PRMF relative phase spectrum IP method with PRMF signal as excitation has the same advantage of relative phase IP method, and offer rich information for the discrimination of anomaly source.
利用伪随机多频信号作为场源的多频相对相位谱观测法拥有相对相位观测法的优点，同时为异常源的区分提供丰富的信息。
Based on the layered phase grating and revolving field discrimination, a laser Doppler vibrometer system has been studied which provides a potential method of velocity measurement.
本文借助于层栅理论和琼斯矢量综述其机理方面的理论与实验研究工作，并举例说明基于旋转场辨向各种测试手段中信号叠加方案的一般分析方法。
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