階的估計方法 的英文怎麼說

中文拼音 [jiēdegūjìfāngfǎ]
階的估計方法 英文
rank estimate method
  • 階 : 名詞1. （臺階） steps; stairs 2. （等級） rank 3. [醫學] （耳蝸的三個螺旋管的任一個） scala 4. [數學] order 5. [地質學] stage
  • 的 : 4次方是 The fourth power of 2 is direction
  • 估 : 估構詞成分。
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  • 估計 : estimate; evaluate; take stock of; size up; calculate; appraise; reckon; estimation; forecast
  • 方法 : method; means; way; technique; process; procedure; plan; device; recipe; fashion; tool; maneuver
  1. Focused on the application of the generalized cross correlation ( gcc ) time delay estimation ( tde ) in the car microphone array denoising system, gcc tde algorithm is analyzed theoretically and compared with high rank cumulation tde

    摘要針對汽車環境中麥克風陣列語音去噪系統的應用，對廣義相關時延估計方法進行了模擬，並與基於高階累積量的時延估計方法作了比較分析。
  2. It is very important to estimate the basic parameters in helicopter preliminary design. neural network ( nn ) has the advantages in estimating accuracy and generalization over traditional methods. however, there are some difficulties in using nn, e. g., how to select a proper network structure and the number of hidden layers. in this paper, structure and connection weight of a three - layer nn are optimized by genetic algorithm, and the optimized network is applied to helicopter sizing. the proposed method can not only give an optimal nn structure and connection weight, but also reduce the prediction error and has the capability of self - learning when the latest data are available. furthermore, this method can be easily applied to helicopter design systems

    在直升機初步設計階段估算其基本參數是很重要的.神經網路的通用性和精度比傳統的估算方法有更多的優勢，但是在應用神經網路時存在如何選擇合適的網路結構和隱層節點數目等一些困難.應用遺傳演算法優化三層神經網路結構和連接權重，並將優化得到的網路應用於直升機參數選擇中.該方法不但可以給出一個最優的神經網路結構和連接權重，而且降低了估算誤差，具有及時應用最新數據學習的能力.此外，該方法易於在直升機設計系統中得到應用
  3. Tricepstrum equalization algorithm ( btea ) and super - exponential ( se ) algorithm based on block data estimation is studied, and these algorithms use hos explicitly. their performance, such as estimation variance and bias, is analyzed. a kind of sparse cross cumulant and sparse equalizer is proposed to simplify the se algorithm, and the simulating results show efficient reduction in complication

    ?研究了幾種直接使用高階統計量的演算法，包括基於數據段估計的倒三譜演算法和超指數演算法，分析了演算法的估計方差和偏差等性能；由於超指數演算法計算量較大，不利於實時均衡，利用水聲通道的稀疏性，提出了一種基於稀疏互四階累積量和稀疏權的演算法，有效降低了超指數演算法的計算量。
  4. Unlike the normal two stages estimate method ( the usual nonparametric weighted method combined with the least square estimate ), considering the characteristics of this model, this paper uses the least square estimate combining with the usual nonparametric weighted method and defines the estimators and n2 for the unknown parameter, the unkown fuction g ( ) and the unknown variance of errors 2

    與通常採用的兩階段估計方法即非參數權函數法結合最小二乘法不同，考慮到此模型本身的特性，本文採用最小二乘法結合一般非參數權函數估計方法，定義了未知待估參數和未知函數g （ ? ）及誤差方差~ 2的估計量（ ? ） _ n ， （ ? ） _ n （ ? ）和（
  5. 2 ) systematically introduced parameter estimation of distributed sources on the base of models, including the maximum likelihood estimate, least squares estimator, dspe, dispare, etc. 3 ) studied four low complexity algorithms : one order approximation, two point sources approximation, traditional beamforming and relax of parameter estimation

