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基于地球化学参数的海底沉积物端元定量判识方法研究Ⅰ.分离沉积物端元的最优斜交成分因子算法

, PP. 70-77

Keywords: 因子得分成分化,最优斜交变换,海底沉积物,端元物质

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Abstract:

系统介绍“分离沉积物端元的最优斜交成分因子算法”,此算法包括主成分分析、因子得分成分化和最优斜交变换三部分.此算法可获得成分化的非负的斜交因子得分,弥补了Q型因子分析仅能用于样品间的相互关系及样品的分类研究,而不能胜任海底沉积物端元物质分离工作之不足.方法适合于沉积物物源端元定量分离工作.将此方法应用于冲绳海槽海底表层样,成功地分离出长江陆源物质.此方法同样适合于诸如岩石、水体、土壤污染等混合过程的端元定量分离工作.

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