未定誤差 的英文怎麼說

中文拼音 [wèidìngwùchā]
未定誤差 英文
indeterminate error
  • 未 : Ⅰ副詞1 （沒） did not; have not 2 （不） not Ⅱ名詞1 （地支的第八位） the eighth of the twelve ear...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 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...
  • 未定 : uncertain; undecided; undefined
  • 誤差 : error
  1. According to the geometry of slope measurements for the subjective wavefront optometer, a wavefont reconstruction model using zernike polynomial with normalization factor is put forward. based on householder transformation and gram - schmidt orthogonalization method, two methods for working out unknown zernike coefficients are bring forward. the error propagation parameter for the wavefront reconstruction model is deduced

    深入研究了帶標準化因子的zernike多項式的性質;針對主觀式像差儀波前斜率采樣方案，提出了採用帶標準化因子的zernike多項式對眼測試波前進行重建的數學模型;提出了兩種求解方法，即基於householder變換求解法和基於gram - schmidt正交化求解法，用於確定重建模型中的未知模式系數;推導出了該波前重建模型對斜率測量誤差的傳遞系數。
  2. Then, the half - carbonated zone ( transition zone ) phenomenon is mentioned and verified by way of using xrd & tg, thus giving contradictor of the existence between the half - carbonated zone and the premise of phenolphthalein test method - no existing obvious transition zone between carbonated area and non - carbonated area

    試驗結果證明：在混凝土碳化區和未碳化區之間存在著部分碳化區，而這一中間過渡區域的存在可能使得目前普遍採用的酚酞（ phenolphthalein ）試劑測定碳化深度的方法易產生誤差。
  3. Thirdly, an ideal satellite orbit is simulated, and on this foundation, we establish some typical simulation and testing circumstances. lastly, after simulation in the simulation and testing circumstances, we compare the performance of ukf and ekf. and then, based on the outdoor experiment of the vehicle, an analysis and contrast between our simulation results and commercial data process software is carried out, and the conclusion is obtained

    首先在第三章提出的目標運動模型的基礎上建立了系統狀態方程;其次簡要分析了衛星導航系統中的各類誤差，建立了基於偽距觀測量的系統觀測模型;第四節利用yuma格式歷書數據模擬了未受攝動影響的衛星軌道，並在此基礎上建立了幾種典型的動態模擬測試環境;第五節為模擬分析和比較，先對ukf演算法和ekf演算法在動態模擬測試環境中進行了模擬比較，然後針對外場試驗，對非線性濾波獲得的定位結果與商業軟體進行了分析比較，並得出結論。
  4. Secondly, in phase unwrapping to overcome the spread of wrong point, changing the patch of unwrapping phase is done to improve the correctness of it. then, the relation between the unwrapping phase and the height of reconstructed object is discussed detailedly. the data processing, algorithm analysis and reconstructing object are done for the collecting fringe image which are all based on matlab language, in all these achievements, the improvement and innovation aspect are following : a ) in order to stabilize the interference fringe, a new equivalent shifting object method is presented by using fringe stabilizing device to stabilize the interference fringe though moving object and ccd camera which fixed on a precise moving platform together, the experimental result shows the fringe drift is less than a / 20 in five minutes, and the equivalent phase shifting precision is x / 100

    論文在全面闡述了光學三維輪廓位相測量術的發展、應用現狀、研究熱點及未來發展趨勢的基礎上，簡要介紹了傅立葉變換和相移位相輪廓測量術的基本原理，對兩種測量方法存在的問題及誤差進行詳細分析和比較；針對位相解包裹錯誤點的傳播問題，作者通過改變解包裹路徑來提高位相解包裹的正確性；分析討論從解包裹位相（ x ， y ）到再現物體的高度h （ x ， y ）物理量之間的關系，研究相應的演算法，利用matlab平臺，對實際採集的條紋圖像進行處理和輪廓重構，其中改進及創新工作主要表現在以下兩個方面： （ a ）針對干涉型結構光場干涉條紋出現的漂移抖動對相移的影響，提出了一種用條紋穩定器穩定干涉條紋，用精密移動平臺使物體和ccd攝像頭同步移動實現等效相移的方法，建立了相應的測量系統，系統的條紋穩定可以達到。
  5. The new ways that solve multiple objectives decision making under risk into probability permanent type : decision making diagram method, matrix analysis method, multiple objectives markov method, the shortest distance method, successive type variation multiple objectives decision making under risk method and fuzzy analysis decision making method. 3. the new modes that solve multiple objectives decision making under risk into probability interval type and uncharted type : weighted method and sorting method 4 the new repent average value criterion that handle multiple objectives decision making under risk into probability uncharted type and generalizing the criterions that have been used into one objective decision making under probability into uncharted type to multiple objectives decision making under probability into uncharted type. 5. giving the error analyses method and decision result regulating method that been used into multiple objectives decision making under risk

