| 小波比值算法研究与应用实例 |
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| 引用本文： | 王运生,王家映,冷元宝.小波比值算法研究与应用实例[J].工程地球物理学报,2004,1(5):404-406. |
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| 作者姓名： | 王运生 王家映 冷元宝 |
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| 作者单位： | 中国地质大学地球物理与空间信息学院,武汉,430074;黄河水利委员会,郑州,450003;中国地质大学地球物理与空间信息学院,武汉,430074 |
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| 摘 要： | 在应用反射波法对异常体进行探测过程中，反射信号通常表现为高频但其能量十分微弱。本文提出的小波比值算法，其基本原理是计算信号中的高频能量（一层或多层）与总能量之比，分析其变化规律可以有效地从低频高噪声背景中识别反射信号。最后通过应用实例进一步验证这一方法的先进性和实用性。
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| 关 键 词： | 小波比值 信号识别 反射波法 |
| 文章编号： | 1672-7940（2004）05-0404-03 |
| 收稿时间： | 2004-10-04 |
| 修稿时间： | 2004年10月4日 |
WAVELET RATIO ALGORITHM AND ITS APPLICATION RESEARCH |
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| WANG Yun-sheng,WANG Jia-ying,LENG Yuan-bao.WAVELET RATIO ALGORITHM AND ITS APPLICATION RESEARCH[J].Chinese Journal of Engineering Geophysics,2004,1(5):404-406. |
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| Authors: | WANG Yun-sheng WANG Jia-ying LENG Yuan-bao |
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| Abstract: | When detecting for abnormity with the reflected wave method, echo signal is high frequent, and its energy is very weak. The article put forward the method of wavelet ratio algorithm, whose basic principle is computing the ratio of high-frequency energy (one scale or more) and total energy of signal, by analyzing the change regulation can identify echo signal from low-frequency background with strong noise effectively. At last the correctness and practicality of the method have been proved by practical examples. |
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| Keywords: | ratio signal identification reflected wave method |
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