心电信号的预处理和波形检测是心电自动分析诊断系统的关键问题，直接决定着诊断与治疗心脏病的效果。
Signal preprocessing and waveforms detection for ECG are the key of the ECG monitoring diagnosis system for diagnosis and therapy.
在桩身的动态无损质量检测中，关键问题是根据波形分析判断桩中各种缺陷的准确位置和程度。
In dynamic nondestructive inspection for pile quality, it is a key problem to determine exact location and degree of various defects according to wave analysis.
对检测信号波形特征的分析可作为缺陷定量判断的可行途径。
Therefore, it is a feasible way to analyze the wave features of the test signals for quantitative judgement of defects.
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