解算誤差 的英文怎麼說
中文拼音 [jiěsuànwùchā]
解算誤差
英文
resolution error- 解 : 解動詞(解送) send under guard
- 算 : Ⅰ動詞1 (計算數目) calculate; reckon; compute; figure 2 (計算進去) include; count 3 (謀劃;計...
- 誤 : 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 : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
- 解算 : resolving; calculating解算機[器] solver; 解算誤差 resolution error
- 誤差 : error
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The relation of radius of curvature and error as well as formulas of increasing parameters on condition of constant error are diverted. the equation of the line on the center of approximate circular arc is obtained , and it can avoids the trouble that numerical solution owns possibility of no convergence and simplifies node calculation of non - circular curve
導出了曲率半徑與逼近誤差之間的關系和等誤差條件下的參數遞推公式,建立了通過逼近圓弧圓心的直線方程和圓心坐標計算公式.按這種方法用圓弧逼近平面參數曲線,不需要求解非線性方程組,避免了計算可能不收斂的麻煩,簡化了非圓曲線的節點計算過程Finally, this thesis discussed these following questions : first, the algorithm of used the error image for improving the purpose of the edge detection. secondly, we have transformed the solved question of the first and the second directional derivative to frequency domain and founded they have a single formulae in frequency domain. thirdly, we have described the singular signal and the noise by using the correlations of the neighbor data after wavelet transform
最後,在傳統的邊緣檢測演算法和小波分析的邊緣檢測演算法之外,對以下幾個方面也進行了一些討論: 1 )利用誤差圖像來提高邊緣檢測效果的演算法; 2 )將求解任意方向的一階、二階方向導數的問題轉換到頻域中去求解,發現在頻域中它們具有簡單易用的公式,使得原來求解任意方向的一階、二階導數的比較困難的問題變得容易實現了。Finite element method ( fem ) is an approximate solution in engineering, there exists some error in the analysis result, so it is important to check the result and to geta right view of the result in the analyzing process, then this can lead the right analysis in the next step
摘要有限元法是一種工程近似求解的方法,存在誤差,所以在用有限元軟體進行工程分析計算時,很重要的一點是分析過程中必須審視分析的結果,對結果有正確的認識,從而指導工程分析的正確進行。Abstract : in fourier transform profilometry, because of the nonlinear relationship between the irradiant incident upon a ccd dete ctor andthe voltage it outputs, it will cause phase evaluation errors. here, we ex plain the errorsource by theoretical deducing, then make a simulation. at last, a method to decrease thiserror is put forward
文摘:在傅里葉變換輪廓術中,由於ccd探測器光電響應的非線性,將在測量中引入高次項,從而對相位的求解造成較大誤差,通過理論的推導定性地解釋了誤差的來由,並用計算機進行了模擬計算,最後提出了減小誤差的方法。( 2 ) the liman problem is normally adopted to check the liability of numerical method. the calculation error was within 9 % by comparison with the theoretic solutions of liman problem in the following case, the dimensionless calculation length was 2 with high pressure zone 0. 8, and the dimensionless state parameters were p1 = 2, p2 = 1, p1 = p2 = 1, u1 = u2 = 0. experiment results in literature [ 8 ] were used to check the adaptability of the numerical model developed here for unconfined gas cloud explosions and the calculation error was within 13 %
( 2 )數值方法的可靠性通常用黎曼問題的解析解檢驗,本文以無量綱計算區長度為2 ,高壓區長度為0 . 8 ,狀態參數為p _ 1 = 2 , p _ 2 = 1 , _ 1 = _ 2 = 1 , u _ 1 = u _ 2 = 0條件下的黎曼問題解析解對所編制的爆炸場計算程序進行了考核,結果表明該程序的計算誤差在9以內;為考核本文計算模型預測開敞空間氣雲爆炸的適用性,以文獻[ 8 ]的實驗數據進行了校核,計算誤差在13以內。Experiment results show : ? he theory and method of information content could play an important role in the case study on the accuracy and application of dem. ( 2 ) in the loess plateau area, there are much difference between 5m resolution dems of 1 : 10000 map scale and 25m resolution dems of 1 : 50000 map scale while gathering terrain characteristic information, and yet the spatial structure of dem error have discipline and measurability on statistics. ( ? the results could offer fundamentals and methods to people on their work to research the terrain information content of dems with different scale level
