curve fit 中文意思是什麼
curve fit
解釋
曲線擬和-
We collect distributing of near - field of optical switch output - port. using gaussian curve fit, we measure the extinction ratio of " bar channel " is 8db, and the extinction ratio of " cross channel " is more than 18db
利用紅外攝像機採集的光開關輸出的近場分佈，採用對場光場能量高斯擬合的近似方法，測得該關注入光開關的直通端的消光比可以達到8db ，而反射端的消光比則至少可以達到18db以上。 -
Through the fluorescence spectra, ft - ir spectra and curve - fit, the effect of lanthanum ( iii ) on horseradish peroxidase ( hrp ) was studied
運用螢光光譜、傅立葉變換紅外光譜以及曲線擬合等技術研究了鑭離子對辣根過氧化物酶的結構的影響。 -
After analyzing the switching characteristic of mosfet, the object function of optimizing curve of the output capacitance coss is confirmed according to the switching loss caused by output capacitance coss, then the optimized curve of the output capacitance coss is ascertained by applying zoutendijk to seek the optimized value with constraint ; the simulation of switching circuitry and dc - dc circuitry is tested at different frequency in pspice, then the least square method is adopted to fit simulation curves to calculate corresponding energy data
在電子線路模擬軟體pspice中進行了mosfet開關電路以及典型dc dc轉換線路模擬測試，針對不同頻段的測試結果，採用最小二乘擬合法對模擬曲線進行擬合，計算出相應的能量數據，最後綜合模擬結果確定出減小器件開關損耗，提高dc0c轉換線路效率的器件輸出電容cob優化曲線。 -
Using the three ? arameter solid model and the burgers four - parameter model to fit the creep curve separately, it was found that the burgers model can describe the creep process more well, and then provide parameters for finite element analysis of asphalt concrete cores for embankment dams
用三元固體模型和burgers四元模型來擬合瀝青混凝土的蠕變曲線，發現burgers模型能夠更好的描述瀝青混凝土的蠕變過程，為土石壩瀝青混凝土心墻的有限元計算提供參數。 -
Among most curve fit methods, grey model curve can be used to describe embankment settlement
摘要在眾多的曲線擬合方法中，灰色模型曲線可以用來描述路基沉降。 -
Then the measured frequency characteristic can be converted to high accurate transfer function with curve fit method, rational initial parameters choice and fitting in different frequency range method
使用曲線擬合方法，輔助以合理的初始參數選取及分段擬合方法，將測量得到的控制對象頻率特性轉化為高精度的傳遞函數。 -
The second aspect is the study and application of fitting method after introducing curve fitting method, we will study least - squares procedure used frequently in engineering fields. in addition, we will encode according to item requirement and least - squares procedure algorithm, then using the data picked from image processing to fit the equation we needed
在介紹了曲線擬合方法之後，主要研究工程設計中常用的最小二乘法，根據課題要求以及最小二乘法的演算法要求編寫源碼，將圖像處理后採集來的數據擬合成所需要的方程。 -
Then making use of the theory, we got the rightful scale of hubei highway net. the 4th section firstly summed up the development course of hubei ' s highway, and then utilized the growth function curve to fit it
然後結合理論，對湖北省公路網的合理規模進行了探討；第4章對湖北省公路的發展歷程進行了總結，在此基礎上利用生長函數曲線對其發展軌跡進行了擬合和預測。 -
Under windows nt and labview development environment, using the linear fit module, exponential fit module > general polynomial fit module of labview to design a method for fitting the experiment data, the results of curve fitting indicate that the purpose of general polynomial fitting is better than the rest. separating the equivalent input impedance of magnetostrictive transducers without stimulate current from input impedance of it with stimulate loop based on the results of curve fitting, and determining the syntony frequency and electric simulation network parameters of magnetostrictive transducers by this input impedance. finally, with labview network functions, realizing magnetostrictive transducer electric simulation system based on web server and discussing a scheme for this system network by datasocket. the method of this paper can more accurately determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers than the testing method of syntony & anti - syntony. at the same time, discussing virtual instrument measurement system and how to realize magnetostrictive transducer electric simulation network system by labview network functions of network virtual instrument measurement development environment
在windowsnt系統環境和labview虛擬儀器技術開發平臺下，首次利用labview中的直線擬合模塊、指數擬合模塊以及多項式擬合模塊，設計了一種對實驗所得數據進行曲線擬合的方法，對三種擬合方法進行了比較，曲線擬合結果表明，多項式擬合方法相對于其它兩種擬合方法效果更好；根據曲線擬合的結果可從帶激勵線圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵電流時機械振動形成的等效輸入阻抗，並由此輸入阻抗確定了磁致伸縮換能器的諧振頻率及其電氣模擬網路參數；最後通過labview提供的網路功能，實現了基於web服務器的磁致伸縮換能器電氣模擬虛擬儀器測試系統，並探討了通過datasocket技術實現該系統網路化的方案。 -
