【作者】 郭泉； 杨选辉；

【Author】 Guo Quan;Yang Xuanhui;Institute of Crustal Dynamics,Chinese Earthquake administration;

【机构】 中国地震局地壳应力研究所；

【摘要】 以川滇地震次声波监测网络的西昌、攀枝花、丽江等台站,监测到了2014年10月至2014年12月在西昌卫星发射中心进行的多次公开火箭发射过程中的次声波信号,通过对信号波形、时频、波源定位的分析,对信号的波形和时频特征进行了初步研究,定位结果显示该次声波源是运动源,其信号峰值所对应的波源位于发射地以东的位置,讨论其可能原因主要来自于大气传播以及地形因素。该观测研究验证了川滇次声监测网络的有效性、可靠性,为大气运动次声源的特征和定位提供了观测依据和方法。更多还原

【Abstract】 The infrasound signals which were probably generated by open cargo rocket launchings in Xichang Satellite Launch Center from Oct.2014 to Dec.2014,were observed by Xichang,Panzhihua,Lijiang infrasound stations of Chuan—Dian infrasound network.Signal character by waveform and time—frequency analysis is studied and the signal sources were located in east of launch center.this phenomenon was probably attributed by complex infrasound propagation in atmosphere and topographic factors.This study verified effectiveness and reliability of infrasound network and location algorithm,also provided observation data and method for movement infrasound source studying.更多还原