誤差響應 的英文怎麼說
中文拼音 [wùchāxiǎngyīng]
誤差響應
英文
error responses-
Finally, the controller working based on the combination of rbf neural networks and traditional pid control was applied to in aclinic kinetic machinery and lifting machinery of tower crane. the simulation of this controller was made using matlab, and the simulation results showed that the control system has some merits, such as quick response, little overshoot, well anti - jamming capacity, and little steady - state error, etc. both the dynamic property and static characteristic of this controller are better than traditional pid controller, and meet the tower crane
應用matlab對塔機的變幅和起升機構的運動控制進行模擬，模擬結果表明基於rbf神經網路整定pid的控制系統具有響應快、超調小及穩態誤差小等優點，其動、靜態性能優于單一pid控制，從而提高了塔式起重機工作機構的工作性能。In digital relay, the percentage of noise will increase rapidly with the increase of sampling rate when derivation calculus is substituted by sampled difference term. to solve this problem, a new method using fragment function integrated with the least square algorithm is proposed in this paper. the influence of white noise is greatly reduced and the accuracy of the dead angle calculation is nicely improved after adopting the new method
在數字式保護中，如果用差分代替求導將導致噪聲的百分比誤差隨著采樣頻率的提高而劇增，本文對此進行了分析並提出了用分段樣條函數最小二乘法來計算電流波形的導數值，以便在提高采樣率的同時降低噪聲誤差的影響，並將其應用於基於32位浮點dsp的新型變壓器保護裝置。According to whether the light intension is in the zone of ccd linear response we control the direct current dynamo to drive the light filter to reduce the measure err effectively
根據光強是否在ccd線性響應區間這一結果來控制電機帶動濾光片轉動，實現了對光強的自動調節，從而減小測量誤差。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。Abstract : in fourier transform profilometry, because of the nonlinear relationship between the irradiant incident upon a ccd dete ctor andthe voltage it outputs, it will cause phase evaluation errors. here, we ex plain the errorsource by theoretical deducing, then make a simulation. at last, a method to decrease thiserror is put forward
文摘:在傅里葉變換輪廓術中，由於ccd探測器光電響應的非線性，將在測量中引入高次項，從而對相位的求解造成較大誤差，通過理論的推導定性地解釋了誤差的來由，並用計算機進行了模擬計算，最後提出了減小誤差的方法。The slight difference in response time of 1 msec would not be perceivable, and is likely due to measurement variability
響應時間的差異只有1 msec ，可以無需考慮，而且可能是由於測量的誤差引起的。To improve the precision of the piezoelectric stage further, a scanning close loop system based on the mathematical model is studied and designed. experiments are also desinged to prove the precision of the close loop system. the experimental results demonstrate that the positional error of the system reduces to 0. 1 %, and the close loop system has high dynamic performance and position precision
為進一步提高工作臺的定位精度，本文建立了基於遲滯模型的閉環掃描控制系統，並對系統的定位能力進行了實驗，實驗結果表明，系統最大定位誤差減小至0 . 1 % ，該控制系統兼顧了系統的動態響應和高定位精度。Whirlabout flat drive system adopts direct current electromotor and servo system is closed loop. the system carries out the response of adjusting shipboard 90 ? within 1. 8 seconds and orientates accurate position simultaneously ( the error is within ? ? )
