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该文提出了一般各向异性介质中的改进完全匹配层（ＭＰＭＬ），导出了各向异性介质中的ＭＰＭＬ完全匹配条件，数值计算的结果证明了方法的有效性，并表明各向异性媒质中，ＭＰＭＬ吸收层在吸收凋落波方面比ＰＭＬ更有效。
In this paper, an improved perfect matching layer (MPML) is proposed in general anisotropic media, and the exact matching condition of MPML in anisotropic media is derived. The numerical results show the effectiveness of the method and show that anisotropic media , The MPML absorber layer is more effective than PML in absorbing the litter waves.