| 由重迭的穆斯堡尔谱求解超精细参数分布的最大熵方法 |
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| 引用本文： | 徐祖雄,马如璋.由重迭的穆斯堡尔谱求解超精细参数分布的最大熵方法[J].物理学报,1988,37(12):1949-1955. |
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| 作者姓名： | 徐祖雄 马如璋 |
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| 作者单位： | 北京科学技术大学金属物理教研室 |
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| 摘 要： | 对于晶态或非晶态材料的严重重迭的穆斯堡尔谱,本文导出了一种弱约束条件的最大熵拟谱方法。求解的超精细参数分布具有正值性和整体光滑性。通过放松约束可以改善局域光滑性。最大熵方法使拟合结果最大限度地与已知信息符合,而与未知信息无关,从而保证了拟合结果的客观性和可靠性。
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| 收稿时间： | 3/9/1988 12:00:00 AM |
MAXIMUM ENTROPY EVALUATION OF OVERLAPPED M?SSBAUER SPECLRA |
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| XU ZU-XIONG and MA RU-ZHANG.MAXIMUM ENTROPY EVALUATION OF OVERLAPPED M?SSBAUER SPECLRA[J].Acta Physica Sinica,1988,37(12):1949-1955. |
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| Authors: | XU ZU-XIONG and MA RU-ZHANG |
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| Abstract: | A calculation scheme for the maximum entropy evaluation of the distribution of hyper-fine parameters from overlapped M?ssbauer spectra is proposed, which is subjected to the weak contraint condition. Maximum entropy evaluation is consistent with all given informations and has little correlation with the indefinite informations. The fitted distribution is characteristic of its positivity and bulk smoothness. Its local smoothness can be improved with relaxation of the contraint. The maximum entropy evaluation proved a more reliable method for fitting overlapped M?ssbauer spectra.
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