计算物理 ›› 2002, Vol. 19 ›› Issue (2): 121-126.

• 论文 • 上一篇    下一篇

黑体辐射数值反演的快速稳定算法

李翠环, 肖庭延   

  1. 河北工业大学文理学院, 天津 300130
  • 收稿日期:2000-07-26 修回日期:2001-02-25 出版日期:2002-03-25 发布日期:2002-03-25
  • 作者简介:李翠坏(1975-),女,河北,硕士生,从事计算教学及其应用软件研究,河北工业大学文埋予院421信箱.
  • 基金资助:
    河北省自然科学基金资助项目

THE FAST AND STABLE ALGORITHMS FOR THE NUMERICAL INVERSION OF BLACK BODY RADIATION

LI Cui-huan, XIAO Ting-yan   

  1. Hebei University of Technology, Tianjin 300130, P R China
  • Received:2000-07-26 Revised:2001-02-25 Online:2002-03-25 Published:2002-03-25

摘要: 讨论采用Tikhonov正则化方法进行黑体辐射数值反演的相关技术问题,特别是将双参数模型提供的相当好的正则参数初值与求解Morozov偏差方程的一个三阶收敛格式相结合,给出了一个新的、具有高效稳定等特点的混合数值反演算法,并进行了数值试验.这一算法在原则上也适合其它许多物理参数识别问题(如Fermi体系的反演、各种类型的Abel方程的数值反演等).

关键词: Tikhonov正则化, 黑体辐射数值反演, 双参数模型, 混合算法

Abstract: By using the Tikhonov Regularization Method,the related techniques for the numerical inversion of black body radiation are discussed.The special interest focuses on the presentation and experiment of some new and hybrid algorithms,which generate a good starting-up strategy separately with Newton method and a 3-order-convergence iterative scheme of solving the Morozov discrepancy equation to determine the regularization parameter.The numerical test is also made to illustrate the high efficiency and good stability of the proposed algorithms.

Key words: Tikhonov regularization, numerical inversion of black body, Two-Parameter Algorithm, hybrid algorithm

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