點位中誤差 的英文怎麼說

中文拼音 [diǎnwèizhōngwùchā]
點位中誤差 英文
mea quareerrorofapoint
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 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...
  • 誤差 : error
  1. In digital relay, the percentage of noise will increase rapidly with the increase of sampling rate when derivation calculus is substituted by sampled difference term. to solve this problem, a new method using fragment function integrated with the least square algorithm is proposed in this paper. the influence of white noise is greatly reduced and the accuracy of the dead angle calculation is nicely improved after adopting the new method

    在數字式保護中，如果用差分代替求導將導致噪聲的百分比誤差隨著采樣頻率的提高而劇增，本文對此進行了分析並提出了用分段樣條函數最小二乘法來計算電流波形的導數值，以便在提高采樣率的同時降低噪聲誤差的影響，並將其應用於基於32位浮點dsp的新型變壓器保護裝置。
  2. Based on the method expressing the positional uncertainty of point entities in surveying and mapping, uncertainty ellipse was employed to characterize the uncertainty region for the error dispersal of 2d target ' s position, and uncertainty ellipsoid for the 3d target. 1 - uncertainty ellipse was derived from positional error covariance

    借鑒測繪學科中衡量點元位置不確定性的方法，分別用橢圓和橢球來表示二維目標和三維目標的位置誤差散布的不確定性區域。
  3. This dissertation emphasizes on the creation of image space, the author present a display system in which screen moves with a sinusoidal velocity profile to create image space. this paper uses linear approximation to make the system display homogeneous graphic and analyzes worst - case positional error due to linear approximation

    本論文重點分析了顯示單元中成像空間的構造，提出屏幕按正弦曲線運動的方式來構造成像空間，用線性近似的方法得到均勻的圖像，並分析了由於線性近似帶來的最大屏幕位置誤差。
  4. Probe into point centering errors of short - side traverse of the theodolite

    短邊經緯儀導線點位對中誤差的探討
  5. 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。
  6. Abstract : incompatible element nh11 and hybrid stress element 18 were employed to analyze rock burst occurring in coal face 9108 of sanhejian coal mine. compared with the results from ansys, the two optimized fems can execute more accurate numerical simulation in the research of rock burst as well as other rock problems and lessen the errors from inaedquately meshing in huge calculations due to the limitation of labor and computer time. in addition, the criterion of averaged generalized stress rate was proposed and used to determine the site and moment of rock burst. the given conclusion is in accordance with the face of coal face 9108 very well

    文摘:利用優化非協調元和雜交元分析了三河尖礦沖擊礦壓，並與ansys程序的計算結果進行了比較.認為優化有限元在沖擊礦壓乃至巖石材料的數值模擬中能給出更為精確的結果，也可減小大型計算中由於人力、機時所限粗分網格產生的誤差.分析中，採用了廣義平均應力率準則來判斷沖擊點位置和沖擊時刻，所得結論與實際情況吻合
  7. Nowadays, the machining center carries through the precision inspection only following the fixed coordinates " axes, which can not completely reflects the real error of the spacial position of the practical machining outside the axes and leads to having no the directive relation between the inspected precision and the practical machining precision. so, this paper introduces that the error factors of influencing workpiece ' s outline on machining and carries out the solid inspection of every spot ' s error inside the workaround on the horizontal machining center

    本文針對當前加工中心僅沿固定的坐標軸線進行精度（含幾何精度和定位精度）檢驗，並不完全反映軸線外實際加工的空間位置真實誤差，導致檢出精度與機床實際加工精度無直接對應關系的現狀，論述了加工時影響工件型面輪廓精度之加工中心的誤差因素，對加工中心實施其工作區內各點誤差的立體檢測。
  8. The algorithm and its implementation of the leading zero anticipation are very vital for the performance of a high - speed floating - point adder in today s state of art microprocessor design. unfortunately, in predicting " shift amount " by a conventional lza design, the result could be off by one position. this paper presents a novel parallel error detection algorithm for a general - case lza

