使用谐波相位成像来分析区域性左室功能。
Regional LV function was analyzed with the use of harmonic phase imaging.
谐波相位参考在频域上为梳状波而在时域上为很窄的脉冲序列。
Generally, the harmonic phase reference circuit is a comb generator in frequency domain and a pulse generator in time domain.
根据研究“电弧炉对电网的影响机理及对策”时相位检测精度的问题，提出了提高谐波相位检测精度的解决方法。
Based on the study of the arc harmonics measurement, a method called divided-error is introduced to improve the phase measurement accuracy in this paper.
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