The effect of the quantization of the fringe intensity on the phase error in phase shifting measurement is formulated.
对相位移测量技术中的条纹强度量化所引起的相位误差进行了定量研究。
The phase detecting error caused by local oscillator frequency drift and non-synchronization of measurement signal and gate signal is eliminated and the measurement speed is improved at the same time.
该方法可以有效的消除因本振信号频率漂移及闸门信号与被测信号的非同步引起的测相误差，同时提高了测量速度。
A high performance measurement of initial phase via a Dual Interpolated DFT method based on error information is presented.
提出了一种基于误差知识的二重插值DFT方法用于高精度时钟初相测量。
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