重合誤差 的英文怎麼說

中文拼音 [zhòngchā]
重合誤差 英文
coincidence error
  • : 重Ⅰ名詞(重量; 分量) weight Ⅱ動詞(重視) lay [place put] stress on; place value upon; attach im...
  • : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
  • : Ⅰ名詞(錯誤) mistake; error Ⅱ動詞1 (弄錯) mistake; misunderstand 2 (耽誤) miss 3 (使受損害...
  • : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
  • 誤差 : error
  1. In this paper, error sources and the relation between error source and transmission error of harmonic gear drive are deeply analyzed based on its working principle and structure. then synthesize these errors by using stochastic error theory to write out estimative formula that calculate transmission error

    本文點對諧波齒輪傳動的運動精度進行分析研究,從諧波齒輪傳動運動的產生入手,首先對源進行了深入分析,然後對運動進行了分析和綜
  2. Based on fractional sampling method, a new super - exponential iteration decision feedback blind equalization algorithm for severely nonlinear phase distortion channels was proposed

    因此針對嚴頻率衰落和非線性相位失真通道,提出了一種分數采樣的混盲均衡演算法,並獲得了較快的收斂速度和較小的剩餘均方
  3. 2. according to the characteristic of airborne gravity survey, several statistic variables are derived from theory of probability and mathematical statistics combined with knowledge of errors principles. these statistic variables are applie to the significance test of systematic errors in every surveying line

    2 、根據概率論和數理統計的理論與方法及理論,結航空力測量的特點,建立了有關檢驗統計量,並將其應用於航空力測量測線系統的顯著性檢驗。
  4. Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications

    本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術,主要研究成果包括以下幾方面:首先,建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型,分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析,數學模擬結果表明在高緯度地區線性化解析法由於俯仰角分析精度略有下降而不太適;在分析定向精度確定性影響因素的基礎上,提出了雙星定向精度衰減因子odop的概念,揭示了雙星定向特殊表現的內部機理,對實際工程應用具有要的指導意義。
  5. The main work is as follows : 1. an error resilient algorithm to collaborate multiple description coding ( mdc ) and error concealment ( ecn ) is presented. the strategy of this method is to reconstruct the low quality image followed by recovering the lost wavelet tree with error concealment method when end - user receives few descriptions

    碼環境下,要保證解碼端構圖象的質量,就要綜採用多種抗碼方法,本文對錯復原技術的綜應用進行了研究,具體內容如下: 1 、提出了圖象多描述編碼與錯隱藏相結錯復原演算法,在接收端接收到的描述較少時,首先根據接收到的若干描述構低質量的圖象,然後採用錯隱藏方法恢復丟失的子波樹。
  6. The gpss have one output and two inputs which are speed error and its derivative. selecting triangular function as fuzzy variable ' s membership function, mamdani max - min synthetic method as fuzzy inference method and centroid method as denazification method, fuzzy control rules are given according to the control expectation of governor and the experience of operating staff

    這種模糊gpss採用二輸入單輸出結構,以機組轉速及其導數為輸入量,以三角形函數作為模糊量的隸屬函數,根據水電機組穩定控制要求和操作人員的經驗制定控制規則,以mamdani的max - min成法和心法分別作為模糊推理方法和清晰化方法。
  7. 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,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,而且降低了估算,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
  8. The research result indicated : for the strip primary mirror discussed in this article, the hexagon light - weighted cell has the best structural rigidity quality, the square cell is a little worse, the triangle cell is the worst ; there is an optimum on primary mirror thickness ; on condition of 1g gravity load combining with 4 centigrade uniform temperature rising, the thinner and higher of the flexible support reed, the better of the primary mirror surface figure. the decision of the structural parameters of the flexible support reed must take static rigidity, dynamic rigidity, static strength and dynamic strength of primary mirror assembly into account

    研究結果表明:對于本文的長圓形主鏡,採用正六邊形輕量化孔,鏡體結構剛性品質最好,正方形次之,正三角形最;主鏡鏡體厚度存在最佳值;主鏡組件在1g力、均勻溫升4共同作用的工況下,主鏡柔性支撐簧片厚度越小、高度越高,主鏡綜面形( p - v值)越小,但同時主鏡組件的剛體位移增大、固有頻率下降,因此柔性支承結構參數的確定要綜考慮主鏡的綜面形和主鏡組件靜態剛度、動態剛度、靜態強度和動態強度等因素。
  9. Furthermore, the current research about body measuring and modeling is just for costume and military affairs, and pay more attention to the head dimension and shape. with the development of human nature during the manufacturing, body cad model is widely applied in industry design, ergonomics, engineering design, humanics research and iatrology research. the body cad model also can be the basic data for the design of respirator

