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理论分析和计算机模拟考证结果证明,可以利用互功率谱密度函数和传递函数所包含的相位信息来测量两相关动态物理量信号在指定频率成分上的相位差。本文还就相位测量中仪器系统的相移标定进行讨论。
Theoretical analysis and computer simulation results show that the phase difference between the two related dynamic physical signals in the specified frequency components can be measured by using the phase information contained in the cross-power spectral density function and the transfer function. This article also discusses the phase-shift calibration of instrument systems in phase measurement.