| 频率域电法的新进展 |
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| 引用本文： | 何继善.频率域电法的新进展[J].地球物理学进展,2007,22(4):1250-1254. |
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| 作者姓名： | 何继善 |
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| 作者单位： | 中南大学, 长沙 410083 |
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| 摘 要： | 本文回顾了电法勘探的发展历程，分析、比较了电法勘探发展的各个阶段、各种频率域电法的优点和不足，着重介绍和论述了an序列伪随机电法具有主要频率成分丰富，各主频信号强度基本相等不随频率增高而减弱，频率间隔对数均匀、分布合理，覆盖的频率范围宽等一系列优点.不失为一种值得推广应用的新型频率域电法.
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| 关 键 词： | 频率域 电法 新进展 an序列伪随机电法 |
| 文章编号： | I004-2903（2007）04-1250-05 |
| 收稿时间： | 2007-03-10 |
| 修稿时间： | 2007-06-20 |
The new development of frequency domain electro prospecting |
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| HE Ji-shan.The new development of frequency domain electro prospecting[J].Progress in Geophysics,2007,22(4):1250-1254. |
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| Authors: | HE Ji-shan |
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| Institution: | Central South University, Changsha 410083,China |
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| Abstract: | The frequency domain electro-prospecting methods of various kinds are analyzed and compared.Their merits and weaknesses are pointed out also.The an series pseudo-random signal electro-prospecting method(an SPSEM) to be emphatically introduced and discussed has a series of advantages,such as it has a lot of main frequency components,the signal amplitudes of the main frequencies are basically equal,their amplitudes aren't weakened when the frequency is gone up,the intervals between the adjoining main frequencies logarithmically even and reasonable,the frequency band covered by these main frequencies is very broad,etc.The an SPSEM is a new frequency domain electro-prospecting method,it is worth to be extended and applied. |
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| Keywords: | frequency domain electro-prospecting method new development a^n SPSEM |
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