只要把一个波形作傅立叶分解就行了。就是把波形分解成一系列时间的三角函数。这些三角函数的频率就是本征频率。
misc. eigen frequency
The development of a new approach for accurately obtaining the eigen frequency of the fiber coil under test. The method is based on the modulation-demodulation principle of the fiber gyroscope.
在构建检测系统过程中,针对光纤环本征频率不易精确测量的问题,从光纤陀螺的调制原理出发提出了一种新的基于对称方波调制的测试光纤环本征频率的方法。
参考来源 - 光纤陀螺光纤环对称性检测系统的实现·2,447,543篇论文数据，部分数据来源于NoteExpress
采用矢量有限元方法计算了任意轴对称谐振腔高阶模的本征频率。
Eigenfrequencies of high order modes in the axial-symmetric cavities are computed with a vector finite element method.
计算结果还表明，比压加大时，本征频率的实部与离子反磁漂移频率有很大的偏离。
The results also show that the increase in plasma beta-value leads to a departure of the real part of the eigenfrequency from...
根据本征频率计算了石英音叉的动态等效电路参数，计算值在实测值的离散范围内。
Based on the inherent frequencies the dynamic equivalent circuit parameters are calculated and the result is within the discrete range of experimental values.
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