    2 、探討了『決策圖法』 、 『矩陣法』 、 『多目標馬爾科夫法』 、 『最小距離法』 、 『連續型變量的多目標風險型決策法』和『模糊分析決策法』等解決概率固定型的多目標風險型決策的新方法。 3 、探討了『加權法』 、 『排序法』兩種解決概率區間型和未知型的多目標風險型決策的方法； 4 、在概率未知型的多目標風險型決策中改進了『後悔值準則』 ，提出了『後悔均值準則』 ；並將單目標概率未知型風險型決策的準則推廣運用到多目標概率未知型的風險型決策中去； 5 、探討了多目標風險型決策方法誤差分析及決策結果值調整的方法。
  6. This paper also points out the consistency that can be generalized more than one dimension. so, we achieve the large sample property - consistency of this class of model on the fixed design. in this paper, for fixed design points xi ; under the assumption that the unknown function g is continuous function and the moment of random error exists and is finity, we discuss and show that the estimators n, gn and n2 for, g and 2 have strong consistency, p th - mean consistency for more general nonparametric weighted fuction

    本論文在x ；是固定設計的情況下，假定未知函數9 （ ? ）連續，對非參數權函數的條件更為一般和基本，並對隨機誤差e ；的矩的要求有限，討論並證明了在這些條件下， p ； g （ ? ）的估計量札lin （ ? ）及誤差方差a 』的估計量枯相合性和叭三2 ）階平均相合性
  7. 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（
  8. The future wireless mobile communication systems are expected to provide ubiquitous, high - quality, and high - rate mobile multimedia transmission. however, hostile multipath fading radio conditions give rise to serious inter - symbol interference ( isi ) ; even worse, wireless channel are often time varying, which makes the system more vulnerable and more difficult to track the channel state. orthogonal frequency dvision multiplexing ( ofdm ), which is inherently resistant against isi, has invoked a popular research interest in recent years, and has been a promising candidate technology of the physical layer for future weideband high - date - rate wireless communications. notwithstanding, ofdm is much more vulnerable to errors of both time and frequency synchronization and to that of channel estimation, and how to obtain correct timing and channel estimation efficiently is highly critical to ofdm systems. the dissertation will focus on both of the aspects of ofdm systems mentioned above

    但是無線環境的多徑特性造成通信系統中嚴重的符號間干擾，同時無線通道的時變性使得通道特性跟蹤復雜。而正交頻分復用技術（ orthogonalfrequencydivisionmultiplexing ， ofdm ）正是一種解決符號間干擾的有效傳輸手段，因此ofdm技術作為未來寬帶高速率無線通信的物理層候選技術在當前引起了一股研究熱潮。但ofdm系統對定時同步誤差和通道估計誤差非常敏感，如何在ofdm系統中準確快速地實現符號同步和通道估計是至關重要的，本論文將重點針對這兩個問題進行討論。
  9. It consists of an indirect adaptive fuzzy controller, which is constructed by modeling the unknown part of system, and adaptive law given by using lyapunov synthesis approach

    該方法利用模糊邏輯系統來逼近未知非線性部分。在把逼近誤差看作系統干擾的情況下，給出了模糊系統參數基於lyapunov穩定的基礎上的自適應律。
  10. Firstly, based on backstepping and the supervisory control strategy, a robust adaptive fuzzy controller is designed for a class of nonlinear systems. the first type fuzzy logic system is used to approximate the unknown part of the process. the adaptive compensation term of the optimal approximation error is adopted

    本文首先針對一類不確定非線性系統，基於backstepping方法，利用監督控制，引入最優逼近誤差的自適應補償項，並利用型模糊邏輯系統逼近系統的未知部分，提出了一種魯棒自適應模糊控制器設計方案，運用李亞普諾夫第二方法，先證明了閉環模糊控制系統全狀態有界，再證明了跟蹤誤差收斂到零。
  11. Expanded mixed finite element approximations of the parabolic problems are considered. error estimates for the scalar unknwon, its gradient and its flux in l2 - norm are obtained for this new mixed formulation

    通過數值分析進一步說明擴展混合元方法是穩定的，並得到了未知函數、未知函數的梯度和流體流量的l ~ 2 -誤差估計。
  12. On stability and error estimaes for a class of weighted semi - implicit schemes of the incremental unknowns methods

