統計精度 的英文怎麼說

中文拼音 [tǒngjìjīngdù]
統計精度 英文
statistical accuracy
  • 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 精 : Ⅰ形容詞1 （經過提煉或挑選的） refined; picked; choice 2 （完美;最好） perfect; excellent 3 （細）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 統計 : 1 （對有關數據的搜集、整理、計算和分析） statistics; census; numerical statement; vital statistic...
  • 精度 : precision; accuracy; degree of accuracy; precision accuracy; trueness
  1. Voltage reference is a vital basic module which is widely adopted in analog circuits ( mixed signal circuits ). its temperature stability and antinoise capability influence the precision and performance of the whole system

    電壓基準源是模擬電路（混合信號電路）設計中廣泛採用的一個關鍵的基本模塊，它的溫度穩定性以及抗噪性能影響著整個電路系統的精度和性能。
  2. Through matlab simulations, this improved algorithm can not only achieve the same resolution ability as the conventional music algorithm in ideal conditions, but also acquire the resolution ability and estimation precision that music algorithm can ’ t obtain in the nonideal condition of so - called signal eigenvalue leakage

    通過matlab模擬，該改進方法不僅可以在理想情況下取得和傳統music演算法一樣的分辨力，而且在所謂的信號特徵值泄露的非理想情況下可以取得傳統music演算法不能達到的分辨力和估計精度，同時一定程度上減小了運算量。
  3. In order to improve the efficiency of classification based on feature matching, the method of azimuth estimation from sar image is studied. a method of target ' s azimuth estimation from sar image using peak featur e based on linear regression is proposed, besides goodish estimation accuracy and high computation efficiency, it can also provide the confidence interval of the estimation, which can meet the need of model - based sar atr system that uses feature very well

    為了提高基於特徵匹配的saratr系統的分類效率，論文進一步研究了sar圖像目標方位角估計方法，提出了一種利用峰值特徵基於線性回歸的sar目標方位角估計方法，該方法除了具有計算速度快、估計精度較高的特點之外，還能在估計方位角的同時，給出該估計的置信區間，從而能更好地滿足利用特徵基於模型saratr系統的需要。
  4. Error analysis and improvement for oil tank measure system

    儲油罐計量系統中精度的分析及提高
  5. By complementing the proposed scheme with methods to estimate the fractional code delay, the acquisition unit an provide high quality delay estimates such that it can instead of the delay locked loop in the traditional ds receiver. after dispreading successfully, this dissertation introduces a method to estimate the doppler - shift directly from some samples based maximum likelihood estimation, and then revise it forwardly

    在成功解擴之後，本文利用最大似然估計從l個樣點中直接估計出殘余多普勒頻偏，並進行前向頻偏校正，來代替傳統擴頻接收機中的科斯塔斯環，經模擬證明該方法的估計精度完全滿足解調的要求。
  6. 3. based on the information fusion estimation theory, a significant conclusion is drawn that the allocation of information cannot change global estimating accuracy, only local estimating accuracy. therefore, information magnitude sharing coefficient is unnecessary to be adaptivcly determined, which rectifies a false standpoint in the literatures [ 108. 129, 131, 140. 141 ]

    基於信息融合估計理論，研究指出聯合濾波中信息分享系數取值的不同只能夠影響對應子系統狀態的估計精度，並不能影響系統狀態的估計精度，信息分享系數往往沒有必要進行自適應確定，糾正了文獻[ 108 ， 129 ， 131 ， 140 ， 141 ]中的錯誤觀點。
  7. Then the periodic properties of geocenter motion in the x, y, z components are summarized. considering the statistical precision of the gps observations, the geometrical distribution of gps stations and their physical stablility, a new method to determine the parameters of geocenter motion is studied and analyzed. in order to have a better understanding of its effect on the height datum origin, the rule of geocenter motion in the horizontal and vertical components are also analyzed and some useful conclusions are drawn

