物探与化探
物探與化探
물탐여화탐
GEOPHYSICAL AND GEOCHEMICAL EXPLORATION
2014年
5期
1055-1059
,共5页
徐坤%叶高峰%魏文博%郭泽秋
徐坤%葉高峰%魏文博%郭澤鞦
서곤%협고봉%위문박%곽택추
大地电磁测深%EMTF%SSMT2000%Robust%MMT
大地電磁測深%EMTF%SSMT2000%Robust%MMT
대지전자측심%EMTF%SSMT2000%Robust%MMT
magnettotelluric sounding%EMTF%SSMT-2000%Robust%MMT
如何有效地压制各种电磁噪声,提高信噪比,保证大地电磁测深数据质量,始终是大地电磁资料采集与处理的核心问题。为寻求更好的处理效果,使用EMTF系统(单点,远参考以及多站同步MMT)对华北多个宽频MT测点数据进行了处理,并编写Matlab接口来方便地改写处理参数。与SSMT-2000对比,结果表明,EMTF系统在多数情况下可以压制噪声,并获得较好的处理效果,提高数据处理的效率。
如何有效地壓製各種電磁譟聲,提高信譟比,保證大地電磁測深數據質量,始終是大地電磁資料採集與處理的覈心問題。為尋求更好的處理效果,使用EMTF繫統(單點,遠參攷以及多站同步MMT)對華北多箇寬頻MT測點數據進行瞭處理,併編寫Matlab接口來方便地改寫處理參數。與SSMT-2000對比,結果錶明,EMTF繫統在多數情況下可以壓製譟聲,併穫得較好的處理效果,提高數據處理的效率。
여하유효지압제각충전자조성,제고신조비,보증대지전자측심수거질량,시종시대지전자자료채집여처리적핵심문제。위심구경호적처리효과,사용EMTF계통(단점,원삼고이급다참동보MMT)대화북다개관빈MT측점수거진행료처리,병편사Matlab접구래방편지개사처리삼수。여SSMT-2000대비,결과표명,EMTF계통재다수정황하가이압제조성,병획득교호적처리효과,제고수거처리적효솔。
The problems as to how to suppress various kinds of disturbance efficiently, raise signal-to-noise ratio and guarantee the data quality have become the key issues in the collection and handling of MT data. To get more accurate results, the authors introduced the EMTF system ( single, reference and MMT) and used this system to process some of the MT data obtained from North China, and also compiled Matlab program so as to rewrite parameters easily. In comparison with SSMT-2000, the EMTF system can suppress the noise in most cases and greatly improve the efficiency of data processing.