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An Advanced Phase Angle Measurement Algorithm And Error Analysis  

송영석 (삼성전자)
김재철 (구미1대학 정보통신네트워)
최인규 (삼성전)
박종식 (경북대학교 전자전기컴퓨터학부)
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Abstract
An advanced algorithm for measurement of phase angle between two sinusoidal signals is proposed in this paper. This algorithm uses discrete sample data of two input signals for calculation of phase angle and amplitude. And the key parameters of the measurement algorithm are described by analytical express, so the calculation of phase angle is simplified. In this paper it is proved that harmonic distortion of the input sinusoidal signals does not affect the measurement value of phase angle by using the proposed algorithm when a whole cycle is sampled. And measurement error by the white Gaussian noise is very small compared by other algorithms.
Keywords
measurement of phase angle; harmonic distortion; white Gaussian noise; analytical express;
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