補償計時誤差 的英文怎麼說

中文拼音 [chángshíchā]
補償計時誤差 英文
compensating timing error
  • : Ⅰ動詞1 (修理; 修補) repair; mend; patch 2 (補充; 補足;填補) fill up; add supplement; supply; ...
  • : 動詞1. (歸還; 抵補) repay; compensate for 2. (滿足) meet; fulfil
  • : 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...
  • : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
  • : 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Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
  • 補償 : compensate; make up; make up for; make it up to sb. ; make sth. good; compensation; offset
  • 計時 : reckon by time; timing; chronography
  • 誤差 : error
  1. The main computer is programmed under windows, while the assistant computer is programmed under dos. the last, based on the idea of module - structure, the software of the testing system are designed, thus this software system is compatible and transplantable to design again. the experiment of measuring principle is taken : take the xy flat of lathe as the parallel - pole device and adjust the angle of sensor, the rotating - probe can test the felloe mould in scanning way

    藉助虛擬儀器的思想,對測控系統進行了設:採用光柵尺、光電編碼器測量可動部件的運動量,解析度高、小;採用細分驅動的步進電機裝置,控制性能好;系統實施環境溫度的檢測、,提高了檢測精度;基於兩級微機組建測控系統:主機為人機界面,採用windows編程,從機用dos編程,實性好;軟體設採用兼容性和移植性好的模塊式結構,便於二次開發。
  2. From the result we get the following conclusion : for narrow - band signal, the effect of the method based on fft is best. for wide - band signal, when snr is up to certain degree ( higher than - 7db or so ), the curves of square error of modified methods are more obvious and closer to crb. for an echo composed of more than one frequency or direction, space - frequency distribution could show more direct information of frequency and direction, which is more advantaged to make precise judge and estimation for doa of echo

    從估結果發現,對于窄帶回波信號,基於fft的方法估性能大大優于其他方法;對于寬帶回波信號,在信噪比達到一定程度(高於約- 7db )后的幾種估法的性能改善均比較明顯,曲線越來越接近crb曲線;對于回波中存在多頻率多方位的情況,空間?頻率分布圖能提供較為直觀的頻率及方位信息,因此應用空間?頻率估法來進行方位估,更有利於進一步對回波的具體方位進行準確判斷和估
  3. 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,精密數控指令值究竟該是多少,如何能夠通過算,獲得這樣的數控指令值,給出經修正的數控指令算方法。
  4. Abstract : the attitude error performance of electrostatic gyro should be understood and the relevant error equations must be set up in order to ensure the navigation precision of esgm. the relation between the navigation errors and the attitude errors of gyro was derived by use of spherical triangle. the simulation results show that the temporal performances of the longitudinal and distance errors which come from the initial alignment errors are periodically variational. they also show that the longitudinal and distance errors resulted from gyro drifts are not convergent in time. thus, the effects of initial alignment errors and gyro drifts can not be neglected and must be estimated and compensated

    文摘:為了保證靜電監控器的導航定位精度,需要了解靜電陀螺的姿態特性,建立相應的方程.本文採用球面三角形原理推導了導航定位與陀螺姿態的關系式.模擬結果表明,由初始定向引起的經度和距離間特性是周期變化的;由陀螺漂移引起的經度和距離是隨間發散的.因此,初始定向和陀螺漂移的影響不能忽略,必須對其進行估
  5. The synchronous rectifying and low power sampling technology is used to reduce the power consumption, flexible external loop compensation, error amplifier output clamp are adopted for better system large signal response. the piecewise slope compensation technology is employed to minimize the consequence of over compensation. the sensor resistor is externally connected, which realize output voltage programmable. the overheat protection and under voltage protection modules are integrated in the die to allow the reliable operation of the system

    ,電路設採用同步整流技術、低功耗電流采樣技術降低功耗,提高轉換效率;採用靈活的外部環路技術、放大器輸出嵌位技術以實現良好大信號特性;採用分段斜坡技術,消除不穩定因素,並最大程度地減小過帶來的問題;採用外接輸出采樣電阻的方式,實現輸出電壓的可編程。
  6. Due to temperature performance of fbg, a reference fbg is adopted to compensate temperature and the compensation principle is expounded. moreover, this scheme not only realizes temperature compensation but also reduces repeatability error of ffptf and errors from power fluctuation of light source, noise of pd and noise of electro - circuit. in the end, temperature and strain performance of fbg is tested and

