機誤變量 的英文怎麼說
中文拼音 [jīwùbiànliáng]
機誤變量
英文
error variance-
At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel
首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。The farina press brakes which are equipped with tms, are able to measure without any delay of the bending process, the real thickness of the sheet. this system is totally automatic and updates all of the bending parameters accoring to the new thickness aquired
裝有tms系統的法瑞納的折彎機能夠準確無誤地測量初薄板彎曲加工厚度，全自動系統可根據要求的厚度自動改變參數。Because of the elements which run under nonideal linearity and unentire symmetry in the power system, the loads which are different and change randomly, the methods which adjust and control the system faultily and operate improperly, the disturbance and the malfunction which happen somewhere, the current and voltage in the supply system are distorted seriously and thus large amount of harmonics are produced
但是，由於電力系統元件運行的非理想線性或非完全對稱、負載的性質各異且隨機變化、調控手段的不完善以及錯誤操作、外來干擾和各種故障的存在，供電網中的電流（電壓）發生畸變，產生大量諧波。Based on analyzing the recent research status and future developments of error compensation techniques for cmm in the world, non - rigid errors of cmm are analyzed by means of the stress distortion analysis for components of cmm bridge - type cmm, and a new idea for die error compensation of high precision cmm is provided
本論文在分析目前國內外三坐標測量機測量誤差補償技術研究的現狀和發展趨勢的基礎上，通過對坐標測量機構件的受力變形建模分析，詳細研究了測量機非剛性效應運動誤差，為高精度坐標測量機誤差補償技術奠定理論基礎。Firstly, the mathematical method, wavelet transform of random error processing and kalman filtering algorithm of system error estimation, is designated ; the process of development of wavelet transform and its present research is recommended ; and, the definition and development situation of real - time data processing and post - flight data processing of trajectory measurement data is summarized briefly
首先指出了應用的數學方法，即處理隨機誤差的小波變換方法和估計系統誤差的kalman濾波演算法;介紹了小波變換方法的發展過程和國內外的研究現狀;綜述了彈道測量數據的實時數據處理和事後數據處理的概念和發展狀況。This paper deals with the static and dynamic output kinematic accuracy of a group of elastic slider - crank mechanisms with the same design parameters by taking the bar length, joint - gaps, mass density, interception and physical parameters as random variables
摘要將彈性曲柄滑塊機構的桿長、截面尺寸、鉸鏈間隙、質量密度、彈性模量等幾何、物理參數均視為隨機變量，對機構輸出運動進行了靜態和動態誤差分析。Analyze item by item the position of unintact cycle, the running clearance of unintact cycle, locking - deform, datum dimension regulating, repeatly install, power voltage wave and marking running etc. at the same time, we give the calculating formula to calculating the running marking random error, and use it to calculate the system error of big diameter measure instrument - - datum dimension frame error, gyro - wheel diameter error, error caused by circumstance temperature, error caused by backing distance, angle error, delay error of data collecting circuit, lathe main shaft running error, workpiece install partial error
對不完整圓的位置、不完整圓的轉動間隙、鎖緊變形、基準尺調整、重復安裝、電源電壓波動、標記轉動等隨機誤差進行了逐項分析，並給出轉動標記隨機誤差的計算公式。對大直徑測量儀的系統誤差?基準尺尺架誤差、滾輪直徑誤差、環境溫度引起的誤差、後退距離引起的誤差、角度誤差、數據採集電路延時誤差、車床主軸回轉誤差、工件安裝偏心誤差分別進行了計算，最後對誤差進行合成。Abstract : in this paper, the formula in the evaluation of standard uncertainty for the parameter in smooth change is derived from characteristics of random error
文摘:根據隨機誤差的特性，推導了測量平穩變化參數時評定標準不確定度的計算公式。By analyzing the inter - satellite measurement net of walker constellation at some time in geometry and numeric, the correction of system error and random error caused by the change of orbit elements using different type of estimation of inter - satellite measurement net was provided quantitatively
並通過對walker星座某一時刻的星間觀測網進行幾何分析和數值分析，定量給出了利用不同類型的星間觀測網對軌道根數變化引起的系統誤差和隨機誤差的修正情況。When there is random error in input data, if position - keeping plan is applied, thrusters will change working status in high frequency that will lead to sever thrust wear and energy waste
當輸入存在隨機誤差的情況下，採用常規的定點定位控制方法會導致推進器頻繁改變狀態，造成不必要的機械磨損，浪費很大的能量。Focusing on a tuning fork vibratory gyroscope fabricated through silicon bulk micromachining, the matrix perturbation technology in the random finite element method was introduced to analyze the statistical characteristics of the natural frequencies and output capacitance of tuning fork vibratory gyroscope
