誤差級數 的英文怎麼說

中文拼音 [wùchājíshǔ]
誤差級數 英文
error series
  • 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...
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 誤差 : error
  • 級數 : [數學] progression; series; number of stages; number of steps; stage number級數變換 transformatio...
  1. ( 3 ) in the dy - lamp experiments, we study the spectrum distribution of relative - energy. firstly, it is tested by providing bandwidth and the numbers of the band according as a standard of the solar simulator. the result shows it cannot achieve a standard of the solar simulator that the spectrum distribution of the dy - lamp is simulated the solar spectrum ; however, if according as b standard, then it can attain the request of b standard of the solar simulator

    研究了鏑燈光譜相對能量分佈，首先根據a級模擬器提供的帶寬和帶數對鏑燈的光譜能量分佈進行了測試，測試結果表明，利用鏑燈來模擬太陽光譜達不到a級模擬器的要求；根據b級模擬器提供的帶寬和帶數對鏑燈再次進行測試，並與b級的光譜失配誤差進行比較，結果表明，利用鏑燈來模擬太陽光譜可達到b級模擬器標準。
  2. Therefore, a model of three sectors, respectively referring to domestic sector, manufacturing export sector and primary product export sector, has been established here to measure the technology spillover effects of export on domestic sector. finally, based on a broader framework, this dissertation went on to investigate the relationship between openness and china ' s economic growth, while the result shows that though there exists a notable dispute about how to measure the degree of china ' s openness, the index of trade dependence still maintains the better one to reflect china ' s economic openness. in the meanwhile, impulse response function ( irf ) method and forecasting errors variance decomposition ( fevd ) method, both of which are based on the vector auto - regression ( var ) system, are used here to investigate the dynamic relationship between openness and china ' s economic growth

    與傳統理論不同，新增長理論和新貿易理論都強調技術進步的作用，因此本文構建了一個三部門的技術外溢效應模型（國內部門、工業製成品出口部門以及初級產品出口部門） ，考察了工業製成品出口和初級產品出口對國內非出口部門不同的技術外溢效應；第四，從更加廣闊的視野就貿易開放度與中國經濟增長問題進行研究，有關貿易開放度如何度量一直是存在較大爭議的問題，本文首先對該類研究文獻進行了較為詳盡的述評，然後運用生產函數方法對所選取的5個貿易開放度度量指標進行了檢驗，結果發現盡管一些已有研究認為外貿依存度無法真實度量一國經濟開放水平，但是本文研究結果表明外貿依存度仍是度量我國貿易開放度的較好指標，進一步採用基於var系統的脈沖響應函數法以及預測誤差方法分解法對貿易開放促進經濟增長的作用進行了動態刻畫。
  3. In addition, these methods rarely consider the case of multi - stage preloading. several studies has been made to solve these problems : ( 1 ), an error processing is present to manage settlement data. based on fairing filtration theory, a fairing program is compiled to fair the observed data. ( 2 ), according to classical consolidation theories, an analysis model of settlement data has been built under conditions of multi - stage preloading

    針對目前存在的問題，本文主要做了以下研究工作： （ 1 ）建立了沉降觀測數據誤差處理流程，並基於光順濾波理論，對沉降觀測數據進行光順處理，編制了光順程序； （ 2 ）結合經典固結理論，建立了分級加載條件下沉降數據分析模型。
  4. The experimental results show that the contacting force error between real phase track and ideal phase track can be reduced by human - simulated intelligent parameter - adjusting level control of force sensing in remote welding, which makes the operator possess a better force telepresence, enhance the ability of controlling complex welding processes, and improve the remote welding quality

    實驗表明，通過遙控焊接仿人智能力覺參數校正級控制，能減小焊接力覺實際相軌跡與理想相軌跡誤差，使焊接操作者產生較好的力覺臨場感效果，增強對遙控焊接復雜任務的操作能力，提高遙控焊接質量。
  5. In this paper, we expand eigenvalue of poisson equation using bilinear element, by the formulation of the error expanition, we can conclude that it is a upper bound. and by two numerical example, we computer the approximate eigenvalue of poisson equation in square and l - shape domains, then we analyses the approximate eigenvalue. we also extraplate the error expansion and enhance the accuracy of the eigenvalue form the second order to the forth order

    本論文對poisson方程的特徵值採用雙線性元進行展開，得到了誤差展開式，通過誤差展開式，我們能得到特徵值是上界。通過數值算例，計算方形與l形區域上的poisson方程的近似特徵值，並對數據進行分析，驗證了理論的正確性，然後通過對誤差展開式外推，收斂級數可以從二階提高到四階，得到了高精度的解。
  6. Chapter 4 : the influence of different phase - shifting angle of reference wave in recording, of the phase - shifting error and of the quantization error on the quality of the reconstructed image is investigated respectively in two - step phase - shifting inline digital holography. and an effective method of eliminating the phase - shifting error is presented, in which the summation of the intensity bit errors of the reconstructed image is taken as an evaluation function for an iterative algorithm to find the exact phase - shifting value. the feasibility of this method is demonstrated by computer simulation

