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The noise conversion method for oscillatory systems

机译:振荡系统的噪声转换方法

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摘要

The paper addresses a method for calculating the amplitude and phase power spectral density (PSD) functions of an oscillatory system (resonator, oscillator, bandpass filter, selective circuit, etc.) via the PSDs of its intrinsic noise sources and relevant transformation coefficients. A systematic description of the method is given for the scalar and vector noises. As an illustration, the noise transformation coefficients are derived for a piezoelectric series branch with fluctuating motional inductance, capacity, and losses, in which static capacity is disregarded. We then clarify the rules regarding the shaping of either PSD function. The importance of this method resides in the fact that it enables us to study particular finite ranges of the PSD function without using differential equations.
机译:本文提出了一种通过其固有噪声源和相关变换系数的PSD计算振荡系统(谐振器,振荡器,带通滤波器,选择电路等)的幅度和相位功率谱密度(PSD)函数的方法。对标量和矢量噪声给出了该方法的系统描述。作为说明,推导了一个具有动态电感,电容和损耗波动的压电串联支路的噪声变换系数,其中静电容被忽略。然后,我们阐明有关任一PSD函数的整形的规则。该方法的重要性在于,它使我们无需使用微分方程就可以研究PSD函数的特定有限范围。

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