地球物理学进展 ›› 2018, Vol. 33 ›› Issue (2): 823-829.doi: 10.6038/pg2018BB0424

• 应用地球物理学Ⅱ(海洋、工程、环境、仪器等) • 上一篇    下一篇

微动数据平稳性检验方法的适用性分析

李传金1,2(),杜亚楠3,4,游志伟3,4,凌甦群5   

  1. 1. 福建省土木工程新技术与信息化重点实验室,福州 350118
    2. 福建工程学院,福州 350118
    3. 中国科学院地质与地球物理研究所,中国科学院页岩气与地质工程重点实验室,北京 100029
    4. 中国科学院大学,北京 100049
    5. 日本地学数据分析研究所,东京 184-0012,日本
  • 收稿日期:2017-09-11 修回日期:2018-01-12 出版日期:2018-04-20 发布日期:2018-07-18
  • 基金资助:
    福建省教育厅中青年教师教育科研项目(JA15334);上海济南等典型城市地下空间开发利用综合地质调查(DD20179611)

Applicability analysis of stationarity test methods in microtremor

Chuan-jin LI1,2(),Ya-nan DU3,4,Zhi-wei YOU3,4,Su-qun LIN5   

  1. 1. Fujian Provincial Key Laboratory of Advanced Technology and Informatization in Civil Engineering, Fuzhou 350118, China
    2. Fujian University of Technology, Fuzhou 350118, China
    3. Key Laboratory of Shale Gas and Geo engineering, CAS, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    4. University of Chinese Academy of Sciences, Beijing 100049, China
    5. Geo-Analysis Institute Company Limited, Tokyo 184-0012, Japan
  • Received:2017-09-11 Revised:2018-01-12 Online:2018-04-20 Published:2018-07-18

摘要:

微动勘查方法基于微动数据满足平稳性的理论假设.检验数据平稳性的方法较多,各种方法有各自的适用性.本文研究了图检验法、轮次检验、逆序数检验、单位根检验、Space Time-Index等方法在微动数据平稳性检验中的适用性.测试了两组微动数据,一组没有受到干扰,另一组受到过往车辆的干扰.测试结果表明:图检验法不能保证准确性;单位根检验出现误判;轮次检验和逆序数检验计算简单,效率高,但分段数和子段长度不合理时出现误判;Space Time-Index方法准确性高,但计算时间长,效率低.因此,准确判别微动数据的平稳性不宜用图检验法和单位根检验,可以根据微动数据的数量用轮次检验、逆序数检验或Space Time-Index方法.

关键词: 微动数据, 平稳性检验, 轮次检验, 逆序数检验, 单位根检验, Space Time-Index

Abstract:

Microtremor survey method is based on the theoretical hypothesis that the data satisfies the stationarity. There are many methods to test data stationarity, and different methods have their own applicability. To test microtremor stationarity, we study the applicability of several methods such as the graph test, Runs Test(RT), Reverse Arrangements Test(RA), Unite Root test, Space Time-Index (STI).Two microtremor data were selected, one of which was not disturbed, and the other was disturbed by passing vehicles. The test results are as follows: the graph test does not guarantee accuracy; the result of Unit Root test is spurious; the RT and RA is simple and efficient, but when the segment number and the sub segment length are not reasonable, the results are spurious; STI is accurate but inefficient. Therefore, the graph test and Unite Root test can not be used to accurately test microtremor stationarity, but the RT, RA or STI can be chosen according to the size of microtremor.

Key words: microtremor, stationarity test, runs test, reverse arrangements test, unite root test, Space Time-Index

中图分类号: