005年的農(nóng)民人均純收入統(tǒng)計數(shù)據(jù)，將這些數(shù)據(jù)進行平穩(wěn)化、零均值化處理，并利用時間序列的自相關(guān)函數(shù)，偏自相關(guān)函數(shù)的性質(zhì)，確認(rèn)數(shù)據(jù)所適合的模型。 - The effects of heterogeneous anisotropic random fractured rocks with different autocorrelation length and different autocorrelation function were discussed . the results show that : l ) the scattering effects become weaker when the autocorrelation length becomes larger . 2 ) the exponential ellipsoidal random fractured rock has different scattering effects on waves in different coordinates direction , and 3 ) . the gaussian random fractured rocks has the same
通過模擬發(fā)現(xiàn): 1 )隨著自相關(guān)長度的增加，巖石的非均勻性對波的散射作用減弱; 2 )指數(shù)橢圓型隨機裂縫巖石對彈性波在兩個坐標(biāo)方向上造成的散射不同; 3 ) gaussian型隨機裂縫巖石對彈性波在兩個坐標(biāo)方向上有相同散射作用。
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