研究結果顯示: 1 、地形信息容量的理論與方法對于dem精度與應用適宜性的研究具有重要的作用; 2 、在黃土丘陵溝壑區,同1 : 1萬比例尺5米解析度的dem相比, 1 : 5萬比例尺25米解析度dem在提取地形特徵方面具有較大的差異,但誤差的量值與空間分佈具有統計上的規律性與可估算性; 3 、以上研究結果可望為其它各級比例尺dem地形信息容量的研究提供新的理論基礎與技術方法,也可為有關規范、標準的制定提供依據。With the experiment part, the errors of sk - 21 nc machine tool have been measured, and a serial of data is gotten which lead to the error discrimination. ( 3 ) based on the kinematical theory of mbs, the calculation methods for the ideal center envelop curve of grinding wheel on cam grinding, the practical cutter track, inverse contour of cam, ideal nc instructions, precision nc instructions, the inner / outer normal and the fitting criterion of curve have been all discussed in detail in this paper
( 3 )通過精密加工的約束條件方程,探討理想刀具路線、逆變數控指令與實際刀具軌跡之間的映射關系,解決誤差補償技術提高加工精度的核心問題? ?當要求數控磨床的砂輪中心準確到達給定的理想點時,精密數控指令值究竟該是多少,如何能夠通過計算,獲得這樣的數控指令值,給出經修正的數控指令計算方法。Comparing the calculated results and the theoretical results, it can discover that the error is not out of the permitted range. then, the present method is efficiency and can be applied to engineering
計算解和理論解的誤差分析表明,最大誤差都在允許范圍內,從而驗證本方法是行之有效的,可以用於工程實際。With the mathematic model of tracking beam current by velocity, real - time tracking can be obtained ; with current simulation controlling transducer and subsection linearity, precision of velocity ( error in ? 1 % ) is triumphantly can be controlled ; with inspection of the pulse numbers of switches, the position of all vehicles are checked to eliminate the error of calculating distance between all ones
通過建立速度跟蹤束流的數學模型,較好地解決了速度跟蹤束流的實時性問題;通過採取用電流模擬量控制變頻器和分段線性處理的辦法,成功地解決了速度精度問題(誤差在士1 %內) ;通過檢測接近開關觸發的脈沖數,適時校核所有小車位置,消除各車之間距離計算誤差,從而很好地解決了距離累計計算誤差。The error of the calculation methods used in this paper is estimated by comparing the calculation results of ge, gap, gaas arid inp with their experimental results. the error due to ignoring the lattice aberration causing by substitutional atoms is also discussed. the way to increase the accuracy is discussed
通過比較ge 、 gap 、 gaas和inp的計算結果和實驗結果之間的差別,對該方法的計算誤差進行了估算,分析了由於忽略雜原子取代所導致的晶格畸變產生的誤差,並提出了解決辦法。The water quality respond relation of input - output measurements are established by systematic theory in this paper. according to the peculiarity of hydrology and the necessity of water quality inverse problem the multi - parameter inverse problem model based on ordinary differential equation is developed. the existence and uniqueness of the solution of the ordinary differential equation about two parameters or multi - parameter are to be proved. the unstability depending on errors between monitoring data and interpolation approximate data are analyzed and demonstrated. cubic spline interpolation function, the least two multiply and positive rule method are conjoined for obtained solution of multi - parameter. the results from this algorithm indicats its efficient to the multi - parameter identification in water quality modeling
本文應用系統理論,建立了水質多參數輸入輸出之間的響應關系;根據河流水文水質變化特點和參數反問題的需求,建立了水質常微分方程多參數反問題模型.根據常微分方程參數反問題的數學理論,作者給出了兩參數和多參數水質常微分方程反問題的解的存在性、唯一性的理論證明過程和結論;還針對水質現有監測資料的測驗誤差和插值近似計算誤差造成參數反問題的不穩定性,將三次樣條插值函數、超定方程最小二乘法和正則化演算法有機地結合使用,成功地給出了水質參數反問題的穩定化演算法.最後給出了應用計算結果The mode superposition method, based on equivalent linearization and forcing decoupling method of non - classical damping matrix of energy dissipation systems, is the just one. at the same time, iterative process will increase computing workload and forcing decoupling method increase error
基於等效線性化的強行解耦振型分解法在一定程度上符合此要求,但此方法存在著迭代計算工作量大、強行解耦增大計算誤差的不足。In procedure - controlling design, based on identifying the number and position of the vehicles, we settle three technical problems such as real - time tracking beam current by velocity, precision of velocity and eliminating cumulate error from distance calculation
