forward error analysis 中文意思是什麼
forward error analysis
解釋
前向誤差分析-
The model of influence upon the parallel between servo optic axis from the angle error of installation plans presented. whereby the theoretic analysis is carried out and the analyzing results are obtained. the method of obtaining the angle error through measuring the installation plans with three - coordinates measuring device and fitting the measurement data is put forward and pave a road for lessening the influence
對安裝面角誤差影響隨動光軸平行性的問題也建立了數學模型，以此為出發點進行理論分析，給出了分析結果；提出用三坐標測量機測量安裝面，通過擬合得到安裝面的角誤差；從而為減小這一誤差源對隨動光軸平行性的影響鋪平了道路。 -
The analysis of precision about mould - cut main mechanism with clearances is advanced. on the basis of analysis of slider displacement error influenced by the crank length tolerance, the coupler length tolerance and clearances in revolute joints for mould - cut main mechanism, some reasonable suggestions about tolerance distribution of bars length and fitting precision of joints are put forward
考慮運動副間隙對主切機構進行了精度分析，通過分析主切機構中各桿長誤差和運動副間隙對滑塊位移誤差的影響，對商標模切機設計初期桿長誤差分配和運動副間隙配合精度提出了合理的建議。 -
In the base of investigating and analyzing to working theory, measure methods and relevant standard, the text processes particular analyses to the working theory of billing system and reason of making billing wrong and puts forward technology index and measure method that can externally evaluate the capability of billing system and is suit to the situation of our country. some indexes and measure way are put forward for the first time ( example error of call clock, time error and measure method to moving exchanger ' s billing system. ) through analyzing telecom charging way, charging users, charging point and charging methods of telecom basic and all kinds value - added operation and utilizing the newest measure apparatus, modern measure technology, communication technology and probable method, this text puts more scientific, efficient and easily operated measure methods and process a uncertain analysis to measure methods
本文在調查和分析國內外局用交換機計費系統工作原理、檢測方法和相關標準的基礎上，對計費系統的工作原理和產生計費錯誤的原因進行了詳細的分析，提出了適合國情的能夠客觀評價計費系統計量性能的技術指標和檢測方法，有些指標和檢測方法在國內相關資料中屬首次提出，如通話計時誤差和時刻誤差和對移動交換機計費系統的一些檢測方法；本文通過對電信基礎業務和各類增值業務的計費方式、計費用戶、計費點和計費方法的分析，利用國內外最新檢測儀器、現代檢測技術、通信技術和概率統計方法，提出了較科學、有效和利於實施的檢測方法，並對檢測結果的測量不確定度進行了分析。 -
Using the error analysis theory, location error accumulating is analyzed and the lms arithmetic to reduce the location error of the move - in - mud robot is put forward
運用誤差分析理論對拱泥機器人定位誤差累積進行了分析，提出了利用lms演算法減小拱泥機器人的定位誤差。 -
The first - order perturbation method correct for forcing decoupling method based on perturbation theory is put forward to decrease error ; iii. the complex modal method is introduced into analysis of non - classical damping systems to eliminate error of forcing decoupling method, and improve the complex modal response spectrum, which can apply to design of non - classical damping systems ; iv. for exerting the energy dissipation capability of each device, a two - step optimum method, whose controlling function is extremum expectation of interbedded displacement, is put forward to optimize the number and position of device ; v. the problem of iterative method applied to analyze energy dissipation systems is indicate, and give some primary advice based on pilot study
為改善上述缺點，本文進行了以下的研究工作：在忽略耗能器附加質量的基礎上，推導出適用於耗能減震結構的攝動法，減少振型分解法在迭代計算過程中的工作量，加快計算速度；針對運動方程的強行解耦所產生的誤差，根據攝動法原理，對其進行一階攝動修正；為消除強行解耦振型分解法用於非比例阻尼結構分析時產生的誤差，引入狀態空間對系統進行復模態分析，並改進了基於復模態理論的、適用於非比例阻尼結構設計的雙反應譜方法；對于耗能器的數量和位置優化進行了一些探討和研究。 -
Abstract : in view of the quantity examination of weld defect by ultrasonic, on the basis of theoretical analysis and test, the cause, composition and contriling method of error of crack defect size h have been analyzed systematically, a controlling and statistical method of ultrasolic examination error has been put forward. this method is simple and suitable, and has been verified by test
文摘:針對焊縫缺陷超聲波定量檢測，從理論分析與實驗出發，系統分析了裂紋類缺陷自身高度尺寸h的檢測誤差的物理成因、組成及誤差控制方法，提出了一套實用簡潔並經實驗證實可行的超聲波檢測誤差控制及統計方法。 -
In order to get this, some useful explorations on how to analysis and solve the problem of the ill - conditioning have been made and several biased estimators have been put forward. in fact, analyzing the essence, overcoming the effect of ill - conditioning and obtaining more accurate and stable parameters estimator is an new task in gps surveying data processing, which have been determined as an important studying field in contemporary surveying error theory and engineering data processing by the international association of geodesy ( iag )