摘要以一種通過體微機械加工技術制備的音叉振動式微機械陀螺為對象，基於隨機攝動技術定量計算了微陀螺固有頻率變異和檢測輸出電容變異的統計特徵，以概率思想表達了微陀螺批量加工過程所帶來的材料尺寸隨機誤差對其性能的影響。Power transformer test is simulanted in test - room, try to prove that online measure of transformer test is feasible. the test results are satisfaction. in the end, there is software design : the instrumented - test - interface is developed ; location computer entering to sample state is the same time, and after the same " log time ", it stops the data sample note. every test signal data keeping in the data note memorizer is at the same time, so it realizes data synchronization collection. some blocking design in the process of software design can apply to the other software
文章的最後，針對變壓器試驗微機測試系統對電流、電壓、功率等變量數據採集的特殊要求，分析了同步誤差的產生原因，給出了同步軟體采樣的無差條件；建立了電壓電流有效值和平均功率測量誤差的數學模型，提供了減小測量誤差的措施；應用「同步軟體采樣技術」 ，不需要增加采樣周期數，不需要硬體同步環節，較好地解決了同步誤差對測量精度的影響。This article is concerned with the clinical trials in which the compliance is measured with random errors
本文考慮一類臨床試驗中的解釋變量即依從性（ compliance ）有隨機量測誤差的情形。The first step is the spatial coordinate conversion, which converts the measurement data from the measurement coordinate system to the theoretical coordinate system. the next step is to work out the systematic distortion errors of the antenna surface. the last step is to found the antenna surface model based upon neural network, then we can get random errors of the measurement data and take the mse ( mean square errors ) as the standard errors of the random errors by statistical method
本論文的數據處理過程主要包括：一，實現測量數據的坐標轉換，將測量數據從測量坐標系轉換到設計坐標系；二，求出天線面的變形系統誤差；三，建立基於神經網路的天線面模型，求出各點的隨機誤差值，用統計的方法取其均方根作為標準偏差，並最終求得天線面的型面誤差值。On the basis of the principle of direct torque control, a control strategy of the grade of errors for induction motor has been proposed to improve the performance of powertrain system of hybrid vehicle in this thesis. the stator flux error, electric magnetic torque error and flux position angle are considered as control variables, and the switching states are determined by the control rules of the direct torque control
本文在直接轉矩控制系統的基礎上提出了一種基於誤差等級的直接轉矩控制dtc策略，它以電機定子磁鏈誤差、電機電磁轉矩誤差及磁鏈位置角作為控制變量，然後根據直接轉矩控制原理制定控制規則來選擇開關狀態，進而提高系統瞬態時的轉矩響應。Its brings forward data processing means, discusses estimate means and spread rule of random error and system error, presents error equation, validates adequately by theory analysis combining practice, obtains a great deal experiment data, finds change rule of vehicle plane error
提出了數據處理的方法，討論了隨機誤差和系統誤差的估計方法和傳播規律，給出各單項誤差的方程，把理論分析與實踐相互結合，進行充分驗證，獲得大量實驗數據，得到車載平臺誤差的變化規律，通過模擬驗證了數學模型的正確性。Therefore, under open economy, study to the effects of balance of payments, an economic parameter representing trade changes between domestic and foreign countries, on domestic macroeconomic process has theoretical and practical significance for china that joins international economy. although balance of payments problems are almost included in international economics, this thesis mostly pays attention to open economics problems based on the monetary approach
在上述分析的基礎上，利用granger影響關系檢驗、協整檢驗和arma模型、誤差修正模型、向量自回歸模型、離散選擇模型等經濟計量方法，在開放經濟條件下對中國國際收支項目與國內宏觀經濟變量之間的長期動態影響關系和傳導機制進行了實證研究。Data reconciliation is one of the key elements of cims ( computer integrated manufacture system ) in process industry. by using the redundancy in measurements and process models, it can eliminate mesaurements with gross error ( mges ). reduce random measurment errors and estimate unmeasured variables by using statistical methods
數據協調技術是流程工業cims的關鍵，它利用信息的冗餘性，結合各種統計分析方法和生產過程機理，剔除原始數據中的顯著誤差，降低隨機誤差的影響，並設法估計出未測變量，保證了cims信息源的真實性。Through analyzing decision variable of receiver, the f - pe method can increase autocorrelation of desire user ' s spreading sequence, and improve the ber performance
對接收機判決變量輸出分析表明，該演算法能有效增加關心用戶的解擴濾波相關峰值，對誤碼率性能有很好的改善。Using method of variable difference, random error was parted from general error
對測量誤差中隨機誤差採用了變量差分法進行了分離。分享友人