    2 ）在模型基礎上系統地介紹了已有分散式目標參數估計方法，包括最大似然與最小二乘演算法， dspe和dispare演算法等。 3 ）研究了四種低復雜度演算法：一階近似演算法、兩點近似的演算法、常規波束形成演算法和relax演算法，這些演算法都是次優演算法，但計算量小，具有實用價值。
  6. Firstly, the shear and normal stresses of tapered members under the transverse load or axial load are analysed, and the stresses formulas are obtained which are different from those of the prismatic ones. secondly, research is done on the in - plane inelastic stability of tapered members under axial loads about strong axis and weak axis. a new design method is suggested in which the tapered member is equivalent to the prismatic member with the cross - section at the larger end of the tapered member

    同時由分析可知，目前採用的將變截面壓桿按照彈性極限荷載等效的原則等效成以小端截面為準的等截面壓桿的設計方法，在彈塑性階段低估了壓桿的承載力，即彈性等效的壓桿在彈塑性階段並不等效，實際變截面壓桿的承載力比等效的等截面壓桿的承載力要高。
  7. The detection and parameter estimation based on high - order statistics are another approach for ds - ss / bpsk signals. in this paper, a sort of detectors based on fourth - order statistics slices are presented to detect the presence of signal and estimate the carrier frequency and symbol period of ds - ss / bpsk signal

    高階統計分析技術是檢測直接序列擴頻信號的另一途徑，本文提出了一類基於和四階統計量切片的ds - ss / bpsk信號的檢測與參數估計方法。
  8. Second, since there are lots of redundant items in the fourth - order cumulant matrices, we introduce an algorithm of direction - of - arrival estimation based on the maximal set of nonredundant cumulant ( msnc )

    其次，由於利用四階累積量進行波達方向估計時計算量很大，文中提出了一種基於最大非冗餘累量集合的方向估計方法。
  9. First, the thesis introduces the definitions and the attributes of the higher - order statistics. it is insensitive to additive gaussian noise ( white or colored ), which is what we base on to doa problems. then two doa estimation algorithms based on higher - order statistics are presented, one is that forming cumulant matrix pencil used in esprit to estimate doa problems, the other is spectrum estimation method for doa estimation based on the eigenstructure analysis of the fourth - order cumulant, and comparing the effects of the estimation to conventional covariance - based doa algorithms "

    論文首先對高階統計量的定義和性質作了介紹，特別指出了高階統計量對加性高斯噪聲（白色或有色）不敏感，這是我們利用它進行波達方向估計的理論依據，然後文中提出了兩種基於高階統計量的波達方向估計方法，一種是利用子空間旋轉不變技術構造四階累積量矩陣進行估計的方法，另一種是基於四階累積量陣特徵分解的空間譜估計測向方法，並將它們的估計效果與傳統協方差方法的效果進行比較。
  10. Research on one - order differential coefficient estimation based on kalman filtering

    濾波的一階微分參量估計方法的研究
  11. We discuss the connection between the accuracy of approximate matrix and the degree of interpolating polynomials and study the method of estimating the accuracy of the numerical solution

    我們討論了近似矩陣的精度與插值多項式的階數的關系，討論了近似解的精度的估計方法。
  12. In chapter 3, under the wideband radar system, some parameter estimation methods of scattering center are studied in the white noise and clutter background

    第三章以寬帶階梯變頻雷達為研究背景，在白噪聲和雜波條件下，研究了提取目標強散射中心的參數估計方法。
  13. In this paper, the critical order of central point of certain hecke l - function of imaginary quadratic fields is studied by analytical methods

    本篇文章主要利用了解析的方法，研究對虛二次域上一類heckel -函數在臨界區域中心點階的估計。
  14. Fourthly, respectively using cross correlation method for estimation of time delay, phase spectrum method for estimation of time delay and high order spectrum method for estimation of time delay, this paper measures time delay estimation of the data obtained because time delay between two signals has big importance on the testing result. through comparing three results, accurate time delay is obtained under their own different circumstances