    目前國際上已有很多演算法對前導0預測演算法進行了研究，但是出於設計方法和延遲等方面的限制，大部分前導0預測演算法都為非精確演算法，其預測結果可能與真實加法結果中前導0的個數產生一位的誤差，這個誤差需要在浮點加法的后規格化過程中進行修正，因此反過來又增加了浮點加減演算法的關鍵路徑延遲。
  9. By taking advantages of epipolar line features and depth discontinuities in reference 中國科學院 軟件 研究所 博士 學位 論文 基于 圖 象 的 快速 繪制 技術 的 研究 images ， an efficient inverse wmping algorithm is pfoposed in chapter 3 for gcnerating nagcs of novel views by combining multiple eference images 帆 enhm different vie 呷 oints because continuous segnents determi 。 d by pairs ofedge pixels at co 。 spending epipolar lines are order kept ， only pairs of edge pixels in the reference 渝 明 e e necess 叨 口 cowute to obtain generalized disparity of all points in the desired image as a result ， sighficant acceleraion could be made in the endering pfo 比 鴕 two accelerating techiq 此 s e presented in this algori 山 mb accelerate the hole illing process his algorithm extends the reference images rom projection of single col ： ii ’ ected surface in previously developed nvnverse w 出 下 er to ima 驢 s captured rom complex scene in chapter 4 ， an 《 dent ibr method is prese 庇 仙 y takn ull 訕 antage of 呷 bies c 咖 the method can simulate the 3d details on sllri ： ace of object successfully he 。 叩 proach ， called rered ature mopmp consists of two pans at fst ， an origi 。 ltexture with orthogonal displacements per pixel is deco 啊 osed into a series of new t6 刀 mfcs with each 他 lug a given displacement per pixel ， called ae ， ea atures ， or lt hen hese lt e used to render the novel view by conventional texture mapping d avoid gaps n the endered hlla 驢 ， some phels are to be interpolated nd extended in the 廠 kaccoding to the depth differe eee between two neighbor pixels in the original texture as these ltlt fc … e much storage nd therefore much time is equired to install ltlt into the text ’ ufc buffec an 舊 thod is pfoposed to co 呷 fcss the ltlt ， nd the cottcspondingfclldering method is given experimental esults show that the new method is efficient ， especially n rendering those objects with a smaller depth rnge compared withtheir size ， such as relief surfaces of building

    與己有的三維變換方法相比較，該方法不但成功地填補了由於投影區域擴張而產生的第一類空洞，而且成功地填補了由於空間深度非連續物體相互遮擋而產生的第二類空洞，從而方便地實現了虛擬環境中的漫遊；基於物體表面深度的連續性，本文提出了一個位移預測方法? ?此方法可以從單幅參考圖象獲得逆映射過程中所需要的目標圖象的位移信息，從而大大提高了演算法的效率：與通常的正向映射演算法相比，此演算法克服了多幅參考圖象所帶來的計算量成倍增長等問題，而且誤差較小。 2 ）基於極線幾何的快速逆映射演算法。利用參考圖象的邊界信息與隱含的遮擋關系，以及極線幾何的性質，本文第三章提出了一個基於極線幾何的快速3 『一中國科學院軟體研究所博士學位論文基於圖象的快速繪制技術的研究逆映射演算法，從多幅參考圖象精確合成當前視點目標圖象。
  10. In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology

    為使二維振動傳感器在兩主軸方向的靈敏度大致相同，敏感元件採用高度對稱的四梁結構，其中每個軸向上均採用帶折疊梁的雙側叉指電容結構，採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件，具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算，並利用有限元法進行了模擬分析，根據模擬結果得出了優化參數;在確定敏感結構的基礎上，研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析，利用差動測量技術得到由振動引起的微小電容變化量，經c - v介面電路進行相位調制處理，然後通過解調輸出與加速度成正比的電壓信號。
  11. In this study, two geometric correction methods are introduced. based on the characteristics of modis data, geo - location of the experimental area, and the error distribution patterns of different projections, we conclude that the albers conical equal area projection is feasible for the geometric correction

    並對製作我國modis遙感影像圖時的投影方式選取問題進行了討論，通過分析modis數據的特點和用途、根據應用區域的地理位置以及各種投影方式的誤差分佈模式，確定在幾何校正的過程中使用亞爾勃斯（ albers ）等積圓錐投影。
  12. This dissertation focuses on the application of data fusion in two - phase flow regime identification. following is the main contribution of the dissertation. 1 ) based on quartile and first order differential, a new outlier detection algorithm is presented, experiments show that the method combining with low pass filter can remove gross error and unwanted frequency components

    本文的主要工作與創新點在於： 1 ）將分位數方法與一階差分法相結合，提出了一種基於一階差分的粗差剔除方法，該方法與低通濾波器的結合可以有效去除兩相流壓力波動信號中的粗大誤差以及信號頻帶以外的頻率成分。
  13. A general stack equation of mobile robot based on analyzing the motion of planar motion object and the mathematical models of four different kinds of common wheels is developed, accordingly, the mobility of mobile robot is addressed and the forward and inverse solutions to speed for specific configuration driven by differential speed are derived. utilizing the muir and newman convention, the description of the posture transformation matrices between different coordinate frames and the solution for the speed of point located on these frames are introduced. according to posture estimation, a more accurate method, dead reckoning algorithm, is developed for a specified configuration characterized by differential speed motorization, and simulations of this algorithm and other traditional methods are carried out using matlab while traversing a circular path

