index of error 中文意思是什麼
index of error
解釋
誤差指數-
This paper analyses the critical angle method that often use in focus detected. we receive two relations, the first relation between refractive index of the critical - angle prism and focus - error signal ; the second relation between numerical aperture of object lens and out - of - focus error signal
本文針對伺服系統中常用的調焦方法-臨界角方法進行了分析，理論上得到臨界角棱鏡的折射率、物鏡的數值孔徑與離焦誤差信號的關系。 -
Index error of vertical circle
豎盤指標差 -
The paper also does some deep research on the mesh characteristic of the mechanism, analyses the cause o f the cam profile error and index error during working, using object - oriented method, vc + + and pro / toolkit, performs second development to pro / engineer, completes entity proplasm of the cam mechanism using only few parameters, the press angle calculate module, error analysis module and curvature calculate module are built on the basis of it
然後通過對弧面分度凸輪加工中產生廓面誤差及工作時產生分度誤差原因的分析，建立了計算加工和分度誤差的數學模型。應用vc + +和pro toolkit對pro engineer進行二次開發，建立了弧面分度凸輪機構的參數化設計和三維造型及壓力角、誘導主曲率等運動特性和誤差分析軟體系統。 -
The improvements in the iaga contained adding strengthen operator, improving evaluation index of premature, etc. multi - phase homing project, making use of the flight properties of parafoil system in gliding and turning, was simple in control and facile in practice. based on frenet frame, the linear time - variable error equations of parafoil system were built
基於frenet坐標系推導和建立了翼傘系統線性時不變的誤差方程，並運用「投影點」的思想來獲得frenet坐標系下偏差量的解析近似表達式，從而設計了用於翼傘系統航跡跟蹤的傳統pd控制器和增益調節型模糊pd控制器。 -
An improved viterbi algorithm of dsp generat ion is brought up to, and a new coding gain testing system is designed. the system tests the coding gain of the error - control system, and the coding gain is 9. 4db which exceeds the proposed index. at last, some suggestions are presented for the work in the future
在對維特比譯碼演算法研究的基礎上，提出了維特比譯碼演算法基於dsp的改進方法，並且設計出一種新的編碼增益測試系統，對卷積編碼和維特比譯碼組成的差錯控制系統的編碼增益進行了測量，測試結果為9 . 4db ，優于設計指標，最後提出了一些對將來工作的建議。 -
Based on the introduction and analysis of the approach of h ( subscript ) loop shaping, aiming at the problems that the weight functions are chosen by trial and error, and the synthetical performance index of the controller is hard to meet the frequency and time domain performance requirements, an improved weight function selection method is proposed based on engineering design and chaos optimization
摘要在介紹和分析h （下標）迴路成形基本設計力法的基礎上，針對權重函數選取需要反復迭代、過程繁瑣、所得控制器難以同時滿足時域和頻域性能指標等問題，提出了一種基於工程設計、輔以混沌優化理論的權重函數選取方法。 -
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。 -
The stress is basing coal - fired boiler inflammation system feature and control demand to design a kind of fuzzy - pi controller on based of genetic algorithm to control it. the controller refers the error and its variety rate as its inputs. and, in order to make the control qualities much better, concerns them as the performance index to optimize the membership function of the fuzzy variables and the pi ' s controller parameter by means of online adjujsting the genetic algorithm, inflammation system steam pressure loop and economic inflammation loop
重點是針對燃煤鍋爐燃燒系統的特點和控制要求，設計了一種基於遺傳演算法的模糊- pi復合控制器對其進行控制，該控制器以偏差、偏差變化率作為輸入量，通過遺傳演算法在線調整模糊控制器的模糊變量隸屬度函數和pi控制器的參數，從而達到優化模糊控制規則和pi控制器參數的目的，實現燃燒系統的蒸汽壓力迴路和經濟燃燒迴路的控制要求。 -
The paper explains the control force with the center of performance index. the static error is an important index of the control system
穩態誤差是控制系統一個很重要的性能指標，在九點控制器中k _ 0是穩態時的控製作用。 -
The tests of e - o applications by our flux ktp has been realized, the results showed : optical waveguides fabricated by using an ion - exchange process, which have an exchange - ion concentration depth profile and refractive - index profile, is close to a complementary error - function distribution, optical homogeneity and device thermal stability is much better. amplitude modulation switch formed by our flux ktp has the contrast ratio of 150 : 1 and insert loss is 2. 5 % at 1064 nm. high quality optical pulse with 1 ns width was cut successfully by using an e - o modulator from a laser pulse with 50 ns width, this modulator had run for three years, and the crystal did n ' t blackened, it showed our low conductivity flux ktp can endure high modulation voltage for a very long time
Ktp晶體的電光應用試驗表明：用離子交換法製作的電光波導，其離子交換濃度、折射率變化符合餘弦誤差函數，光學均勻性以及器件的溫度穩定性較好；製作的強度調制電光開關，消光比為150 ： 1 ，對1064nm激光的插入損耗為2 . 5 ；製作的電光調制器用於激光脈沖整形試驗，從脈沖寬度50ns的激光脈沖削出脈寬1ns的高質量光脈沖，該電光開關經過長達三年多的使用，沒有出現晶體變黑現象，說明本實驗的低電導率ktp晶體能夠耐受長時間的調制電壓。 -