    再次，由於兩信號的時間延遲對測量結果有很大的影響，因而研究了用互相關時間延遲估計、相位譜時間延遲估計和高階譜時間延遲估計的方法對測量數據進行了時間延遲估計，結果表明，三種時間延遲估計方法在各自適應的環境下使用，都能得到比較準確的時間延遲估計值。
  15. Abstract : it is very important to estimate the basic parameters in helicopter preliminary design. neural network ( nn ) has the advantages in estimating accuracy and generalization over traditional methods. however, there are some difficulties in using nn, e. g., how to select a proper network structure and the number of hidden layers. in this paper, structure and connection weight of a three - layer nn are optimized by genetic algorithm, and the optimized network is applied to helicopter sizing. the proposed method can not only give an optimal nn structure and connection weight, but also reduce the prediction error and has the capability of self - learning when the latest data are available. furthermore, this method can be easily applied to helicopter design systems

    文摘:在直升機初步設計階段估算其基本參數是很重要的.神經網路的通用性和精度比傳統的估算方法有更多的優勢，但是在應用神經網路時存在如何選擇合適的網路結構和隱層節點數目等一些困難.應用遺傳演算法優化三層神經網路結構和連接權重，並將優化得到的網路應用於直升機參數選擇中.該方法不但可以給出一個最優的神經網路結構和連接權重，而且降低了估算誤差，具有及時應用最新數據學習的能力.此外，該方法易於在直升機設計系統中得到應用
  16. The cyclic estimation approaches of chirp signals in additive nose or multiplicative noise are proposed, it presents a way for the parameters estimation of zero mean amplitude chirp signals. the estimation performances in the additive noise or multiplicative noise are analyzed by the first order perturbation analysis method, and the error variance expressions of the parameters estimation under large samples are derived

    針對加性噪聲情況及存在乘性噪聲的情況，提出了線性調頻信號參數的循環平穩估計方法，解決了零均值乘性噪聲的信號參數估計問題，並採用一階擾動分析方法，對兩種噪聲情況下的估計性能進行了分析，推導出了各參數的估計誤差方差公式。
  17. Based on the fractional lower order statistics and the noise characteristics, a robust adaptive eigenvalue decomposition ( raed ) time delay estimation method is proposed, which extends the eigenvalue decomposition ( aed ) time delay estimation algorithm

    摘要依據分數低階統計量理論和噪聲特徵，提出一種魯棒性自適應特徵值分解（ raed ）時延估計方法，擴展了自適應特徵值分解（ aed ）時延估計方法的使用環境。
  18. The spurious peaks of the cubic phase function ( cpf ) for multicomponent is first identified by theory and by simulations and hence the identifiability problem arises. by exploiting the different dependence of auto - terms and cross - terms on time, the product cubic phase function is proposed to resolve the identifiability problem

    5 .提出了廣義三次相位函數，推出了基於廣義三次相位函數的二次調頻信號參數估計方法，通過一階擾動分析導出了廣義三次相位函數的理論性能。
  19. In this paper, the detection and parameter estimation, are studied for ds - ss / bpsk signal with low signal - to - noise ratio, including square detection, cyclic spectrum detection, correlation detection and higher - order statistics - based detection

    本文研究了包括平方倍頻檢測、周期譜檢測、時域相關檢測和高階統計量檢測四種針對低信噪比下ds - ss / bpsk信號的檢測與參數估計方法。
  20. The study objects of the paper are used in different stage of the design process in the design method. it is to say that after the target performance level is selected, the deformation control design method is used as the structural design method ; the static push - over analysis method is used as the structural nonlinear calculation method and the capacity spectrum method is used as the structural performance evaluation method. so the unified structural design method of the performance based aseismic design can be formed and the aseismic performances of the structures can be controlled in every step of the design process

    該方法將本文研究的各方面內容綜合應用於結構設計的不同階段，即在結構選擇了合適的抗震性能等級后，採用結構變形控制抗震設計方法作為結構的設計方法，以結構靜力推覆（ pusheseeover ）分析方法作為結構的計算分析方法，以結構抗震性能評估的能力譜方法作為檢驗結構實際抗震性能的評估與驗算方法，形成統一的結構抗震設計方法，在結構設計的各個階段控制結構的抗震性能，體現基於結構性能的抗震設計理念。
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