双频组合波与近区频域电磁测深  

DUAL-FREQUENCY COMBINATION WAVE AND FREQUENCY ELECTROMAGNETIC SOUNDING IN NEAR-FIELD ZONE

作　　者：苏发[1] 何继善[1] 

机构地区：[1]西安交通大学电信工程学院,中南工业大学

出　　处：《地球物理学进展》1996年第3期97-103,共7页Progress in Geophysics

摘　　要：由于近区场的复杂性及背景场的干扰，多年来近区频域电磁测深一直是地球物理领域一个悬而未决的问题，并成为频域电磁测深发展的障碍。本文通过分析近区场的分布特征，并将双频组合波理论引入，提出了一种适于近区频域测深的组合波测深方案。它具有有效地压制背景场、突出地电异常信息的功能，为在近区实施频域电磁测深开辟了一条新途径。For many years, the frequency electromagnetic sounding in near-field zone has been an outstanding probem in applied geophysics because of the complexity of the near Source field and the interference of background field, which undoubtedly hinder the development of the frequency Sounding. By analysing the distribution pattern of the near Source field and introducing the dual-frequency combination wave theory, a new method of dual-frequency electromagnetic Sounding of combination wave for near-field zone is advanced in the paper. The method can Suppress the interference of background field and highligt the anomalous information.It provides a new way to carry out frequency sounding in near-field zone.

关 键 词：双频组合波 频域电磁测深 电磁测深 

分 类 号：P631.322[天文地球—地质矿产勘探]