OALib Journal期刊
ISSN: 2333-9721
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从化极算法误差方程看各种波数域低纬度化极方法
Keywords: 化极算法误差方程,波数域,压制类化极方法,反演类化极方法,偏移抽样类化极方法
Abstract:
?本文以化极算法误差方程为理论工具揭示了三类波数域低纬度化极方法各自的误差规律,并据此对三类方法进行了化极效果评估、功能定位和应用条件界定。压制类化极方法可以且只能用于低纬度磁异常定性解释;波数域反演化极法可以用于低纬度磁异常定量解释,其条件是数据完整覆盖异常,数据边界尽量简单;波数域偏移抽样化极方法也可以用于低纬度磁异常定量解释,其条件除数据完整覆盖异常,还要求数据精度高于0.2%,且磁偏角方向的数据网格规模不大于64×64。文中应用化极算法误差方程对波数域反演化极方法误差规律的揭示,是对该方法的重要理论补充,使之更加严谨和完善。本文导出的v轴分离法则丰富和发展了偏移抽样类化极方法。
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