| 欧阳湛,李达为,罗先中.应用于激电勘探的m序列相关辨识差分算法[J].矿产勘查,2017,8(3):457-463 |
| 应用于激电勘探的m序列相关辨识差分算法 |
| M-sequence correlation identification difference algorithm applied to IP prospecting |
| 投稿时间：2017-03-10 |
| DOI： |
| 中文关键词: m序列 抗干扰 激电参数 Cole-Cole模型 |
| 英文关键词: m-sequence, anti-interference, IP parameters, Cole-Cole model |
| 基金项目: |
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| 摘要点击次数: 1824 |
| 全文下载次数: 1684 |
| 中文摘要: |
| m序列与随机噪声相关程度很低,因而具有抗干扰性能。在激电勘探应用中,传统m序列相关辨识时域公式在过采样、大位宽的情况下与理论值不符,因此推导出一种在τ<Δt范围计算冲激响应的差分算法,并通过Cole-Cole时域激电模型的数值模拟验证了该算法的正确性,为m序列相关辨识在激电勘探中的应用提供了一种新的思路。 |
| 英文摘要: |
| The m-sequence has anti-interference performance since it is weakly correlated to the random noise. Traditional m-sequence time domain identification formula does not fit the theoretical value well under the situation of oversampling and large bit width, thus we deduces a difference algorithm of impulse response when time is limited to the bit width, then it is verified by the numerical simulation of the Cole-Cole time domain IP model. So this new algorithm may provide a new clue for m-sequence identification and its application in IP exploration. |
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