| 油气放射性方法勘查的数据预处理效果 |
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| 引用本文： | 王湘云,石玉春.油气放射性方法勘查的数据预处理效果[J].铀矿地质,1995,11(3):164-168. |
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| 作者姓名： | 王湘云 石玉春 |
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| 作者单位： | 南京大学地球科学系 |
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| 摘 要： | 本文根据川中某地１５０ｋｍ２范围内应用的７种放射性方法，在同一测点上获取的９个参数，共１９０２个测量数据，进行了统计分布特征研究。研究结果表明：７种放射性测量方法所获的原始数据具有３种统计分布类型──近似算术正态型、对数正态型、混合型。利用广义幂正态转换方法［１］将上述３种分布类型归结为一种分布──正态分布，获得了客观的区域背景值和异常下限值。为进一步的统计分析提供了一个较为合理的数学模型。
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| 关 键 词： | 油气，放射性方法，数据预处理，广义幂正态转换，正态分布 |
THE DATA PREPROCESSING EFFECT ON RADIOMETRIC SURVEY FOR PETROLEUM AND GAS |
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| Wang Xiangyun, Shi Yuchun, Yan Ming, Ma Hongwei Wang Niansheng.THE DATA PREPROCESSING EFFECT ON RADIOMETRIC SURVEY FOR PETROLEUM AND GAS[J].Uranium Geology,1995,11(3):164-168. |
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| Authors: | Wang Xiangyun Shi Yuchun Yan Ming Ma Hongwei Wang Niansheng |
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| Abstract: | Based on seven kinds of radiometric survey in an area covering 150km2 in the middle partof Sichuan,nine parameters at eac measuring point with a total number of 1 902 data wereobtained and a study on statistical distribution characteristics was conducted. The resultsmal distribution,logarithmic normal distribution,the above two-mixed distribution. By generalized power transformation,the above-mentioned three types of statistical distribution werenormalized into a kind of statistical distribution,i. e normal distribution,thus obtaining objective background and anomaly threshold values, and providing a more proper mathematicalmodel for further statistical analysis. |
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| Keywords: | Petroleum and gas Radiometric survey Data preprocessing Generalizedpower transformation Normal distribution |
| 本文献已被 CNKI 维普 等数据库收录！ |