    一類加權半隱格式增量未知元方法的穩定性和誤差估計
  13. In order to validate the correctness of the simulation, the flow velocity of x vector is measured to compare the flow field between the simulation and the experiment in wind tunnel. the results indicate that the flow field is improved and more stable than the original shield flow field. the tendency between the improved shield and the original shield from simulation is consistent with the tendency from experiments

    開口罩蓋流場由於相對穩定，模擬和試驗的測點流速平均相對誤差為15 ，未開口罩蓋流場中由於渦流影響較大，平均相對誤差為22 . 45 ；同時驗證了結構改進前後罩蓋流場的模擬比較結果和試驗比較結果的趨勢是一致的。
  14. The network weights are regulated according to the error between the reference model and the plant, and the structural uncertainties and unknown disturbances are counteracted on line by the neural network

    該控制器根據被控對象和參考模型之間的誤差調整網路權值，在線抵消被控對象的未建模動態特性和不確定因素。
  15. Mr lam emphasized, " the science of tsunami prediction is not yet mature and there is always some degree of inaccuracy in such predictions. so the public should not assume that there would always be warning before a tsunami arrives

    林超英強調：海嘯預報其實仍然是一門未十分成熟的科學，預報存在一定程度的誤差，所以大家不要誤會海嘯來臨之前必有警報。
  16. In this thesis, the fault location algorithms of hv transmission line are evaluated at first, then the factors that affect the accuracy of the fault location are analyzed, and the proper solutions are presented

    本文首先對現有高壓輸電線路故障定位方法進行了綜合評述，在此基礎上對造成穩態故障測距誤差的一些尚未獲得滿意消除的因素進行了深入的探討，並提出了相應的解決方法。
  17. Abstract : a group of phase shifting algorithms is derived by the method of undeterminedcoefficients ( ucm ). the unknown coefficients are set in a general algorithm expression, and then solved by adding bonding equations according to error compensation requirements. thus the algorithm design and error alalysis are carried out simultaneously. phase shifting algorithms derived by this method are insensitive to one or more error sources which are considered in algorithm design

    文摘:提出了一種以誤差補償為目的的新的相移演算法設計方法?待定系數法，該方法首先在演算法表達式中引入一系列待定參數，根據對誤差補償的要求提供約束方程，從而解出這些未知參數.待定系數法使得演算法設計和誤差分析是同時進行的，改變了以往先設計演算法再進行誤差分析和評價的過程，由待定系數法導出的相移演算法對演算法設計中所考慮的誤差源具有良好的補償性能
  18. The new method is a combination of characteristic approximation to handle the convection part, to ensure the high stability of the method in approximating the sharp fronts and reduce the numerical diffusion, a smaller time truncation is gained at the same time, and a mixed finite element spatial approximation to deal with the diffusion part, the sealer unknown and the adjoint vector function are approximated optimally and simultaneously

    此方法即為對方程的對流項沿流體流動的方向即特徵方向進行離散，從而保證格式在流動鋒線前沿逼近的高穩定性，消除了數值彌散現象，並得到了較小的時間截斷誤差；另一方面，對方程的擴散項採用混合元離散，可同時高精度逼近未知函數及其伴隨向量函數，理論分析表明，此方法是穩定的，具有最優的l ~ 2逼近精度。
  19. Methods to estimate bias error, dispersion and first round hit probability for artillery system are shown. ( 2 ) error - sources of position survey preparation, target position decision, ballistic preparation, meteorology preparation, models, technical preparation and the rest for deliberate preparation as well as their effects on initial firing data errors are discussed in details

    （ 2 ）較詳細地討論了精密法決定射擊開始諸元中，測地準備、決定目標位置、彈道準備、氣象準備、模型、技術準備、其它未測定或未修正誤差等誤差源等及其對射擊開始諸元的影響。
  20. But according to the concluding process of dd model, actually the residuals from dd model regression, are only the proxies of the estimations errors of current accruals. but total accruals contain current accruals and non - current accruals, so if we directly use the proxies of current accruals as the proxies of total accruals, is it correct ? jones model is usually used to calculate the abnormal accruals reflecting the extent to which the management manipulate the earnings, but the management intent to manipulate is unobservable and likely idiosyncratic and sporadic

    但從理論上分析，由於利用dd模型回歸計算殘差過程中未考慮非流動性應計，因此該殘差中未能含有非流動性應計的錯誤信息，可能會使該指標在計量盈餘質量時產生一定的噪音;對于瓊斯模型，其更多地反映的是基於管理者有一定意圖的盈餘管理，而不能有效地計量無意圖的評估錯誤，因此使用該指標也可能會在計量盈餘質量時產生一定的誤差。
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