Fourier Transform, the most classical signal processing analysis method, is ideal for the calculation of magnitude of sinusoidal signals in their steady state.
作为最经典的信号处理手段的傅立叶分析，对被分析信号的幅值变化相当的敏感。
Aspects in particular need of attention include data transmission by countries, assurance of data quality, and the processing and analysis of data, including timely signal detection and action.
尤其需要关注的方面包括各国的资料传输、资料质量的保证以及资料的处理和分析，并包括及时发现疫苗安全问题的“信号”和采取行动。
As a new technique of signal processing, wavelet analysis has excellent characteristics of time frequency localization and is suitable for analyzing time varying or transient signals.
作为一种日益获得广泛应用的信号处理新技术，小波分析具有良好的时频局域化特性，适应于时变和瞬变信号的分析。
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