    通過數值分析不同相移角的選取對再現像的強度誤差的影響，發現再現像強度誤差依賴于記錄時相移角的選取，當相移角在一定范圍內，其再現像的強度誤差相對較小；提出了一種有效消除相移誤差的新方法，並將其應用於二步同軸相移數字全息，對此進行了計算機模擬，得到了很好的結果，證明該方法對于相移誤差的消除是很有效的；對量化誤差所作的數值模擬發現，當信號被量化成8比特（ bit ） ，即256個灰度級以上，量化噪聲的影響相對較小。
  7. With the development of high - technology, all trades " production and development need electric power which is one of the main energy. so the accuracy of electrical parameter caculation is very important for our country ' s economic development. the normal usage of ac indictor is very important for guaranteeing electricity ' s safety production and accuracy of electrical parameter caculation. now the area of domestic ac indictor has lots of shortcomings such as demanding many people synchronous proceeding, equipment operation complicacy and personnel error etc. so it can not demand the need of modern ac indictor checking

    因此電參數計量的準確可靠，對保證我國經濟的發展至關重要。交流儀表的正常使用，對保證發供電的安全生產、電能計量的準確可靠、電參量量值傳遞的準確可靠，發揮著至關重要的作用。目前國內交流指示儀表領域存在需要多人同步進行、校驗設備多、操作復雜、人員誤差大和勞動效率底等諸多缺點，加之電工校驗臺技術等級低，已經無法滿足現代化校驗交流指示儀表的需要。
  8. The functional descriptions of these error mechanisms which can reveal how errors of various blocks in adc affect the output sample are provided ; analyses show that the first stage of the converter is dominant in a pipeline

    首先，通過研究流水線采樣保持電路、子adc 、子dac和殘差放大級的主要誤差機制，用函數表達式將誤差等效到采樣輸出端，量化各部分誤差對系統性能的影響。
  9. Firstly, a new joint filterbank precoders and decision feedback equalizers structure is proposed, and the corresponding optimization result based on the maximal mutual information criterion is derived. secondly, the concept of dt canonical model is proposed, which is very suitable for the task of blind signal processing based on the second - order statistical of the observations. thirdly, the methods of blind equalization and identification of the tv dispersive channels are researched systematically based on the proposed dt canonical model, and a subspace blind identification algorithm of the time - invariant channel matrix is developed

    本文創新性的成果在於：提出了預編碼-判決反饋聯合均衡系統結構，並從理論推導得出了對應的最大互信息量最優化設計結果；首次提出了時變色散通道的離散正則模型概念，該模型適宜於利用觀察數據的二階統計量進行盲信號處理；基於離散正則模型對時變色散通道進行了系統的盲均衡和盲辨識方法研究，提出了對時不變通道矩陣的子空間盲辨識演算法；針對誤差傳播效應問題，提出了可以消除誤差傳播效應的兩級盲辨識演算法；提出了基於離散正則模型的直接盲均衡演算法；提出了基於特徵恢復思想的神經網路直接自適應盲均衡演算法。
  10. Aees employs the multi - staged digital filter algorithm to reduce random error. meanwile, the system correct zero deviation through linear opreation. the instrument, from hardware aspect increases the feature of anti - interference by the way of reasonable layout, sepration of digital and analogue

    系統採用了中值濾波和滑動平均濾波相結合的多級數字濾波演算法來減小隨機誤差，並以精密基準電壓作為比較信號的輸入，由智能系統通過線性運算，實時地修正、校準測量數據，減小系統的零漂，實現自動定標並提高測量的精度。
  11. A batch least - squares maximum likelihood estimator is employed to calibrate the model coefficients of accelerometer and a polynomial post - fit method is used to establish temperature models of these coefficients. the temperature models of accelerometer bias and scale factor of accelerometer are established between - 20oc and 50 oc. after compensating the temperature error by using these models, the post - fit residuals of the accelerometer output have been improved to 10 ? 5 g, and the trend term of accelerometer changing with temperature basically vanished

    採用最小二乘極大似然估計和多項式擬合的方法，分析加速度計靜態模型系數隨加速度計殼體溫度變化的規律，建立了- 20oc 50oc之間加速度計零偏和標度因數誤差的溫度模型，應用該模型對加速度計溫度干擾進行補償，補償后，加速度計輸出的擬合均方根誤差一到二個數量級，並且基本上消除了加速度計輸出隨溫度變化的趨勢項，使得加速度計測量精度得到了明顯提高。
  12. The innovations of this thesis are as the follows : 1 ) it is analyzed that the lower - order jacobi - anger expansion model for an incoherently distributed source has better accuracy performance than some other approximate source models such as space frequency model, two - point source model, and low - rank approximate model. using the parametric decoupling property of the ja - based model, a novel angular parameter estimator is proposed, which is very robust in case of large angular spreading

    本文從這三個方面開展了空間分佈源波達方向估計研究，創新點包括： 1 ）分析了低階jacobi - anger級數展開近似模型的誤差性能；利用該近似模型的參數解耦特性，提出了一種新的波達方向估計器，在大角度擴展條件下，該估計器表現非常穩健。
  13. The article gives the results of rectangular moderate - thick plates under various length - width ratios and various thickness - width ratios and the results are compared with corresponding series solution about thin plates. at last the article gives a rough limitation between thin and thick plates according to the absolute values of their relative er -

