| 摘要: |
| 提出一种适用于滑动扫描的纯相移滤波方法。通过对记录或者统计得到的可控震源力信号进行分解，得到各 次谐波分fi,然后通过对地胰道记录按照各次谐波的相移埴进行纯相移处理?对相移后的结果，设计合适的滤波 器，消除谐波。结果表明,所提方法稳定、高效、易于实现，只需要知道吋控震源力信号和每一炮的初至时间,就可以 在滑动扫描id录中有效消除谐波十扰，适用于对野外采集数据进行实时处理。 |
| 关键词: 地震资料处理 滑动扫描 谐波畸变 纯相移 |
| DOI：10.3969/j.issn.1673-5005.2012.02.013 |
| 分类号:P 315.31 |
| 基金项目:国家自然科学箪金项目山东省自然科学基金项目(ZR2011DQ016) |
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| Method of harmonic noise elimination in slip sweep data |
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HUANG Jian-ping1,ZHOU Xue-feng2,GUO Jun2,WANG Fang-chao3,SHI Fei2,LI Zhen-chun1
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(1. School of Georesources in China University of Petroleum, Qingdao 266580, China;2. Tianjin Branch, Research Institute of Petroleum Exploration & Development in CNOOC Limited Company,Tianjin 300451, China;3. CNOOC EnerTech-Supervision & Technology Company, Tianjin 300451，China)
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| Abstract: |
| A new method of eliminating harmonics for slip sweep recording was presented using the pure phase shift filter. The phase spectrum of each harmonic components from the ground force obtained by recording or statistics was computed. Tlien the procedure of pure phase shift operation was taken and a favorable filter was designed to eliminate the harmonica. The results show that this method is robust，fast and can be easily implemented. Using only the ground force and the start times of the sweeps, it can remove the harmonics in slip sweep data effectively，and it is applicable for real-time processing. |
| Key words: seismic data processing slip sweep harmonic distortion pure phase-shift |