Data processing is performed by pc ， which includes detecting rough error by quartile method base on first order differential, adopting three points algorithm to eliminate deviations of rack displacement and installation, applying minimum containing area method to evaluate the sectional plane radius of roller and realizing it by genetic algorithm, adopting akima method to fit curve of roll profile
主要的數據處理工作在上位機進行，採用基於差分法的分位數演算法剔除粗大誤差；採用三點式測量原理消除探頭的安裝及運動所產生的誤差；採用最小包容區域法評定軋輥半徑，並應用遺傳演算法實現最小包容區域法的尋優計算；採用阿克瑪插值方法進行輥型的曲線擬合。 -
In this paper, the waterway curve plane function is established with move fit method to calculate the depth value of grid points, and in part fields linear method is adopted because of the distributing scrambling of waterway measure points. as a result of the use of two methods, not only the calculating precision is high but also the calculating speed is very fast
本文選用移動擬合法建立航道曲面函數，插值計算航道測量區網格點的深度值，並且根據航道測量點分佈的不規則性進行了優化，即在測量點稀少的地方運用了線形內插法代替移動擬合法來進行插值計算，兩種插值方法的合理結合，不僅保證了插值的精度，特別是提高了插值的計算速度。 -
This process is as follows : firstly, the data of different section contour and of section line have been obtained by reverse - engineering ; secondly, non - uniform b - spline approximation algorithm is used to fit the discrete data ; then the data have been optimized and reduced by adopting adaptive sampling of key points of the fitted curve based on vertical distance, sequently the adaptive sampling data is transformed into the format of the. ibl file of the famous 3 - d design software pro / e. therefore we reconstruct the surface and a model is generated ; lastly, the effectiveness of the adopted algorithm and modeling approach are demonstrated by the experiments
建模型的過程中，首先運用逆向工程測量方法，獲得曲面物體上不同截面輪廓線的測量數據點列，接著對測量數據點進行平滑處理，用最小二乘法求解基於數據點列的控制多邊形，以非均勻三次b樣條曲線擬合截面輪廓曲線；然後利用基於垂距的數據采樣演算法，對擬合曲線上的數據點進行重新采樣，達到優化數據點的分佈及減少描述曲線數據量的目的。 -
It offers the idea according to problem faced, considering the good character of the ends, the ajusted cubic b - spline curve is used to fit ship lines. it finds out the control vertexs according to a sequence of given points, and then, through particular formula, each point in the curve could be worked out. it smoothes lines with the method based on small - paramter
針對面臨的問題，提出了自己的思路，在數學計算方法上，由於三次準均勻b樣條曲線良好的端部性質，這里用它來擬合船舶型線，首先根據所給的初步型值求出其控制頂點，然後根據相關公式進行插值便能得到曲線上的所有插值點。 -
Only clouds of points instead of grids are distributed over the computational domain and the spatial derivatives of the considered partial equations are estimated using a least - square curve fit on local clouds of points
與傳統的網格方法不同，無網格方法的核心是用「點雲」離散求解區域，並基於當地點雲離散結構，引入二次極小曲面逼近空間導數。 -
The macromodel is built up with the combination of device simulation and nonlinear curve fit, which makes the extraction of the substrate parasitic parameters more convenient and the circuit simulation more accurate
該宏模型通過器件模擬與非線性擬合相結合的方法建立，使襯底寄生參數的提取更加方便，同時保障了深亞微米電路特性的模擬精度。 -
Only clouds of points instead of grids are distributed over the computational domain and the spatial derivatives are estimated using a least - square curve fit on local clouds of points. the paper gives discrete form for euler equations on base of gridless method, and adopts five steps runge - kutta scheme for time - marching. the numerical results have been obtained for the 2 - d flows over airfoils or multi - element airfoils using the method presented
本文首先對無粘euler方程進行無網格離散，並運用顯式runge - kutta格式推進求解，成功地數值模擬了二維單段和多段翼型的繞流；在此成功的基礎上通過在euler方程的右端加入粘性項，使求解方程變為層流navier ? stokes方程，得到了翼型繞流，數值結果顯示出粘性的影響。 -
We can infer the em parameters of pure carbonyl - iron from the em parameters of ds of various content by curve - fit simulating and interpolation. maxwell - garnett ( mg ) formula and bruggeman formula is applicable for spherical particles ds
Maxwell - garnett公式和bruggeman公式是適用球形顆粒復合體系的經典計算公式，本文將兩組公式及maxwell - garnett擴展公式運用於羰基鐵粉分散體系。 -
The comparison research of curve - fit methods on wind - shaft centerline measurement
軸線測量中的曲線擬合方法比較研究 -
The software includes patents analysis and statistic, curve fit and algorithm implementation
該軟體包括專利的統計分析、曲線擬合和演算法實現。 -
In the experiment of this thesis, a high accurate measurement system based on linear array ccd is made up ; the illumination system is improved, and curve fit is adored to obtain the margin value. finally, the size of the obtained object is less than the pixel dimension according to lens magnification p
本文建立了基於線陣ccd的線徑高精度測量系統，在對照明系統改進的基礎上，採用曲線擬合求拐點的方法來提取信號的邊緣特徵，最後根據透鏡的放大倍率得到低於ccd像素尺寸直徑。
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