中国海洋大学学报（自然科学版）2011，Vol.41Issue(1)：146-150,5.
基于频率差异的多次波识别
Multiple Identification Based upon Frequency Differences
摘要
Abstract
Based upon a simplified marine seismic model with different medium quality factors along the different wave trajectories, this paper theoretically and numerically proves that, as the travel time increasing, the dominant frequency of primary wave will be much lower than that of reverberation within a same travel time window. The paper presents a new approach, the Time-Frequency Identification Mode, in which a wave is recognized to be a multiple not only by the travel time but also the dominant frequency of the signal. Real seismic data processing examples demonstrate that comparing to the traditional Time Identification Mode, using the Time-Frequency Identification Mode can suppress the multiple effectively and meanwhile protect the basic characteristics of the primary wave.关键词
海水鸣震/频率差异/品质因子/多次波识别Key words
reverberation/ frequency differences/ quality factor/ multiple identification分类
天文与地球科学引用本文复制引用
潘军,王修田..基于频率差异的多次波识别[J].中国海洋大学学报（自然科学版）,2011,41(1):146-150,5.基金项目
国家科技重大专项(2008ZX05025-001-006)资助 （2008ZX05025-001-006）