在過程式控制制子系統方案設計中,以識別小車的車號和位置為基四川大學碩士論文礎,重點解決了速度實時跟蹤束流,速度的精度,消除距離累計計算誤差這三個技術難點。Chapter 3 is devoted to the study of the convergence theory of a dual algorithm for unconstrained minimax problems. a dual algorithm for solving unconstrained minimax problems, based on the penalty function of bertsekas ( 1982 ), is presented. we prove that there exits a threshold of the penalty parameter satisfying that the sequences generated by the dual algorithm converge locally to the kuhn - tuker point of the unconstrained minimax problems when the penalty parameter is less than the threshold
第3章給出無約束極大極小問題的一個對偶演算法的收斂理論,給出一個基於bertsekas ( 1982 )罰函數的求解無約束極大極小問題的對偶演算法,證明罰參數存在一個閥值,當罰參數小於這一閥值時,該對偶演算法產生的序列局部收斂到問題的kuhn - tuker點,並建立了參數解的誤差估計式,同樣估計了罰函數的hesse陣的條件數,它也依賴于罰參數。Hence, the kalman filter gain matrix can be computed off - line using matlab. the research uses compensating method to solve kalman filtering divergence problems
針對計算誤差引起的濾波發散問題,本文採用性能退化參數補償法,初步解決了濾波的發散問題。Chapter 2 establishes the theoretical framework of a class of dual algorithms for solving nonlinear optimization problems with inequality constraints. we prove, under some mild assumptions, the local convergence theorem for this class of dual algorithms and present the error bound for approximate solutions. the modified barrier function methods of polyak ( 1992 ) and the augmented lagrange function method of bertsekas ( 1982 ) are verified to be the special cases of the class of dual algorithms
第2章建立求解不等式約束優化問題的一類對偶演算法的理論框架,在適當的假設條件下,證明了該類演算法的局部收斂性質,並給出近似解的誤差界,驗證了polyak ( 1992 )的修正障礙函數演算法以及bertsekas ( 1982 )的增廣lagrange函數演算法都是這類演算法的特例。The main work of this thesis includes : 1. using energy theory, the cable sag and bending stiffness effects are investigated on the determination of cable tension forces through cable ' s fundamental frequency. based on the curve fitting, the practical formulas are proposed where the cable tension can be easily estimated using measured fundamental frequency
本文的主要工作包括: 1 .考慮拉索的垂度和抗彎剛度對基頻的影響,用能量的方法,並輔以曲線擬合,提出了由基頻計算索力的實用公式,公式與理論解的誤差在以內,並對公式的適用范圍進行了討論。Three conclusions are attained among the numerical simulations : first, the lsm method is the optimum method to retrieve the concentrations of the gases. second, the mlsm method does well in calibrating the misalignment. third, only if the snr is higher, the results of the retrieve can be attained truly, and the errors are in the permitted range ; however when the snr is very low, the reliability of the retrieve will decrease
從文中模擬的計算結果中,可以看出,一是線性最小二乘擬合是求解多組分氣體所構成的矛盾方程組的最佳工具;二是根據坐標匹配變換,採用mlsm反演方法,很好的校正了譜對準偏差,滿足監測的要求;三是信噪比較高時能很好的反演出濃度值,並使的計算誤差在允許的范圍內;而在信噪比比較小時誤差明顯增大,反演結果的可信度降低。According to the current codes, piles under inclined loads top are analyzed respectively under axial and lateral loads with the results superposed, in which inaccurate error is inevitable. focusing on this point, the analysis of pile and pile group under inclined loads are thoroughly discussed in this article
本文針對我國現行規范將樁頂傾斜荷載分解為豎向和水平荷載分別計算再進行迭加而存在的計算誤差較大的不足,對傾斜荷載下基樁及群樁的受力分析進行了深入的探討。When the difference method is used to solve temperature problem, the error of adiabatic temperature rise of concrete is often caused by a difference step that is too big, at the same time computation workload increases greatly because of a difference step that is too small. based on the basic characteristics of the difference method, this paper introduced one kind of correcting method, which can assure solution precision but does n ' t increase the calculating workload
針對差分法進行不穩定溫度場求解時,差分步長過大會造成絕熱溫升計算誤差加大,差分步長過小又會引起計算量成倍增長的問題,根據差分法求解的基本特點,提出了一種誤差修正方法,在計算量得到成倍提高的同時,保證了求解精度,較好的解決了這一問題。分享友人