相位 Phase (waves)
（重定向自Phase compensation）
相位（phase），是描述信号波形变化的度量，通常以度（角度）作为单位，也称作相角。当信号波形以周期的方式变化，波形循环一周即为360º。常应用在科学领域，如数学、物理学、电学等。
Phase compensation
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Phase (waves) 相位
（重定向自Phase compensation）
Phase in sinusoidal functions or in waves has two different, but closely related, meanings. One is the initial angle of a sinusoidal function at its origin and is sometimes called phase offset or phase difference. Another usage is the fraction of the wave cycle that has elapsed relative to the origin.
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