This thesis analyzed various error resources in gps surveying and advanced appropriate correction measures ; it introduced theory and method that estimate parameter in reliability study, and then, deduced adjustment mathematic model of gps network ; based on analyzing characteristics of reliability study of gps network and outlier analysis, it carried profoundly out study on issue about reliability of gps network, deduced and summarized target of reliability of gps network, including redundant observation component of gps baseline vector and inside & outside reliability index, advanced a theory about reliability of gps network based on correlative analysis, and summarized methods that improve reliability of gps network ; it worked out a software of reliability analysis about gps observation, which made reliability analysis automatic and convenient
論文分析了gps測量中的各種誤差來源，提出了相應的改正措施；介紹了可靠性研究中參數估計的理論和方法，進而推導出gps網平差的數學模型；在分析了gps網可靠性研究和粗差分析特點的基礎上，對gps控制網可靠性問題進行了深入的研究，推導總結出了gps網可靠性指標，包括gps基線向量的多餘觀測分量、內部可靠性和外部可靠性指標，提出了基於相關分析的gps控制網可靠性理論，總結出了提高gps控制網可靠性的措施；編制出了gps觀測數據可靠性分析軟體，使可靠性分析自動方便。 -
The results indicate that : only with a few rain gauges to adjust the radar estimated rainfall, authors could simulate the runoff as good as that from rain - gauge - network - measured rainfall ; the accuracy of radar rainfall estimation to heavy rain acts as a more important role than that of light rain ; the estimation error of amount precipitation over a period can be treated as an index for runoff simulation ability
在1500小時時間序列的比較試驗表明，雷達估測面雨量和雨量計測量的面雨量都能較好地模擬每小時流域出口蔣集的出流量，數值試驗還表明，雷達估測面雨量在某一時段上的均值誤差作為一個指標可以較好地反映其應用於降水徑流模擬時的精度總雨量和強降水的估測精度是雷達估測面雨量能否用於徑流模擬的關鍵。 -
Abstract : the generalized shrunken prediction of finite population is introduced, using generalized shrunken least squares estimator of linear regression models. with respect to prediction mean squared error, a necessary and sufficient condition for superiority of a generalized shrunken prediction over the best linear unbiased prediction is obtained. in the case of linear combination of every unit index, a linear restricting prediction is introduced and then a necessary and sufficient condition for superiority of linear restricting prediction over the best linear unbiased prediction is devived
文摘:利用線性回歸模型的廣義壓縮最小二乘估計，引入了有限總體的廣義壓縮型預測，在預測均方誤差意義下，得到了廣義壓縮型預測優于最佳線性無偏預測的一個充分必要條件；在只能得到每個個體指標的線性組合時，引入了一種線性約束型預測，並得到了線性約束型預測優于最佳線性無偏預測的一個充分必要條件 -
The first generation spatial analysis database system, sadbs, uses " realms " as expression base of spatial data. it adopts discrete integer coordinate system to solve topological error in spatial database. it also uses multi - index data organization and plane - sweep algorithm, which improve the performance of spatial analysis operations
第一代空間分析數據庫系統sadbs使用realms作為空間數據的表示基礎，它利用離散化的整數坐標系統，解決了空間數據庫的拓撲誤差問題；使用多索引的數據組織方法，引入平面掃描演算法，提高了空間分析操作的性能。 -
To index fund, tracking error measures accuracy of an index portfolio tracking the benchmark portfolio, the larger the
對指數基金而言，跟蹤誤差度量了指數化投資組合跟蹤基準投資組合的準確程度，較大的跟蹤誤差意味著指數基金可能面臨著較高的投資風險。 -
4. lastly, each performance index of torpedo self - guided array signal source is tested by experiment and system error is analyzed
4 .通過實驗，測試了魚雷自導陣列信號源的各項性能指標，並進行了誤差分析。 -
A deep beam model with spring bearing is given, based on the analysis of middle frame of frame and shear wall structure ground floor, which is sensitivity to floor rigidity. comparing rigid assumption to elastic assumption, shear error of frame is worked out, which is index of floor rigidity. conclusions are drawn that floor rigidity is independent of earthquake intensity and the most effect factor to floor rigidity is floor length to width ratio
以樓板按剛、彈性計算的框架柱的剪力誤差值作為衡量樓板剛性的指標，通過對模型進行理論分析證明以往一些只能通過歸納總結得出而沒有理論支持的結論：樓板的剛性同地震烈度無關；通過對影響樓板剛性的各個因素進行分析比較，得出樓板的長寬比是影響樓板剛性的主要因素，而增加樓板的厚度並不是增加樓板剛性的有效途徑。 -
The zero - based index of the error to retrieve
要檢索的錯誤的從零開始的索引。 -
However in fact, there are many factors such as the error in the goal of student appraisal of teaching 、 the imperfect index of appraisal 、 the diversity among students and improper result reduction etc during carrying out student appraisal of teaching
但在評教實踐中去卻存在著學生評教的目的性不強、評估指標不完善、學生個體差異影響大、評價結果處理不當等影響學生評教信度和效度的問題。 -
In order to make the quad ( quasi - accurate detection of outliers ) more reliable, objective, practicable and convenient to be automated, the authors modified observation order index, gross error determination standard, and unit weighted root mean square ( rms ) correlated to gross error determination standard
摘要為了使擬準檢定法能夠更加可靠、客觀、實用，便於實現自動化，對擬準檢定法進行深入的理論研究和數值試驗的基礎上，對觀測值的排序指標、粗差的判別準則、判別標準中涉及的單位權中誤差等有關實施細則做了適當的改進。
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