• A four-parameter sine wave curve-fit method is intro - duced, which is based on the three-parameter sine wave curve-fit method and its an absolute convergent course.

    介绍一种用三参数正弦波合算实现的、绝对收敛的四参数最小二乘正弦波拟合算法,给出了收敛区间、绝对收敛判据以及实现过程

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  • Applications and research status of signal distortion measurement are reviewed, and the curve-fit method and its applications in signal distortion measurement are introduced.

    概述了失真测量应用研究现状介绍了基于曲线拟合法的失真度测量方法

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  • The uncertainty of evaluation results of delay between channels of linear measurement system by using the least mean square four-parameter sine-wave curve-fit method is described.

    介绍了正弦波拟合法评价测量系统通道延迟时间差不确定度的分析和评定过程。

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  • Least square method of polynomial or the method based on the given function are used to fit pump characteristic curve in pump selection or operation.

    水泵选型运行中,通常采用多项式最小二乘法或根据假设函数关系拟合水泵性能曲线

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  • Sinusoid curve fit is a very useful method in precise measurement, based on the modeling measurement.

    四参数正弦波拟合法种在精密测量中广泛使用数学手段。

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  • The method USES the DC component and the first harmonic of a curve's chain code expressed by Fourier series to fit the curve, avoiding the inverse calculation of an array used in general methods.

    方法利用闭合曲线傅立叶级数表示直流分量次分量实现对闭合曲线的椭圆合,可以避免通常椭圆拟合方法中的矩阵问题。

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  • Discuss the means of deducing bidding models by linear regression and curve fit method, and further more, acquire rivals' bidding competitive ratio with fuzzy forecasting technique.

    研究运用线性回归曲线拟合手段推导投标报价模型方法进一步运用模糊预测技术研究获取对手的竞标能力值。

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  • A statistical method is presented to fit coal consumption curve, which considers both history data and current data, and makes the curve closer to real unit.

    煤耗特性曲线拟合上提出加权统计方法综合考虑历史数据当前数据对煤耗特性的影响,使曲线真实反映机组的实际状况。

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  • A simple and useful evaluation method for the single scanning sampling rates of data acquisition system is presented. It utilizes the sinusoid curve fit method.

    介绍了数据采集系统扫描采集速率一种简单实用的精确评价方法正弦波曲线合法。

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  • Welding temperature field was analyzed by using non-linear curve fit method based on experiments.

    建立一种基于试验的非线性曲线的新方法来分析焊接温度

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  • Methods:Power model of non-linear regression was adopted to fit the curve of incidence of malaria, which result is contrast with the same model came from curve estimation method.

    方法疟疾发病率曲线进行非线性过程函数合,与用曲线参数估计的幂函数拟合结果进行对比

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  • In this paper a method is proposed to fit data point with implicit polynomial 2D curves, to make the distance from the data points to the curve within the relatively smaller range.

    本文提出了一种方法隐式多项式曲线拟合数据点,使数据多项式曲线距离控制相对较小的范围内。

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  • Based on the frequency response functions curve fit method, an approximate method for extraction of sloshing model parameters about the problem of nonlinear damping is derived.

    本文液体晃动等效力学模型函数方法基础上,导出一种处理非线性液体晃动阻尼问题的模型参数近似方法。

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  • The noise effect on the motion compensation is discussed. To solve the problem, a new method 'which USES echo goodness-of-fit curve to smooth the centroid range trace and phase trace is proposed.

    讨论了噪声补偿影响,提出了回波数据拟合曲线光滑质心距离轨迹相位轨迹的方法

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  • Thirdly, the least-square method based on relative error is proposed and used to fit the calibration curve of the ultrasonic sensors.

    第三提出了基于相对误差最小二乘法”,将其应用超声波传感器标定的数据拟合

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  • Thirdly, the least-square method based on relative error is proposed and used to fit the calibration curve of the ultrasonic sensors.

    第三提出了基于相对误差最小二乘法”,将其应用超声波传感器标定的数据拟合

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