事實上，分析測量平差系統病態性的實質、克服或減弱測量平差系統病態性的影響、採用有偏估計等方法提高參數估計和平差成果的精度，是當前gps等重大測量工程數據處理中所面臨的一個重要課題，它已被國際大地測量協會（ iag ）確立為現代測量誤差理論及數據處理研究中的一項重要內容。 -
Based on the principles of temperature measurement using infrared thermography and the theory of thermal imaging, a uncooled ir fpa thermometry system is designed. in this system, the mathematic model of infrared thermometry calculation is established, and appropriate formulas for error analysis and calculation are obtained. the algorithm calculating the apparent emissivity of target surface is also put forward
本系統建立了非致冷紅外焦平面熱成像系統測溫計算的數學模型；對計算中可能產生的各種誤差進行了分析和計算；對系統成像的非均勻性進行了分析和校正；提出了精確測量發射率的新演算法；結合熱成像的原理對紅外熱圖像的特徵進行了分析，對紅外熱像進行了新型直方圖均衡和偽彩色增強等處理。 -
Taking the spherical - wrist of robot ' s end as the target of study, a kind of static error analysis method of spherical - wrist expressed by relative posture errors has been put forward
以機器人末端的球腕為研究對象，提出了一種用相對位姿誤差表示球腕的靜態誤差分析方法。 -
Forward roundoff error analysis of the lu and cholesky factorizations
分解的向前舍入誤差分析 -
In this thesis, the general error sources for psi are analyzed. we find that the relatively low - frequency vibrations at 50hz and lower are the main problem through the analysis of the vibration sources in usual environment. a new vibration compensation method, phase modulating interference fringes fractionizing technology, has been put forward in a creative way
本文分析了干涉測量技術中存在的主要誤差來源，通過對通常環境下振源特性的分析，得到了對干涉測試影響較大的振源的頻率范圍主要在30hz以下，確定了抗振補償的目標和技術指標是使干涉儀的振動頻率50hz ，振幅1 m 。 -
In this dissertation, put forward a practical modal to forecast the probability of human error and analyze the effect of reliability as a result of human error based on the analysis of cause and effect of human error during construction ; put forward the model of considering the effect of human error and the practically method of calculate fuzzy - random reliability considering the effect of human error ; popularize the theory of traditional random reliability to the theory of fuzzy - random reliability, and discuss the theory of reliability of the whole - course in structural life ; put forward the countermeasure to reduce human error according to the fact
本文通過對施工過程中人為錯誤的因果分析，建立了比較實用的人誤概率預測模型，分析了施工過程中人為錯誤對結構可靠度的影響；提出了考慮人為錯誤影響的結構模糊隨機可靠度的模型和實用的計算方法，將傳統的隨機可靠度理論推廣到模糊隨機可靠度理論；還探討了結構生命全過程可靠度理論，並結合實際情況提出了減少人為錯誤的對策。 -
This paper studied zero - velocity correct technology for ins, based on analysis of ins error equation, it concluded the method by which we can use ins velocity output to estimate the attitude angle error when the vehicle halted, then it contrasted two schemes of conic approximation of attitude angle error and put forward a method to decide the approximation coefficient by time range
本文首先研究了車載捷聯慣導系統（ ins ）的零速修正技術，在分析捷聯慣導系統誤差方程特點的基礎上，推導了停車時利用ins速度輸出估計姿態誤差角的方法，並對用二次曲線擬合姿態誤差角的兩種方案作了比較，提出了按時間分段確定擬合系數的方法。 -
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。 -
The formulation for the error analysis of acoustic radiation problem calculated by the boundary point method ( bpm ) is put forward ; the physical explanation of the boundary point analysis of the acoustic radiation problem is given ; the influence of the particular solution on the calculation stability of the bpm is studied ; the etthanced volume source boundary point method ( evsbpm ) is presented ; a test for the effectiveness of the evsbpm is carried out on the aspects of its calculation precision, calculation speed, calculation stability, adaptation to the geometric shape of vibrating body as well as its ability to overcome the non - uniqueness problem through various examples with different boundary shapes and different boundary value distributions
第三章導出了邊界點方法分析振動聲輻射問題的誤差估計理論公式，揭示了邊界點方法分析振動聲輻射問題的物理本質；研究了特解場的局部特性對邊界點方法的數值穩定性的影響；改進了現有的特解場構造方法，提出了改進體積源邊界點方法；通過諸多不同邊界曲面和不同邊界量分佈的聲輻射算例，從計算精度、計算速度、計算穩定性、對振動體表面幾何形狀的適應性以及克服解的非唯一性等方面，對改進體積源邊界點方法的有效性進行了考證。 -
Then test the time delay bandwidth and probability of error - code of power line carrier conmmunication network by plca - 22 protocol analyse apparatus to testify the validity of the system. at last i compare the results tested by the performance test virtual system and plca - 22 apparatus respectively, and analysis the virtue and shortage of the performance test virtual system, then bring forward the means to improve
然後使用plca - 22協議分析儀對此電力線載波網路的延時、帶寬、誤碼率進行測試，以驗證本電力線載波通信性能虛擬測試儀設計的正確性。最後對比電力線載波通信網路性能虛擬測試儀和plca - 22測試出的結果，分析電力線載波通信網路性能虛擬測試儀的優點和不足，提出了改進的方法。
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