Application of Trend Extrapolation Method to Spectrum Analysis of Microtremor Signal

机译：趋势外推法在微震信号频谱分析中的应用

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The trend extrapolation method is applied to spectrum analysis of microtremor signal in order to increase the spectral estimation accuracy. First, establish an appropriate extrapolation model based on the existing data series, and then fit correlation functions other than existing data by derivative least squares method, finally perform spectrum analysis using extrapolated correlation functions. Numerical simulations and the experimental results show that good results are achieved no matter correlation functions change slow or rapid, and the extrapolation error is not more than 2.3%.

机译：为了提高频谱估计的准确性，将趋势外推法应用于微震信号的频谱分析。首先，基于现有数据系列建立合适的外推模型，然后通过导数最小二乘法拟合除现有数据外的相关函数，最后使用外推相关函数进行频谱分析。数值模拟和实验结果表明，无论相关函数变化缓慢还是快速，都取得了良好的效果，外推误差不超过2.3％。

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《World congress on computer science and information engineering;CSIE 2011》|2012年|p.653-658|共6页
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Xiaohua Zhou; Tongjian Guo; Jian Jiao;
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正文语种
中图分类计算技术、计算机技术;
关键词
microtremor; spectrum analysis; extrapolation; correlation function; derivative least squares methd;

机译：微震频谱分析;外推相关函数导数最小二乘法;

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Application of Trend Extrapolation Method to Spectrum Analysis of Microtremor Signal

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