大地电磁走向角确定及其对mt响应函数的影响
Keywords: 大地电磁,走向角,阻抗张量,倾子
Abstract:
?本文基于目前大地电磁测深勘探中确定mt走向的几种常用方法,以实测edi格式的功率谱文件计算出走向角,分析和讨论不同方法所确定的走向角差异;通过实例计算,定量地反映走向角对计算视电阻率、相位等其他mt响应函数的影响程度。结果表明,在一般情况下,走向角对视电阻率、相位等mt响应函数有较大影响;当确定的走向角在某一范围时,不同方法获得的走向角对视电阻率、相位等影响较小。
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