    提出了將譜分析與抗差估計相結合的抗差譜分析方法，並用該方法分析了地心運動時間序列的主要周期特性；為合理地確定地心運動參數，詳細研究與分析了一種新的定權方法對求解地心運動參數的作用，該方法充分利用了gps觀測量的統計精度、點位的幾何分佈以及物理穩定性；為了明確地心運動導致的高程基準的變化，分析了地心運動對地面點的水平分量和垂直分量的影響規律。
  8. Time delay estimation ( tde ) by using three - element linear array is an important problem in torpedo trajectory tracking system which ttacks target according to strictly geometrical position. it is the basis of measurement of target distance, bearings etc. the error of tde influences directly the accuracy of trajectory tracking. the more efforts have been made in order to acquire high accuracy estimation

    三元直線陣的時延估計是魚雷彈道測量系統中的一個重要課題，它依照嚴格的幾何關系進行目標定位，是測量目標距離、方位等參數的主要依據，時延估計的精度直接影響彈道跟蹤系統的精度，為提高時延估計精度人們進行了大量的研究和探索。
  9. A niched - penalty approach is used to transform this optimal kinematical design problem to an unconstrained one. a kinematic accuracy comparison of the genetic designed fine - tuning stewart platform with the quasi - newtonian designed one is made. the comparison results have shown that the kinematic accuracy of the genetic designed fine - tuning stewart platform has a much higher accuracy and a compact structure than that of the quasi - newtonian designed one, which guarantees the accomplishment of high precision trajectory tracking and reduces the disturbance of wind to the feed - supporting system

    以並聯機器人jacobian矩陣的條件數為優化設計的目標函數，提出了基於遺傳演算法的並聯機器人最優運動學性能結構參數優化設計方法，採用實值遺傳演算法，對精調stewart平臺進行了優化設計，得到了最優運動學的精調stewart平臺結構參數，為實現新一代大射電望遠鏡饋源指向跟蹤系統高精度軌跡跟蹤控制奠定了堅實的基礎。
  10. To make full use of the karst formation in guizhou province of china, a large spherical radio telescope array of the arecibo telescope was proposed in china in 1995. therefore, a completely new design project that integrating mechatronics and optics technologies with several large span cables is proposed to drive the feed - supporting system to realize the high precision positioning. for the high requirement of trajectory tracking of the feed - supporting system with large span cables, the feasibility of stewart platform served as a fine - tuning platform and the accomplishment of the high precision tracking are considered in details in this paper

    本文依託新一代大射電望遠機電光一體化創新設計方案，針對饋源指向跟蹤系統高精度軌跡跟蹤要求，以精調stewart平臺為研究對象，進行了6自曲度並聯機器人的運動學優化設計、動力學分析與奇異性分析，設計了強魯棒性自抗擾控制器實現高精度軌跡跟蹤控制；提出了新一代大射電望遠鏡饋源指向跟蹤系統軌跡跟蹤獨立控制策略、軌跡規劃策略和控制模型； 50米縮比模型實驗驗證了軌跡跟蹤控制策略與方法的工程有效姓和可行性。
  11. 4. relationship between simulation running times and construction time limit estimate precision is discussed, which solves the problem that how many running times are required in order to reach a certain construction time limit estimate precision

    4 .探討了施工系統模擬運行次數與施工工期估計精度之間的關系，解決了要達到某一施工工期估計精度所需模擬運行次數的問題。
  12. Then multipath doa ' s and amplitudes can be estimated by using multipath delays. besides, wmsa and delay tracing techniques are used to improve the precision of parameter estimation and the performance of the whole system is improved in some degree accordingly

    此外，我們還使用了wmsa （ weightedmulti - slotaveraging ） 、時延跟蹤等技術來提高多徑參數的估計精度，從而使整個系統的性能得到一定程度的改善。
  13. In the paper we expound the total structure design of the diameter measurement, the working rinciple and overall structure ofthe diameter measurement are introduced, the choose of optics principle, the special optical system which consist f lens, the design of fine mechanics system, and the choose of light to current inversion as well as computer control and data processing system

