极低频探地工程数据分析中的窗函数选择
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摘要
"极低频探地(WEM)工程"是国家发展和改革委员会批准的"十一五"国家重大科学技术基础设施建设项目之一,用于资源探测和地震预测及其他前沿科学研究。文章对工程数据分析中所使用的窗函数进行研究,深入分析不同窗型对频谱泄露的影响,给出相应的Matlab仿真结果,提出适用于极低频探地工程项目数据分析的窗型选择。
"Wireless Electro-Magnetic(WEM) project" is a national major science and technology infrastructure construction project of the 11 th five-year plan approved by the national development and reform commission,for research resources exploration and earthquake prediction and other frontier science.The window function for the engineering data analysis was studied.The spectrum leakage of the different type of window functions is analyzed thoroughly and the corresponding Matlab simulation results are obtained.The selection of window function for analysis WEM project engineering data is put forward.
"Wireless Electro-Magnetic(WEM) project" is a national major science and technology infrastructure construction project of the 11 th five-year plan approved by the national development and reform commission,for research resources exploration and earthquake prediction and other frontier science.The window function for the engineering data analysis was studied.The spectrum leakage of the different type of window functions is analyzed thoroughly and the corresponding Matlab simulation results are obtained.The selection of window function for analysis WEM project engineering data is put forward.
引文
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吴宝峰,闫峰.VC++与Matlab混合编程技术在数字地震信号处理软件中的应用[J].地震地磁观测与研究,2009,30(1)115—120.
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赵国泽,等.地震监测人工源极低频电磁技术(CSELF)新实验[J].地球物理学报,2010,53(3):279—486.
卓贤军,陆建勋,等.极低频探地(WEM)工程[J].中国工程科学,2011,13(9):42—50.
吴宝峰,闫峰.VC++与Matlab混合编程技术在数字地震信号处理软件中的应用[J].地震地磁观测与研究,2009,30(1)115—120.
张贤达.现代信号处理[M].北京:清华大学出版社,2002.
赵国泽,等.地震监测人工源极低频电磁技术(CSELF)新实验[J].地球物理学报,2010,53(3):279—486.
卓贤军,陆建勋,等.极低频探地(WEM)工程[J].中国工程科学,2011,13(9):42—50.
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