least-square fit 中文意思是什麼
least-square fit
解釋
最小平方湊合-
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。 -
To date only discrete points are obtained, but not the surface of the scene. hence a least - square method is used to fit terrain surface
對整幅圖來說，完成點的重建后得到的僅僅是圖像上的一些離散點。 -
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 orthogonal design and least square methods were used to fit the response surface, and the optimal one was obtained by the numerical optimization program dot
根據正交試驗設計法安排每個試驗點，最小二乘法擬合響應面，利用dot程序得到該響應面的最優值。 -
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。 -
The linear least square fit is used in energy calibration and geometry calibration, and the nonlinear least square fit is used in peak fitting and region fitting
其中能量刻度與幾何刻度時採用了線性最小二乘法，而能峰擬合與譜段擬合時採用了非線性最小二乘法。 -
Using the home made device, the relationship between the 3 voltage and the heating frequency is obtained by lock - in amplifier, thus the thermal conductivity of the fluid is calculated with the least square fit method
自行研製了流體導熱系數的測量裝置，採用鎖相放大器獲取3電壓與頻率的關系，並藉助最小二乘法，算出待測試樣的導熱系數。 -
Then, the hilbert transform is applied to each modal response to obtain the instantaneous amplitude and phase angle time histories. a linear least - square fit procedure is proposed to identify the natural frequency, damping ratios, physical mass, damping and stiffness matrices from instantaneous amplitude and phase angle for each modal response
然後對各階模態響應進行hilbert變換，得到瞬態幅值和相位角的時間歷程，再運用線性最小均方擬合來識別自然頻率、阻尼比、質量、剛度和阻尼矩陣。 -
We sample from parallel edges in equal distance, and we sample again from sample points set by slope and get fitting points set, then we use least square method to fit straight line with the fitting points set. the edges of paper currency image can be detected accurately and quickly by above method, and it is valid to some image with a certain defection
邊緣檢測採用了對平行邊緣整體等間隔抽樣，根據斜率對抽樣點集進行再次抽樣后得到擬和點集，用最小二乘法根據擬和點集擬和直線的方法，可以快速精確的檢測到紙幣邊緣，並且能夠處理邊緣有一定程度殘缺的紙幣圖像。
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