同時為實現1 . 8秒調舷90的響應，並調舷定位在精確方位上（誤差在20之內） ，伺服系統以線性? ?非線性系統來實現。Secondly, in phase unwrapping to overcome the spread of wrong point, changing the patch of unwrapping phase is done to improve the correctness of it. then, the relation between the unwrapping phase and the height of reconstructed object is discussed detailedly. the data processing, algorithm analysis and reconstructing object are done for the collecting fringe image which are all based on matlab language, in all these achievements, the improvement and innovation aspect are following : a ) in order to stabilize the interference fringe, a new equivalent shifting object method is presented by using fringe stabilizing device to stabilize the interference fringe though moving object and ccd camera which fixed on a precise moving platform together, the experimental result shows the fringe drift is less than a / 20 in five minutes, and the equivalent phase shifting precision is x / 100
論文在全面闡述了光學三維輪廓位相測量術的發展、應用現狀、研究熱點及未來發展趨勢的基礎上，簡要介紹了傅立葉變換和相移位相輪廓測量術的基本原理，對兩種測量方法存在的問題及誤差進行詳細分析和比較；針對位相解包裹錯誤點的傳播問題，作者通過改變解包裹路徑來提高位相解包裹的正確性；分析討論從解包裹位相（ x ， y ）到再現物體的高度h （ x ， y ）物理量之間的關系，研究相應的演算法，利用matlab平臺，對實際採集的條紋圖像進行處理和輪廓重構，其中改進及創新工作主要表現在以下兩個方面： （ a ）針對干涉型結構光場干涉條紋出現的漂移抖動對相移的影響，提出了一種用條紋穩定器穩定干涉條紋，用精密移動平臺使物體和ccd攝像頭同步移動實現等效相移的方法，建立了相應的測量系統，系統的條紋穩定可以達到。With an introduction of the influences of the final quality of rail aluminothermic welding, such as : the quality of welding kits ( esp. the portion ), the result of pre - heating, the welding operation and the level of operators etc., this paper analyzes some problems when rail welding under special conditions
摘要介紹了焊接材料質量、預熱效果、操作人員水平等因素對鋼軌鋁熱焊接接頭質量的影響，以及幾何誤差不同、軌頭寬度不等、寒冷氣候等特殊條件下進行鋁熱焊接應注意的問題。Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications
本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術，主要研究成果包括以下幾方面:首先，建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型，分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析，數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略有下降而不太適合;在分析定向精度確定性影響因素的基礎上，提出了雙星定向精度衰減因子odop的概念，揭示了雙星定向誤差特殊表現的內部機理，對實際工程應用具有重要的指導意義。In hardware designing, the feasibility to use a / d acquisition board, signal conditioning board and the relay output board which are more professional at present to construct the hardware of the computer control system was explored, the algorithm pid was used to advance the respond to error and stability of the whole system, through selecting proper a / d, d / a, di / do board cards, a special computer control system was constructed. in software designing, the language borland c + + was
在硬體設計上，探索採用目前較為專業化的a / d轉換卡、信號調理板和繼電器輸出板構成計算機控制系統硬體結構的可行性，並採用pid控制以提高系統對誤差的響應和整個系統的穩定性，通過選用適當的a / d 、 d / a 、 di / do等板卡，構成一個很有特色的計算機控制系統。Therefore, a model of three sectors, respectively referring to domestic sector, manufacturing export sector and primary product export sector, has been established here to measure the technology spillover effects of export on domestic sector. finally, based on a broader framework, this dissertation went on to investigate the relationship between openness and china ' s economic growth, while the result shows that though there exists a notable dispute about how to measure the degree of china ' s openness, the index of trade dependence still maintains the better one to reflect china ' s economic openness. in the meanwhile, impulse response function ( irf ) method and forecasting errors variance decomposition ( fevd ) method, both of which are based on the vector auto - regression ( var ) system, are used here to investigate the dynamic relationship between openness and china ' s economic growth
