The concept of sparse symbolic time series analysis was brought in and the method and procedure for implementation of the analysis was proposed.
引入稀疏混沌时间短序列概念，提出了稀疏符号时间序列分析方法与实现流程。
The application of this method makes the research procedure of threshold simple and the analysis time of threshold less, also stronger operative.
该方法的运用，简化了阀值研究程序，节省了阀值分析时间，具有较强的操作性。
The ground motion time function is a kind of time serial signals, which is a highly varying and nonstationary randow procedure and fit for wavelet analysis.
地震动是由于地震引起的地面运动，其时间历程函数表现为具有突变特征的非平稳随机过程，因此更适于利用小波变换进行频谱分析。
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