X射线定量相分析的无标样法等一系列新方法都要求解联立方程组。经常出现的病态方程组在求解过程中误差的传递和叠加会使解得的结果误差很大,甚至得到不合理的负解。本文提出一种利用各种可能组合的最小二乘法方程组求得的解,采用抛弃平均法处理求得较精确可靠的物相定量结果的新方法。实际分析表明,该新方法简便实用,可得到理想的结果。
A new method for correctly and reliably solving all available combina-tion of the least square simultaneous equations in the quantitative X-ray phaseanalysis has been proposed by treatment of selective average. It seems to be a sim-ple and applicable method after the adoption in actual practice.
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