    本文使用nurbs曲面直接擬的方法對測量的點雲進行曲面構,將系統的優化方法應用到nurbs曲面構中,利用插值曲線對測量點雲進行分塊處理,解決用nurbs曲面擬中曲面的光順與曲面與點雲的之間的矛盾問題,使反求模型中各曲面片之間相互連接、光順過渡且能夠反映出人體頭部的細部特徵。
  10. Comparing and analyzing the synchronous control strategy, which brings up the new method to control the double un - symmetry jars proceed synchronously with the combination of proportional valve and servo valve, which forms closed loop control ; basing on the above methods, models are made to get mathematics models of position control system and to analyze system model theoretically by using pid controller, we can realize regulating parameters, minimizing synchronous errors and enhancing the dynamic performances ; the simulink tool box in matlab software is used to imitate the system according to the model, which not only makes the result visual and easy to adjust the parameters in interactive way but also lets us understand the effects of different parameters and optimizes the dynamic properties. the theory of plc control in dshp is discussed after advanced understanding of the system movements. hardware design and general regulation are given on the base of siemens company products s7 - 200 plc

    本文根據大量的國內外文獻,對研配液壓機的工作原理及設計結構進行了簡介;對位置同步的控制方法進行了比較分析,提出比例閥和伺服閥復控制的閉環結構來對非對稱雙缸進行同步控制電液比例同步控制方案;在此基礎上著對比例閥控非對稱缸建模,最後得到位置控制系統的總體數學模型,從理論上對同步系統動態特性進行了分析,並用pid控制器進行參數整定,減小雙缸同步、提高系統的動態響應性能;其中控制性能的分析藉助于matlab軟體中的simulink工具箱,由已建立的數學模型形成模擬模型,得到可視化的模擬結果,從而利於交互方式下調整參數,了解不同的參數對系統的影響,優化同步系統的動態性能;在深入了解系統的動作特性后,對plc控制研配液壓機的原理進行了探討,針對siemens公司s7 ? 200型plc給出了硬體設計的總體規劃,編制出研配液壓機動作控製程序,在編程中著研究位移傳感器與plc的通訊、雙缸同步運行的pid控制在plc上的實現及bcd碼撥盤輸入程序的植入問題。
  11. During the course of the research, the criterions of the interpolation effect are mean error ( me ), mean absolute error ( mae ), root mean squared interpolation error ( rmse ) and the difference of mean square deviation between the measured and the estimated surface air temperature. the conclusions are as follows : ( 1 ) by contrasting the gaussian weighted model associated with the error modification with the gaussian weighted model, the error modification is proved to considerably ameliorate the precision of spatial interpolation ; ( 2 ) on the base of the gaussian weighted model, taking altitudinal effect into account can reflect the trend in which temperature changes according to the topographic altitude and may ameliorate the precision of spatial interpolation correspondingly and apparently, which indicates that topographical effect on the preciseness of spatial interpolation can not be disregarded in terms of the region with complicated topography ; ( 3 ) the map of daily surface air temperature distribution, using the modified gaussian weighted model a and b, can accurately reflect the temperature - changing - with - topographical - altitude trend. among them, the better is the model a, whose me is below 0. 03 ?

    在此過程中,採用平均( me ) ,平均絕對( mae ) ,插值平均平方的平方根( rootmeansquaredinterpolationerror ,簡稱rmsie ) ,插值前後測站要素值的均方( meansquaredeviation ,簡稱msd )值作為判定插值效果的標準,得出如下結論:通過高斯權法與結逐步訂正的高斯權法的對比,說明結逐步訂正方案的高斯權法可大大提高地面日氣溫的插值精度;在高斯權法中加入海拔影響項可以反映出溫度隨地形高度的變化趨勢,同時也能較大地提高地面日氣溫的空間插值精度,說明在地形復雜的區域,地形影響在插值精度中是不可忽略的;對于高斯權法的兩種改進方案得到的地面日氣溫分布圖都能很好地反映出表面大氣氣溫隨地形高度的變化趨勢。
  12. The existing assembly tolerance analysis and synthesis are mainly applied to the rigid assembly, and not suited to the deformable sheet metal assembly. it is necessary to find a new method that applied to the deformable sheet metal assembly. there is great meaning that we use the new method to make clear the variances sources and to improve the quality of the sheet metal assembly

    現有裝配偏的分析與綜研究主要沿用了剛體裝配理論,不適柔性金屬薄壁件,因此,尋求適用於具有柔性特點的薄板裝配偏研究方法,探明引起裝配偏的各類偏源,對控制轎車車身等薄板裝配偏具有要意義。
  13. Analyze item by item the position of unintact cycle, the running clearance of unintact cycle, locking - deform, datum dimension regulating, repeatly install, power voltage wave and marking running etc. at the same time, we give the calculating formula to calculating the running marking random error, and use it to calculate the system error of big diameter measure instrument - - datum dimension frame error, gyro - wheel diameter error, error caused by circumstance temperature, error caused by backing distance, angle error, delay error of data collecting circuit, lathe main shaft running error, workpiece install partial error

