The result shows that nonlinearity of the system induces the fractional harmonic which roots in the noise.
说明系统运动非线性产生的分数次谐波，是诱发噪声的直接原因。
Finally, an improved algorithm for fractional harmonic analysis is used to reduce the leakage, the result of the simulation shows it can heighten the precision of the measure of the parameter.
最后，对于非整数次谐波的测量用改进算法来减少频谱泄漏，仿真结果表明，改进算法能较大的提高参数测量的精度。
It is well-known that fractional integral operator is one of the important operators in harmonic analysis with background of partial differential equations.
众所周知，分数次积分算子是调和分析中以偏微分方程为背景的一种重要算子。
So it can be applied to fractional-harmonics analysis more preferably and therefore improve the resolution capability of weak harmonic component and accuracy of harmonic analysis.
因而，新窗函数谐波分析方法特别适用于分数次谐波分析，且能提高弱谐波信号的分辨能力和准确度。
So it can be applied to fractional-harmonics analysis more preferably and therefore improve the resolution capability of weak harmonic component and accuracy of harmonic analysis.
因而，新窗函数谐波分析方法特别适用于分数次谐波分析，且能提高弱谐波信号的分辨能力和准确度。
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