超低频地磁信号谱分析系统研究与实现
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摘要
针对超低频地磁信号谱的特点 ,利用MATLAB的数据显示与分析功能 ,完成了超低频地磁信号谱分析系统 ,系统共分为数据文件格式化、原始数据显示、数据谱分析三大模块 ,能够对采集到的数据按指定条件进行批量格式化并显示为二维分布图 ,同时可以对数据进行傅里叶变换或小波分析 ,也可以观察其维格纳分布图 ,实现了与国外同类软件相同的功能 ;采用本软件 ,对安阳信号采集站 1 980年 5月 1 2日的数据进行了处理 ,达到了预期效果。本系统具有自有知识产权 ,可有效提高地磁研究工作者的研究效率。
Thousands of geomagnetic signals have been collected by 9 sites distributed in different provinces in China. Whether these vast data can be processed effectively by advanced technology is a fairly significant key to determine the quality of the research. The toolkit, which has taken full advantage of the features in data analysis and display in MATLAB, can be divided into 3 sections, called File Formation, Original signals display and signals spectrum analysis. What is more, it also makes it available for user to format lists of files automatically in term of the selected options previously, display the plot of the data, Wavelet or Wignar distribution. Thus, the toolkit can help to enhance the productivity of the geomagnetic research effectively, providing useful information to the scientists.
Thousands of geomagnetic signals have been collected by 9 sites distributed in different provinces in China. Whether these vast data can be processed effectively by advanced technology is a fairly significant key to determine the quality of the research. The toolkit, which has taken full advantage of the features in data analysis and display in MATLAB, can be divided into 3 sections, called File Formation, Original signals display and signals spectrum analysis. What is more, it also makes it available for user to format lists of files automatically in term of the selected options previously, display the plot of the data, Wavelet or Wignar distribution. Thus, the toolkit can help to enhance the productivity of the geomagnetic research effectively, providing useful information to the scientists.
引文
[1] 逯燕玲.基于面向对象模型的管理软件系统开发平台研究[J].北京联合大学学报,2001,15(4):74-77.
[2] 逯燕玲,杨煦.以信息系统开发实习强化计算机应用[J].北京联合大学学报,2001,15(4):86-86.
[3] 卢孟夏.应用小波变换进行信号消噪处理[J].北京联合大学学报,1998,12(1):82-86.
[4] 王寰文.台站资料在我国地磁学基础研究中的应用[J].国际地震动态,2003,(1):10-14.
[5] 刘向红,赵正予,谢树果.基于小波理论的地磁脉动信号的消噪处理[J].武汉大学学报(自然科学版),2000,46(5):629-632.
[2] 逯燕玲,杨煦.以信息系统开发实习强化计算机应用[J].北京联合大学学报,2001,15(4):86-86.
[3] 卢孟夏.应用小波变换进行信号消噪处理[J].北京联合大学学报,1998,12(1):82-86.
[4] 王寰文.台站资料在我国地磁学基础研究中的应用[J].国际地震动态,2003,(1):10-14.
[5] 刘向红,赵正予,谢树果.基于小波理论的地磁脉动信号的消噪处理[J].武汉大学学报(自然科学版),2000,46(5):629-632.
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