A method for evaluating the optical transfer function (OTF) by the spectrum fitting is also presented.
文中给出了一种利用频谱拟合来准确地求得系统的光学传递函数的方法。
Then the strong spectrum composition is removed from the spectrum signal with the threshold method to eliminate the interference with the continuous spectrum fitting.
然后通过阈值法去除光谱信号中的强谱信息，以排除其对连续谱拟合的影响。
However, the digital random vibration control systems currently based on power spectrum fitting can only generate random vibration exciting signals with Gaussian probability distribution.
然而，目前基于功率谱均衡的数字式随机振动控制系统只能产生高斯分布的随机振动激励信号。
Based on the dispersion equations, 'Downhill Simplex' method is utilized to measure the thickness and optical constants of thin film by fitting the curve of measured transmission spectrum.
借助于不同的色散公式，运用单纯形法拟合测得的透过率光谱曲线，从而获得薄膜的光学常数和厚度。
Numerical examples demonstrate that the artificial ground shaking time histories obtained by the proposed algorithm boast high fitting precisions to the target spectrum.
算例分析结果表明，该算法所得到的人造地震动时程对目标谱具有较高的拟合精度。
In the program, three kinds of nonlinear least-squares fitting methods were supplied for processing the complex positron lifetime spectrum.
为处理复杂的正电子寿命谱，本程序可提供三种非线性最小二乘拟合方法。
Fitting a curve for an experimental energy spectrum of plasma particles with the least square method, a square error sum between the fitted curve and experimental spectrum data is usually minimized.
用最小二乘法拟合等离子体粒子能谱实验数据时，通常使拟合函数与实验能谱数据之间的误差平方和极小化。
A new method which improves the fitting accuracy of artificial time history of ground motion to the target response spectrum by superimposing narrowband time histories in the time domain is proposed.
提出了一种在时域内叠加窄带时程的方法以提高人造地震动时程对目标反应谱的拟合精度。
The paper, through analyzing the forming of the amplitude spectrum of the echo, proposed a new method using quadratic curve fitting for it.
本文针对这种情况，对连续波雷达回波频谱幅度产生原因进行分析，提出了二次曲线拟合频谱幅度来估计加速度的方法。
In this paper, the usability of multiple-exponential function model in fitting the positron annihilation lifetime spectrum is demonstrated.
在本文中推导了多指数函数模型在正电子湮没寿命谱拟合中的可用性。
If accurate fitting formulas of spectrum and coherent function of the fluctuating wind pressure can be obtained, this method possesses great advantage in computing efficiency and accuracy.
指出如果能拟合出脉动风压谱和相干函数的精确公式，该方法在计算效率和计算精度方面均有较大的优势。
The spectrum analysis and sine wave curve fitting are the most common methods used for ADC dynamic performance tests.
谱分析法和正弦拟合法是ADC动态特性测试的两种常用方法。
At the same time, it can get more precise values by putting related coefficient of fitting spectrum and objective function into Genie Algorithm fitness function.
同时，通过引入相应的映射关系，将拟合谱与待分析谱之间的相关系数和目标函数同时映射到了遗传算法的适值函数域中，获得了较高的分析精度。
A 5 line fitting method was established to determine the scaling region of the power spectrum of the log intensity of a laser beam in the turbulent atmosphere.
以5线段拟合法建立了确定湍流大气中激光对数光强起伏频谱的无标度区间的方法。
Besides, at the non-drive-end of the primary shaft, some mechanical fitting in the bearing case were detected loosen, through spectrum-zoom analysis and waveform comparison in the time-domain.
另外，由转频附近细化谱分析及时域波形比较，发现输入轴非电机端轴承座内机件还有径向配合松动故障。
Besides, at the non-drive-end of the primary shaft, some mechanical fitting in the bearing case were detected loosen, through spectrum-zoom analysis and waveform comparison in the time-domain.
另外，由转频附近细化谱分析及时域波形比较，发现输入轴非电机端轴承座内机件还有径向配合松动故障。
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