fitting polynomial meaning in English
多顶式拟合
选配多项式
Examples
- The paper refers some former experience in the fitted polynomial " s form , and makes certain modifications according to the features of the gun , that provides certain references to act on the following development
在拟合多项式系数的形式上，借鉴了以往的经验，并针对本炮种的特点作了一定的修改，为以后的发展提供了一定的借鉴作用。 - A time scale of the sample sn has been reconstructed by a polynomial fitting with 9 dated ages and further tested by annual band counting results . in general , the fitting polynomial line is consistent with the annual band growth rate except for that the bottom part of the stalagmite ( a height between 196 to 255mm from the top )
石笋sn通过9个~ ( 230 ) th年龄的多项式拟合建立年代序列，利用清晰可数年层段检验表明，除底部( > 196mm )外其它时段基本吻合； bf1结合~ ( 230 ) th年龄和年层计数法定年，年层计数结果表明定年在测年误差范围之内。 - As the dispersive influence can be easily described by a frequency transfer function , the feasibility of measuring the function with the g - s algorithm is researched numerically in the next part . from the results of simulation with fibers with different length and pulses with different width , it ’ s known that the convergence of the algorithm is related to the difference between the input and output pulse . then , the influence of attenuation and self phase modulation of fiber is discussed , and the influence of the delay phenomenon and fitted polynomial is also analyzed
通过对不同光纤长度和不同输入脉冲脉宽的计算,得到了g - s算法的收敛性与输入波形和输出波形之间的关系;在此基础上,通过对光纤损耗、自相位调制的模拟,分析了损耗和自相位调制对光纤传递函数测量的影响;本文还分析了波形测量中的拖尾现象和多项式拟合对测量的影响,进而,对利用g - s算法进行单模光纤传递函数测量的可行性进行了阐述。 - Secondly , spfm ( sliding polynomial fitting method ) was discussed and the arithmetic has been compared with pfm ( polynomial fitting method ) . meanwhile , the model was corrected , and the parameters of arithmetic - - system sampling frequency , the length of sliding window and the exponent of fitting polynomial - - have been optimized
并在此基础上讨论了滑动窗多项式拟合预测算法（ spfm ） ，对该算法与普通的多项式外推预测进行了比较，对模型进行了适应性修正，并对算法的参数：系统采样频率、滑动窗大小、拟合多项式指数进行了优化。 - First . adjust the fiber to get the interferogram , use the four - step phase shifting method control the change of phase , achieve phase shifting . in data processing , take the pzt ' linear influence into account , calibrae the pzt . unwrapping the phase , gain the continuity , get the actual phase . analyzing the data with zernike orthogonal methord , fit polynomials that are not orthogonal over the data points , through visual c + + program , obtain polynomial parameters . calculate the shape of the surface , compare the result with zygo , then achieve the better experimental result
首先，经光纤耦合输出调整得到干涉图，采用四步相移方法，控制干涉图位相变化，实现相移；数据处理过程中，考虑压电陶瓷的非线性影响，进行标定；对位相进行模式展开连续性处理，得到实际位相；用zernike多项式正交化方法分析，在离散点上处理数据，经visualc + +程序设计，得到多项式系数，计算出面形分布，同zygo所得结果进行比较。