| FIR滤波和FFT在激发极化法中的应用 |
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| 引用本文： | 薛品,李志华,沈茂丁,徐华文.FIR滤波和FFT在激发极化法中的应用[J].科学技术与工程,2015,15(29). |
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| 作者姓名： | 薛品 李志华 沈茂丁 徐华文 |
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| 作者单位： | 中国地质大学(武汉)自动化学院,中国地质大学(武汉)自动化学院,中国石油天然气管道工程有限公司,中国石油天然气管道工程有限公司 |
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| 基金项目： | 中国石油管道工程有限公司“非开挖穿越勘查技术研究和穿越适应性分析”项目(20142A01)。 |
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| 摘 要： | 在水文工程地质和物探找矿等领域,由于二次场电压受到多种噪声干扰,常规的硬件补偿电路或滤波电路有时无法达到精度和实时处理的要求,甚至增加系统设计的难度和成本。为了解决这些问题,提出并实现将FIR滤波和FFT应用在需要通过测量二次场电压测明某一区域内视电阻率或视幅频率的分布式激发极化法中。通过Matlab仿真和水槽模型试验模拟和验证了FIR滤波和FFT在激发极化法中的可行性和有效性。
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| 关 键 词： | 激发极化法 FIR滤波 FFT 视电阻率 视幅频率 |
| 收稿时间： | 2015/6/16 0:00:00 |
| 修稿时间： | 2015/6/16 0:00:00 |
The Application of FIR Filter and FFT in Induced Polarization Method |
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| XUE Pin,SHEN Mao-ding and XU Hua-wen.The Application of FIR Filter and FFT in Induced Polarization Method[J].Science Technology and Engineering,2015,15(29). |
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| Authors: | XUE Pin SHEN Mao-ding and XU Hua-wen |
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| Institution: | China Petroleum Pipeline Engineering Corporation,China Petroleum Pipeline Engineering Corporation |
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| Abstract: | In hydrological engineering geology and geophysical prospecting ,and other fields, due to the secondary voltage interfered by a variety of noise, however, regular hardware compensation circuit or filter circuit ,sometimes, cannot suit the requirements of precision and real-time processing, even increase the difficulty of system design and cost. In order to solve these problems, the FIR filter and FFT are put forward in the distributed induced polarization method when need to measure the secondary voltage to know apparent resistivity in certain area. Through Matlab simulation and sink model test and verify the feasibility and effectiveness of the FIR filter and FFT in induced polarization method. |
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| Keywords: | Induced polarization method FIR filter FFT Apparent resistivity Apparent amplitude frequency |
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