與傳統理論不同，新增長理論和新貿易理論都強調技術進步的作用，因此本文構建了一個三部門的技術外溢效應模型（國內部門、工業製成品出口部門以及初級產品出口部門） ，考察了工業製成品出口和初級產品出口對國內非出口部門不同的技術外溢效應；第四，從更加廣闊的視野就貿易開放度與中國經濟增長問題進行研究，有關貿易開放度如何度量一直是存在較大爭議的問題，本文首先對該類研究文獻進行了較為詳盡的述評，然後運用生產函數方法對所選取的5個貿易開放度度量指標進行了檢驗，結果發現盡管一些已有研究認為外貿依存度無法真實度量一國經濟開放水平，但是本文研究結果表明外貿依存度仍是度量我國貿易開放度的較好指標，進一步採用基於var系統的脈沖響應函數法以及預測誤差方法分解法對貿易開放促進經濟增長的作用進行了動態刻畫。Based on the principle analysis of the vehicle driving wandering and the computer simulation validation, the vehicle driving wandering caused by the variation of these parameters such as camber angle, toe angle, caster moment arm, scrub radius, parallelism between front axle and rear axle, is analyzed and discussed
摘要通過對汽車行駛跑偏的機理分析，並應用計算機模擬進行驗證，對由於尺寸誤差所引起的外傾角、前束角、主銷拖距、主銷偏置距、前後軸平行度等參數的變化對汽車行駛跑偏的影響進行深入的分析和探討。In the thesis, i introduce the theory and application of gps carrier phase measurement, analyze the errors in the observation of gps signal, study the ways to reduce these errors, specially for the error caused by multipath
論文介紹了gps載波相位測量技術的原理和應用，分析了gps觀測量的誤差，研究了減小和消除各種誤差的方法，重點是減小多徑效應的影響。Through the simulation and error comparison between classics regression model and neural network model, it showed that bp should be applied in liquid concentration measurement system to improve measurement accuracy and decrease the non - linear effect from temperature
通過模擬研究，與傳統的回歸模型進行誤差對比，得出了應採用bp神經網路技術建立智能化液漿濃度測量模型，提高測量精度，克服溫度變化非線性影響的結論。Abstract : a detailed analysis is made of the errors made by the system trace, of the mutual relation between trace error and contour error and of the effect on accuracy produced by contour machining, and some computation formulas have been worked out
文摘:從進給伺服系統動態響應、滯后特性角度，較詳細地分析了跟隨誤差產生的原因，跟隨誤差與輪廊誤差之間的相互關系和對輪廊加工產生的精度影響，並給出了具體的計算公式。The algorithm can not only eliminate the influence of the cumulative errors of the photoelectric code recorder, but also it can satisfy the requirement of the real - time control. a direct inverse model controller of fuzzy neural network with changeable structure based on takagi - sugeno inference is presented and it is used to the motion control of mobile robot. in order to avoid the obstacles successfully, detection results from ccd and ultrasonic sensors are fused by a fuzzy neural network, which acts as an avoidance controller
包括移動機器人的融合自定位問題：移動機器人利用光電編碼器進行自定位，同時用擴展卡爾曼濾波器融合多個超聲波傳感器的測量值，採用回朔演算法將融合值用於復位光電編碼器，消除了光電編碼器累積誤差的影響，並能滿足實時控制的要求：並提出一種基於takagi - sugeno模型的變結構模糊神經網路直接逆模型控制器，並應用於移動機器人的運動控制；利用模糊神經網路避障控制器融合ccd攝象機與超聲波傳感器探測到的環境信息，以實現機器人的安全避障。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誤差響應基於名義系統穩定的零、極點近似相消的時間域積分約束，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時間延長或者誤差響應的無窮范數變大.因此，在反饋控制系統設計中，盡量避免補償器的零、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）Based on the randomicity of the alignment errors, the method called " pseudo random number " is presented to simulate pseudo alignment errors. the theory of producing pseudo random number has been studied systematically. the method above - developed can be used to simulate pseudo alignment errors, and an example illustrates the method
分析了安裝誤差對結構/機構的影響，針對安裝誤差隨機性的特點提出了用偽隨機數生成的方法來模擬產生「偽安裝誤差」的思想；全面系統地研究了偽隨機數的產生理論和方法，同時闡述了安裝誤差的統計原理；開發了一個能夠用於模擬產生偽安裝誤差的應用軟體，並給出了安裝誤差模擬的算例。分享友人