    基於光纖光柵的溫度響應特性,提出用一個參考光柵來進行光纖光柵傳感陣列溫度的設方案,並論述了其原理,證明了該方法的可行性;同可以看出,該方法不僅可以實現溫度,也可以減小光纖f - p可調諧濾波器的重復性以及光源功率波動、探測器噪聲和電路噪聲等引起的
  7. Therefore, aiming at the existent static and dynamic error of fcs sensor, the sensor characteristic compensation subunit is designed in the environment of labview using vi technique. the sensor signal disposal platform is also developed to realize the time domain measurement, frequency domain analysis, long - distance transfer and network release, etc. firstly, the static characteristic and nonlinear error of the sensor are analyzed

    為此,本文針對飛控系統傳感器存在的靜態和動態,利用虛擬儀器技術在labview環境下設了傳感器性能環節,開發了傳感器信號處理平臺,對信號進行域測量、頻譜分析、小波消噪、遠程傳輸和網路發布等。
  8. Based on x - filtered lms algorithm and - filtered lms algorithm adaptive inverse control, we use a new variable step size lms algorithm. adding little computation, variable step size lms algorithm can result in fast convergence speed and low residual error simultaneously. the adaptive feedback control can counteract the beginning error of the system

    在原來的x -濾波lms演算法自適應逆控制和-濾波lms演算法自適應逆控制方法的基礎上,引入了新的變步長lms演算法,在算量增加不多的前提下,能同獲得較快的收斂速度和較小的穩態;引入自適應的反饋控制克服了被控系統的直流零頻漂移,使控制系統在初開始工作階段快速收斂;還引入自適應擾動消除器,它能最大限度的消除擾動。
  9. For the measurement of analog signals such as voltage and current of astg, a filter card for pre - disposing is designed, in order to improve real - time performance, algorithms for ac analog sampling is simplified, and a compensation algorithms for phase error due to sequence - sampling is brought forward. for the measurement of impulse - width signals such as rotor - speed and rotor - position - angle, an intelligent interface card based on isa bus is designed. all programs for measure and control based on c + + are compiled and debugged and the flow for system debugging is summarized

    為了提高實性,對交流采樣演算法進行了簡化,並提出了由於非同步順序采樣所造成的相位演算法;針對轉速、轉子位置角等脈沖寬度信號的測量,深入分析了測量原理,設了基於isa總線的智能介面卡;編制和調試了基於c + +的全部測量控製程序;完成了整個系統的調試,並總結了調試方法。
  10. Abstract : this paper developed time domain integral constraints on error response for siso feedback control systems caused by nominal plant ' s near cancellation of stable pole - zero near the j - axis. these integral constraints should be satisfied by any feedback control systems. these integral constraints give new insight into the inherent trade - offs. it will result in the settling time longer or the infinite norm of the error response larger when there are near cancellations of stable pole - zero near the j - axis. hence, when feedback control systems are designed, it is necessary to avoid the compensator ' s poles and zeros nearly cancelling the nominal ' s zeros and poles ( even if these poles and zeros are stable )

    文摘:導出了單輸入單輸出反饋控制系統響應基於名義系統穩定的零、極點近似相消的間域積分約束,此積分約束是任何反饋控制系統均應滿足的.這一約束給出了單輸入單輸出反饋系統固有折中的新的觀點.名義系統穩定的零、極點近似相消的存在導致反饋控制系統的調節間延長或者響應的無窮范數變大.因此,在反饋控制系統設中,盡量避免器的零、極點與名義系統的極、零點近似相消(即使這些零、極點是穩定的)
  11. At the same time, the method of disposal phase shift of ct by compensation is introduced. then the analysis and statistic of electrical power quality, the control scheme and compensating amount of capacitor for reactive power compensation are analyzed respectively. and in the paper, the control with a / y and the switch with ac contactor and solid state switch is valid measure not only for improving operate level economically and amending electrical power quality but also for avoiding of replacing switch frequently and decrease economic loss

    然後對現有的演算法進行了詳細的分析、比較,篩選出既能滿足硬體要求又可降低投資、保證精度、簡化軟體的方案,確定了準同步采樣的方案,並通過對準同步采樣的分析,提出了一種從45開始采樣,從而提高精度的采樣數據處理辦法,同,對于電流互感器相位漂移提出了一種辦法,接著對裝置中電能質量分析與統以及無功中電容器的量、投切原則也作了相應分析,其中對于無功採用y混合接線,並利用交流接觸器和固態開關共同投切電容,不但提高了經濟運行水平、改善了電能質量,而且有效的避免了頻繁更換開關,減少了經濟損失;最後,設了裝置的硬體電路並繪制了相應的軟體流程圖。
  12. This dissertation presented two new methods of robust adaptive track control for a class of mimo strong nonlinear system with external disturbance. one method makes use of taylor approximation principle to linearize the mimo strong nonlinear system at the ideal equilibrium point, meanwhile external disturbance is considered, and then designs two on - line neural network controller respectively, which can dynamically compensate the high order items of taylor series and the control signals at ideal equilibrium point under the drive of state error between linear and nonlinear system. a linear feedback controller obtained by pole assignment and two on - line neural network act on the practical mimo high nonlinear system together, guaranteeing the whole system robust stable and tracking the specified signal ; the other method designs three on - line neural networks for this class of system

