最初估計數 的英文怎麼說

中文拼音 [zuìchūgūjìshǔ]
最初估計數 英文
original estimate
  • 最 : 副詞（表示某種屬性超過所有同類的人或事物） most; best; worst; first; very; least; above all; -est
  • 初 : Ⅰ名詞1 （開始的部分） at the beginning of; in the early part of 2 （姓氏） a surname Ⅱ助詞（附著...
  • 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...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 最初 : prime; initial; first
  • 估計 : estimate; evaluate; take stock of; size up; calculate; appraise; reckon; estimation; forecast
  1. In chapter two, we consider full disceret scheme of mixed finite element methods for the following initial - value problems of linear integro - differential equations of parabolic in this chapter, we give the error analysis of this full discrete scheme and get optimal error estimates for the discrete solutions of u and p

    第二章討論下述線性拋物型積分微分方程初邊值問題混合有限元方法的后差全離散格式。給出了該全離散格式的誤差分析，得到了離散解逼近未知函數u以及伴隨速度p的關于空間和時間的最優階誤差估計。
  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. Because the wind load is a random action, the statistical parameters of structural response under this load can hardly obtained beforehand. however these parameters is necessary to klaman filtering as the preliminary condition. if not ? ot, this signal processing cannot be called the genuine real time optimum estimation

    由於風荷載是一種隨機作用，結構在這種荷載的作用下，結構響應的統計參數不可能事先得到，而這種參數卻是kalman濾波的初始條件，也就不能實現真正的實時最佳估計。
  4. Wake vortex separation standards are used to prevent hazardous wake vortex encounters which mainly found in the final approach course within the airport termination zone. firstly, this paper analysis the mechanism of the vortex decay and research the influence on the safety of the flight ; then. several different radar wake vortex separation standards are compared and some basic guidelines are developed to establish the future vortex standards. in addition, one kind of advance vortex classification for the civil airplane is proposed. secondly, an encounter hazard model which established for the following aircraft and a simple vortex decay model which mostly concern with the proceeding one are developed ; and a safe separation model can be derived from the both. finally, through the simulation calculation, the correctness of the vortex classification of different types of aircrafts are tested and proved

    本課題對雷達管制條件下的最小尾流間隔標準進行了較為詳細的分析和研究；首先對尾流的形成和消散機理以及尾流對飛行安全的影響做出了詳細的分析，然後就目前實行的幾種不同的最小尾流間隔標準進行了比較和分析，提出了相關的幾條準則和一種改進的機型尾流分類標準；在這之後，採用理論分析和統計數據分析相結合的方法，建立了尾流危險遭遇基本模型和尾渦消散模型；並在此基礎上對民用航空不同機型的尾流分類的合理性進行了計算和評估，為最小尾流間隔標準的確定和改進提供了初步的理論依據。
  5. Time delay was chosen by using autocorrelation function method and mutual information method, while reconstruct dimension was obtained by g - p saturation correlation dimension method and false nearest neighbor percentage method. furthermore, initial neighborhood radius was computed by the estimated noise level based on the g - p saturation correlation dimension method. secondly, a noise reduction of the inflow time series was carried out by chaotic nonlinear local projection noise reduction method, and the effects on noise to chaotic characteristics and state reconstruction parameters were discussed

    採用g - p關聯維法計算關聯維數； rosenstein法和kantz法計算最大lyapunov指數；重構相空間的延遲時間採用了自相關函數法和互信息量法；嵌入維數採用了飽和關聯維法和偽鄰近點法；初始領域半徑的選取採用了基於g - p關聯維法的噪聲水平的初始估計方法。
  6. In this method, the principal axes method is used to estimate the parameters of the transformation, then with the estimated pamameters as the initialization of powell optimization method and with all of the available information as the feature, a high accurate registration is achieved by calculating the minimum standard deviation between the registered images

    該方法首先採用主軸法對變換參數進行初步估計，之後採用powell最優化演算法，利用全圖像灰度信息來作為圖像的參考特徵，通過計算配準圖像之間差的平方和的極值來實現圖像配準，從而提高了配準精度。
  7. So, it is main problem that set up mathematic model for ship motion simulation. however, the calculating definition of maneuverability motion depends on the hydrodynamic derivatives. for this reason, the purpose of this article is : apply newly hydrodynamic derivatives formula to calculate hydrodynamic forces and offer the ship maneuverability index during the design stages

    因此，本文的研究目的是：運用最近提出的水動力導數近似估算公式，獲得較為精確的水動力計算，為船舶工程人員在船舶初始設計階段提供使用工具，使他們在設計時就能較準確地獲得實船操縱性能指標。
  8. 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
  9. Then, took least squares estimator of test data as preliminary estimate, applied versatile maximum likelihood estimate method to treat test data, obtained the estimators of electrical connectors reliability characteristic values

    並以試驗數據的最小二乘估計值為初始值，應用極大似然估計方法對試驗數據進行統計處理，得出了電連接器可靠性特徵值的估計值。
  10. On the base of the soft about the deformation of aerodynamic configuration of mav, the advanced controlling technique of the deformation o f aerodynamic configuration about the prototype mav will be explored. based on the characteristic of micro air vehicle, this paper abstracted the aerodynamic evaluation mathematics models, developed a aerodynamic engineering estimation program, all kinds of aerodynamic configuration was compared and analyzed, found the perfect configuration and got the prototype of mav. abstracted the model about the deformation of aerodynamic configuration on base of the method of vortex lattice, developed the program for researching the performance of the deformation of aerodynamic configuration

    本文針對mav的具體特點，抽象出mav的氣動工程計算數學模型，建立起氣動工程估算環境，對各種氣動布局進行了氣動特性比較分析與綜合，尋求出理想的mav氣動布局方案並提出mav原型機，抽象出基於渦格法的氣動外形形變的數學模型，建立起氣動外形形變性能研究環境，探討新型的飛行控制方法和氣動力控制策略，在得出氣動外形形變模型的初始方案后，對其進行進一步的優化，最後得出理想的氣動外形形變執行機構組合陣列。
  11. In the paper, many methods of harmonic analysis are described in detail above all, because they are the important means by which the rudimental data that various harmonic emission estimation methods require can be attained, and influence the final results

    在本文中，首先對諧波分析的方法進行了詳細敘述，因為對諧波的分析是各類諧波發射水平估計方法所需初始數據的獲得方式，同時也影響最終估計的結果。
分享友人
分享到 Line

分享到臉書