    本文最後計算了彈性地基上不同長寬比的中厚板在不同的厚寬比情況下的中點撓度值，並與薄板理論的級數精確解答進行比較，根據其相對的誤差絕對值，對彈性地基上薄板和中厚板嘗試進行了大致的界定。
  14. The convergences of the tracking error sequence and the input sequence can be proved by the properties of optimality criterion immediately

    該演算法的收斂速度是指數級的，其輸出誤差序列和控制信號序列的收斂性能夠得到保證。
  15. This paper gives a time - synchronization technique bases on gps time service signal which is used in broad band seismic recorder 。 by world coordination time offered by gps - - utc ( usno ), adjust local clock base on gps signal, gain high nicety clock signal, clock precision reachs 10 - 6 。 this clock is the time source of broad band seismic recorder, bring the whole seismic recorder works in same time base. 1pps time base with high stability can be used as in - phase, spring, time and start - stop of every collection mode, while the scale under second make a precise time mark to receive data of broad band seismic recorder

    針對接收機中gps信號的噪聲進行kalman濾波軟體處理， kalman濾波可以對gps信號與本地晶振時鐘的時差數據在大噪聲中進行平滑，在較短時間內估計出高精度的時差數據。系統消除了gps秒脈沖信號的ms級隨機誤差，把晶振秒脈沖的長期穩定度鎖定到gps信號的穩定度上;在gps信號失效時給出了可行措施，能夠保證在任何情況下產生一個穩定、高精度秒脈沖信號，誤差在1 s內。
  16. The main point of this project is to research the theories and applications of artificial neural network ( ann ) which is suitable for large scale science data mining. especially, our research focus include : dimension reduction techniques based on independent component analysis ( ica ) and wavelet - based denoising or compressing techniques for feature extraction in scientific datasets which have complex features ; classify and clustering techniques of ann combination with data grid, back - propagation neural network, self - growing multilevel self - organizing map for large scale knowledge founding in sdm

    特別深入研究以獨立分量分析（ ica ）為主的降維技術、以小波神經網路為主的壓縮降噪技術解決科學數據特徵復雜不便識別的問題;以同網格結合的神經網路、誤差反向傳播的bp神經網路、自適應多級自組織特徵映像網路為主的分類、聚類技術解決科學數據挖掘中的大規模知識發現問題。
  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，並利用相對擬合誤差計量統計數據的非一致性誤差;接著系統介紹了利用模糊綜合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，指標權重的確定，計算各層次中因素的權重，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合評價模型;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，從而達到綜合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. The software design uses c51 high - level language to write the modularization programme. by dint of matlab, the precision of system improve by software compensation. in order to avoid the blindness of temperature coefficient, meanwhile, an auto - temperature compensation way via single - chip is brought out

    軟體部分使用c51高級語言編寫模塊化程序，並藉助matlab的數據擬合功能，實現對誤差的軟體補償，提高了測量精度;同時提出了一種運用單片機實現測量系統自動溫度補償的在線查表法，避免了傳統的選擇溫度補償系數存在的盲目性。
  19. To begin with, the influence that plane scanning error has on the far field is analyzed and the upper boundary of the error is formulated. and then this paper uses the taylor series expansion to correct the probe positioning error in antenna near - field measurement

    根據平面波譜理論，推導了平面掃描位置誤差對遠場的影響，給出了位置誤差上界的數學表達式，並用泰勒級數展開法對其進行了修正。
  20. After analyzing and studying the characteristics of the sequence generation of grey system theory, this paper proposes the concept of three - dimensional data sequence, extends the grey system theory from one - dimensional data sequence to three - dimensional data sequence and enlarges the application range of the theory in engineering. this paper also proposes a decomposition coefficient selection method and a partial concave - convex characteristic decision method to the preference generation, which can solve the problem that the internal point generated by the original method was inconsistent with the actual system. considering the errors existed in ends generation with step ratio and smooth ratio methods, the author proposes a tendency average generation and improves the quality of the generation greatly

    灰色建模與逆向工程兩者有其十分相似的內在關系，本文通過學科交叉，深入研究兩種不同學科理論，在繼承灰色系統理論這一我國原創性理論思想的基礎上，補充和豐富了新的內涵並將其滲透到逆向工程中的數據測量與數據處理技術的應用之中，使機械工程中甚少應用的這一灰色系統理論得到了進一步的拓展，主要成果如下: 1 .分析研究了灰色系統理論中序列生成的特點，提出了三維數據序列的概念，將灰理論的一維數據序列拓展到三維數據序列，拓寬了灰理論在工程中的應用范圍;提出了有偏生成演算法中生成系數分解選取方法和數據序列點局部凹凸特性決定生成系數的方法，解決了原有方法生成內點與實際系統不一致的現象;針對級比和光滑比用於生成端點有較大誤差的情況，提出了趨勢均值生成演算法，大大提高了端點生成的精度。
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