    本論文完成了測徑儀的總體方案設計，並對系統的工作原理和總體結構進行了論述。由f透鏡構成的特殊光學系統的確定，精密機械繫統結構的設計，光電變換及微機控制與數據處理系統的確定，最後對激光在線掃描檢測系統的精度進行了綜合分析。
  14. Target state estimater ( tse ) is an important and indispensable part of integrated flight and fire control system ( iffcs ). this article takes the ground mobile object as the study model. it established the system state equation and observation equation from the perspective of promoting system accuracy, simplifying the calculation and facilitating the engineering realization, the tse was set up by using the kalman filtering calculation method in the wake of linearizing the observation equation to make it adapt the precondition

    目標狀態估計器是綜合飛行/火力控制系統中的一個重要組成環節，本文以地面機動目標為模型，從提高目標估計精度、簡化計算以及便於工程實現為出發點，建立目標的狀態方程及觀測方程，並對其進行線性化，利用自適應卡爾曼濾波演算法構造目標狀態估計器。
  15. In the paper, we expound the total structure design of the measuring instrument, the choose of optics principium, the special optical system which consist of f lens, the design of servo control systemic, and the software and hardware design of light - to - current inversion and control of the servo, and the design of sqc statistical quality control and supervisory system. at last, the accurate of laser beam on - line measuring instrument has been analyzed

    本論文完成了檢測儀的總體方案設計，儀器工作原理的選擇，由f透鏡構成的特殊光學系統的確定，伺服機構和伺服控制系統的設計，光電變換及通訊系統的軟、硬體設計， sqc統計質量控制與管理系統的設計，最後對激光在線掃描檢測系統的精度進行了綜合分析。
  16. To settle this problem, one way is to design and make high precision inertial instruments, i. e. gyros and accelerometers. but the inertial instruments " performs are limited with material and technical level. another way is to design and use optimal algorithms

    要提高捷聯系統的精度，一方面是設計和製造出高精度的慣性器件，但由於受材料和工藝的限制而較難以實現；另一方面就是設計和採用高精度的捷聯演算法，因而研究一種適用於捷聯系統的高精度演算法就成為急需解決的課題。
  17. Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail

    針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。
  18. Also, the presented nn speed estimation schemes are discussed and the simulation results show that compared to the traditional schemes, the nn schemes have good speed estimation precision. moreover, they are robust to the variation of motor parameters and not sensitive to the effect of iron loss

    同時，對所採用的速度估計方案進行了模擬分析，證明了神經網路速度估計模型相對于傳統的速度估計模型而言，估計精度高，並且對參數的變化和鐵耗的影響具有很強的魯棒性。
  19. Firstly, while the nominal model is used, the filtering effect is very good. secondly, when the system model is n ' t definite, the filtered heading angle and rudder angle are steady in the error range. finally, when the complicated nonlinear wave model replaces the linear wave model, the filtering effect is also steady, and the estimate precision is high

    首先，模擬是在名義模型的情況下進行的，此時h _濾波器的濾波效果很好；其次，我們在系統模型具有攝動的情況下進行模擬，此時經h _濾波器濾波后的航向輸出和舵令輸出基本能夠達到穩定；最後，我們採用較復雜的非線性海浪模型代替線性海浪模型進行模擬， h _濾波器的濾波效果也是比較穩定的，並且估計精度較高。
  20. This paper solves the bottle neck problem of file output in ewsd exchange. it provides a solution to fulfil hot billing, improve the accuracy of service in statistics and backup the system software

    通過本文的成果，解決了ewsd交換機文件輸出的瓶頸問題，為實現計費文件實時傳送、提高話務統計精度、備份系統軟體提供了解決方案。
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