【摘要】 宽频地震仪及由其组成的宽频地震台网、流动式数字地震台阵是一种探测地球内部构造新技术,在研究方位各向异性、壳幔速度结构、天然地震观测等方面有广泛用途,是进行天然地震波速度成像和利用地震噪声成像探测地下精细结构的必需设备.本文主要介绍了宽频地震仪的特点和国内外的发展现状;详细总结了国外较成熟宽频地震仪的性能指标;分析了宽频地震仪适用于背景噪声成像法的原因;列举了其在背景噪声成像中的实际应用;简述了其结合接收函数法、波形反演法、层析成像法的应用;最后总结了宽频地震仪不足之处,并展望了其未来发展方向.更多还原

【Abstract】 Broadband seismographs and broadband seismic network,portable seismic array composed by them is a new tech to detect the internal structure of the earth,which has a wide range of applications,such as in getting azimuthal anisotropy,researching the velocity structure of crustal and mantle and making natural earthquake observation and so on.The broadband seismograph is essential equipment when we use the technology such as natural seismic wave velocity tomography and ambient noise tomography to detect the accurate underground structure.This paper mainly introduces the characters of broadband seismographs and the process of them in domestic and overseas and summarizes the specifications of relative mature broadband seismographs overseas.Then it analyses the reason why the broadband seismograph is suitable for ambient noise,lists its applications in ambient noise tomography and gives a brief description about its applications when it combined with receiving function,waveform inversion,and tomography.In the end,this paper summarizes the shortages of broadband seismograph and prospects its future development direction.更多还原