    本文對兩輪差速驅動移動機器人的運動學及其本體緩沖設計進行了探討，在對平面運動物體運動分析的基礎上結合四種常用車輪的數學模型，推導出了一個通用的移動機器人堆積方程，在此基礎上分析了移動機器人的移動能力、並針對兩輪差速構型推導了速度正解與逆解；使用muir和newman的運動學建模方法，推導了移動機器人上點及連桿坐標系位姿、速度變換關系矩陣及求解方法；在移動機器人位姿識別方法中結合差速驅動構型對航位推演算法進行了分析：推導了一種理論精度較高的航位推算演算法，並使用matlab對其與傳統的推算演算法在跟蹤圓弧軌跡情況下進行了模擬；最後針對本文所研究的機器人給出了一種比較系統、可靠的緩沖結構設計思路，較好地解決了移動機器人作業過程中外界因素及本身設計中引入的各種不確定誤差問題；本論文研究成果已在本實驗室所開發的樣機上得到實現，經過應用與考核證明其中的分析與設計是切實可行的。
  14. Point to above problems, under the financial support of the national natural science foundation ( exploration of high tech and new concept and new conceive ), the excellent young teachers program of ministry of education and national excellent doctoral dissertation special foundation, the static and dynamic real - time computation of elasticity - plastic mechanics, solving method of fuzzy finite element and other problems were studied in this paper. and some achievement was gained as following : ( 1 ) based on the positive definiteness of system stiffness matrix of finite element that was modified and the form of potential energy function of elastic body, the linear system of saturation mode ( lssm ) was introduced into the neural computation of finite element, by which the no - error solving of finite element neural net computation was realized in theory

    針對上述問題，在國家自然科學基金（高技術新概念新構思探索） 、教育部優秀青年教師資助計劃、高等學校全國100篇優秀博士學位論文作者專項基金等的資助下，本文對彈塑性力學問題的動靜態的實時計算、模糊有限元的求解方法等問題進行了系統和深入的研究，取得了以下成果： （ 1 ）根據有限元總剛矩陣經修正後具有正定性的特點以及彈性體勢能函數的具體形式，將飽和模式的線性系統（簡稱為lssm系統）引入到有限元的神經網路計算中，在理論上實現了有限元神經網路計算的無誤差求解。
  15. Locate the point in production that created the error

    3 ）定位生產過程中生成誤差的點；
  16. Then one of the methods of rotor position detection - bemf zero crossing point detection is explained in detail. in succession, the chapter dissertates the method of measuring phase voltage and supply voltage, and analyses the error of rotor position using this method

    對轉子位置檢測方法中的反電勢過零點法作了比較詳細的介紹，討論了反電勢法中相電壓和端電壓的檢測方法，並分析了利用該方法時而產生的轉子位置檢測誤差。
  17. In this paper we made a systemic analysis and study of the accurate orientation technology in the process of helicopter landing - photogrammetry, made the model of using double ccd to measure the exact position of helicopter based four latent points photogrammetry, educed formula about beaconing position, analyzed the computing error, and particularly computed the information of beaconing position of the helicopter ' s landing by experiment emulation. in the result, the error between a computed value and a measurement value was less than 5 centimeters

    本文對直升機著艦精確定位技術中的攝影測量演算法進行了系統分析和深入研究，在四特徵點測量演算法基礎上建立了雙ccd攝影測量直升機精確位置坐標的數學模型，進一步從各個影響演算法測距精度的方面討論了計算誤差，推導出測量信標坐標位置的計算公式，並對利用雙攝影測量演算法計算直升機著艦掛鉤位置的正確性及準確性進行了模擬實驗，得到的演算法計算值和實驗測量值之間的誤差在5cm以內。
  18. The gained snr is higher than the previous algorithm ’ s. a linear least square predictor is presented for the trajectory association algorithm. it can effectively reduce the prediction error and improve the trajectory detection probability

    針對軌跡關聯匹配演算法中的軌跡預測誤差大的問題，採用多點最小二乘（ ls ）線性預測器加以改進，減小了軌跡的預測位置誤差，提高了目標軌跡的檢測概率。
  19. All of work above can work as the basic knowledge for further research for operating characteristics and simulation, the detecting principle and implementing method with sensor as the means for requirement of information about rotor position are described. next, a novel inductance method and rotor position angle estimation using fuzzy logic are studied. in this dissertation, some knowledge about error signals are detailed, at the same time, some rese arch for improving precision is also provided

    通過分析有位置傳感器的檢測原理和實現方法，重點研究了兩種無位置傳感器轉子位置檢測方法：一是採用改進電感法（閥值電感法）的轉子位置檢測方法，並設計了實現方法；二是基於模糊推理規則的轉子位置估算方法，針對此方法中誤差信號進行分析，研究提高角度估算精度的策略和方法。
  20. Furthermore, because the three grades decelerate control method, which is used widely, in stack crane control in china has some shortcoming, two rbf neuron network applied in position error study and dot position control is put forward. because neuron network is of self - study, emendation and modification can be achieved in control and can remedy the shortcoming caused by shortage of sample

    另外，本文還針對目前國內在對堆垛機控制方面普遍採用的三段式減速控制規律的弊病，提出用兩個rbf神經網路分別作為位置誤差學習器和點位位置控制器，由於神經網路的自學習功能，可以使得在控制當中不斷校正和修改在訓練時由於樣本不足造成的缺憾。
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