    本文對於一類含有外部擾動的多輸入多輸出( mimo )強非線性系統,提出了兩種新的魯棒自適應跟蹤控制方法,第一種利用了taylor近似的原理,在考慮了外部擾動的情況下,將mimo強非線性系統在理想平衡點處線性化,分別設了兩個在線神經網路控制器,在線性和非線性系統之間的狀態驅動下動態系統的taylor近似高階項及理想平衡點處的控制信號,滿足極點配置方法的線性反饋控制器和兩個在線神經網路聯合作用於實際的被控mimo強非線性系統,在保證整個系統魯棒穩定性的情況下,能夠跟蹤給定的指令信號;另一種方法是針對這類系統設了3個在線神經網路,分別實抵消這類非線性系統中的非線性部分、與控制量耦合的非線性項以及外部擾動,使得受控系統的輸出可以完全跟蹤給定輸入參考信號。
  13. The original emm is adjusted. the new emm not only retains the simple expression, but also has a satisfied precision for calculating the restraining stress of the scc walls. the shrinkage compensation coefficient y is proposed for quantitatively estimating the effectiveness of die expansion at early age compensating the shrinkage at later stage

    基於以上認識,修正了原有的等效模量法,將總約束應力表示為早期膨脹和後期收縮兩個單調變形過程引起的分項應力之和,在保留其簡單形式的同,使之在容許下,適用於收縮混凝土墻的約束應力算。
  14. Compensating timing error

    補償計時誤差
  15. 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:提出了一種以為目的的新的相移演算法設方法?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分析是同進行的,改變了以往先設演算法再進行分析和評價的過程,由待定系數法導出的相移演算法對演算法設中所考慮的源具有良好的性能
  16. One important problem is the design of advanced motion servo controllers in the presence of disturbance, nonlinearities and unmodeled dynamics, the other is the monitoring of high - speed machining process and the machining state of cnc systems. this dissertation focuses on the high performance motion control algorithms and their implementation on the cnc system. according to the idea of synthesizing the error avoidance and error compensation to research, the dissertation is consist of two parts which are servo controller design theory and online error compensation theory

    針對高性能數控系統研究現狀中面臨的兩大挑戰問題: ( 1 )在存在擾動、非線性、模型和參數不確定性的情況下設高性能的伺服控制器; ( 2 )高速加工過程和數控加工狀態的監控,本文系統地研究了高性能運動控制在數控系統中的應用,按照避免和兩條主線進行綜合研究,從而可將本文分為兩大模塊;伺服控制器設理論和實理論。
  17. In order to research it, a complicated temperature physical simulation system and on - line measure and control system is presented and developed in this paper ; a controlled object model with the character of time - varying is set up by making use of matlab software ; based on the time - varying controlled object, an dynamic matrix control algorithm with error correction is presented. the simulation demonstrate that the improved dmc is better than the ordinary dmc in control effect

    以工業生產過程中廣泛存在的一類變、非線性、大延、廣義溫度被控對象為背景,設了一套復雜溫度物理模擬系統及在線測控裝置;以變為主要特徵,利用matlab工具軟體,建立了一個變系統的被控對象模型;以該模型為被控對象,提出了一種的動態矩陣控制( dmc )演算法。經模擬表明,該演算法優於一般的動態矩陣控制演算法。
  18. The parallel computing ability of wave number domain algorithm is also being studied basically. the influence of the carrier movement errors on the sas image is analysed in chapter three firstly. based on studying those algorithms which have been successfully applied in sar, the limitations of these auto - focusing algorithms are discussed. hereafter an auto focusing algorithm based on time delay and phase error evaluation is raised, which can compensate big movement error effectively and so can be applied in sas

    第三章首先分析了孔徑上運動對合成孔徑聲吶圖像的影響,在研究在sar領域里成功應用的演算法的基礎上,對其運動的局限性做了分析,提出一種基於延相位估的自聚焦演算法,它能夠有效地運動帶來的影響,並且適用於sas運動較大的情況。
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