摘要
本方法是波数域磁异常化极的正则化方法,能增强化极算子的稳定性,同时压制高波数干扰。对低纬度地区及干扰严重的中低纬度地区航磁异常化极,能压制磁南北方向的条带状干扰,获得稳定结果。对含有较高噪声水平的高精度地面磁测△T异常化极,不论纬度高低,都能较大程度地压低噪声水平,得到高质量的化极结果。
As a regularization technique for reduction to the pole of wavenmber dcmainmagnetic anomalies, the method can enhance the stableness of the operator of the raductionto the pole, and suppress the interference of high wavenumber. As for the reduction to thepole of aeromagnetic anomalies in low latitude area and middle-low latitude area with graveinterference,the method can suppress banded magnetic interference in north-south directionand produce stable results. In the case of redoction to the pole for △T anomnalies of highprecision ground magnetic survey with effective high noise level, it can considerably suppressthe noise level and gain high-quality reduction to the pole results,regardless of the latitude.
出处
《物探与化探》
CAS
CSCD
1995年第3期200-211,217,共13页
Geophysical and Geochemical Exploration
关键词
波数域
滤波化极
最小均方差
磁法勘探
wavenumber domain, reduction to the pole, regularization, interference.