吉林大学学报(地球科学版) ›› 2021, Vol. 51 ›› Issue (6): 1872-1880.doi: 10.13278/j.cnki.jjuese.20200195
汪轩1, 沈金松1, 王志刚2, 孙卫斌2
Wang Xuan1, Shen Jinsong1, Wang Zhigang2, Sun Weibin2
摘要: 我国对海洋可控源电磁勘探方法的研究起步较晚,目前海洋采集数据的处理流程较为单一。在经典的数据处理流程中,仍缺乏针对由存储设备读写、船速和长线源源距变化等造成的畸变电磁响应的数据处理方法。本文针对存储设备运行造成的规则干扰提出一种基于功率谱分析的自动压制方法;对于船速和长线源源距变化的干扰建立了分时窗畸变校正流程;最后,结合合成孔径源技术进一步增强了有效信号的强度。实测数据处理结果表明,文中提出的畸变校正与信号增强方法,在提高电磁数据信噪比的同时,增强了来自海底地层的有效信号幅度。
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