    對不完整圓的位置、不完整圓的轉動間隙、鎖緊變形、基準尺調整、復安裝、電源電壓波動、標記轉動等隨機進行了逐項分析,並給出轉動標記隨機的計算公式。對大直徑測量儀的系統?基準尺尺架、滾輪直徑、環境溫度引起的、後退距離引起的、角度、數據採集電路延時、車床主軸回轉、工件安裝偏心分別進行了計算,最後對進行成。
  14. Developing the model which complies with the wheel trace coincidence of a steering full - trailer ; performing simulating tests and errors analysis

    設計製作了符輪跡轉向全掛車的模型,並進行了模擬試驗及分析。
  15. With the development of productivity and science, the non - orthogonal coordinate measuring system is wanted in more and more situation, however the non - orthogonal coordinate measuring system is analyzed little because of its complexity and multiplicity in the structure. so this paper is worked out to solve it, and it is of great application value

    隨著生產和科學的發展,越來越多的場要求採用非正交坐標系機械繫統,然而非正交坐標系機械繫統由於其結構的復雜性和運運動的靈活性,一直以來缺少對於它的研究,本課題正是在此背景下提出的,因此具有十分要的應用價值。
  16. Frequency response, quantization noise, reconstruction error and its sensitivity to mismatch among adcs are studied at length in prqmf banks adc system, and the theoretic results include : ( 1 ) the distortion / aliasing functions of hybrid filter banks adc system is similar with that of switch capacitor filter banks adc system ; ( 2 ) for wide or narrow band input signal, the effective resolution of the two adc systems is 0. 51og2m bits higher than their adc ; ( 3 ) reconstruction error ' s sensitivity to mismatch among adcs of the two adc systems is reduced effectively than time interleaved adc system

    2對prqmf濾波器組adc系統的頻響、量化噪聲特性、特性以及對adc間的失配敏感性進行了理論分析研究,所得到的理論結果為: ( 1 )混濾波器組adc系統與開關電容濾波器組adc系統的失真/混迭函數一致; ( 2 )無論輸入寬帶還是窄帶信號,這兩種adc系統的有效解析度均比其adc提高了0 . 5log _ 2m比特; ( 3 )這兩種adc系統的對其adc間的失配敏感性均明顯低於時間交織adc系統。
  17. And use relative fitting error to measure statistical data non - uniform error ; then introduce the method systematically of using the fuzzy comprehensive evaluation method to carry on the overall superior test of the government statistical data quality. includes the establishment of step level appraisal target system, target weight determination, calculates the factor weight in various levels, uniform test of judgment matrix, and built up the final fuzzy comprehensive evaluation model of the government statistical data quality according to the above - mentioned standard ; finally selects the partial main social economy total quantity target from chinese statistics yearbook 2003 to carry on the real diagnosis analysis : ( 1 ) confirm these social economy total quantity targets using the description statistics and the k - s inspection method to obey the lognormal normal distribution. ( 2 ) according to the two levels of inspection methods which this article proposed to carry on accuracy and the overall superior test for these social economy total quantity targets

    本文首先從統計數據及質量的涵義出發,全面系統的介紹了統計數據質量的概念;其次,從研究統計數據的分佈規律入手,對統計數據準確性檢驗問題進行了探討,利用對數正態分佈檢驗對反映研究對象規模大小的統計數據的質量及異常數據進行定量檢查和識別,並利用相對擬計量統計數據的非一致性;接著系統介紹了利用模糊綜評價方法對政府統計數據質量進行整體優度檢驗的思路,具體包括建立遞階層次的評價指標體系,指標權的確定,計算各層次中因素的權,判斷矩陣的一致性檢驗,並根據上述標準建立了最終的政府統計數據質量模糊綜評價模型;然後通過從2003年中國統計年鑒資料中選取部分主要的社會經濟總量指標進行實證分析: ( 1 )利用描述統計和k - s檢驗法來驗證這些社會經濟總量指標服從對數正態分佈的規律; ( 2 )按照本文提出的二級檢驗法來對這些社會經濟總量指標進行準確性和整體優度檢驗,從而達到綜評價政府統計數據質量的目的;最後對這種二級檢驗法的優點和不足進行小結,提出今後應該努力改進的方向。
  18. This paper mainly studies the coupling error caused by induction voltage phase difference, and fluctuation of directional sensitivity caused by changes in near - field difference slope. the trend of system sum and difference phase difference, directional sensitivity and cross - coupling with change in distance is compared and discussed when the antenna is in the near - field and at a certain elevation

    本文著研究了因近場感應電壓相位引起的耦,以及近場天線斜率變化引起的定向靈敏度的變化;討論了天線在近場並有一定仰角的條件下,隨著距離的變化,系統和、相位、定向靈敏度與交叉耦的變化趨勢。
  19. The main sources of uncertainty come from non - linear calibration models and pre - processing step of samples

    測量的主要來源是樣品校正曲線擬、樣品測定復性標準偏
  20. The error analysis shows that the main features of frf can be extracted by using less principal components, and the more the principal components, the more precise the reconstructed frf

    分析表明,可以用較少的主元向量來綜表徵高維的結構頻響函數;並且選取的主元個數越多,對頻響函數的表徵越精確,也越小。
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