激光核聚变中x-光解谱方法的光滑化技术

我们提出了一个带有周期性光滑化的限幅迭代方法,用它求解激光核聚变中的X-光能谱获得了较好的结果。本文着重介绍这种光滑化技术。我们通过构造一个光滑化权函数并在迭代过程中周期性地用这一权函数对迭代谱作光滑化处理,从而消除了迭代过程中产生的X-光能谱数值结构,改善了迭代收敛特性,提高了解谱水平。文中并讨论了光滑化的物理基础,给出了一个理论分析和关于光滑化排数以及权函数宽度选取的经验结果。

A SMOOTHING TECHNIQUE IN METHOD SOLVED X-RAY SPECTRA IN LASER NUCLEAR FUSION

We have developed a method to solve X-ray spectra. The method includes a iterative with range limit and a periodic smoothing. Better resuts had been obtained by use the method to solve X-ray spectra in laser nuclear fusion. This paper places stress on introduction the smoothing technique in the method. A smoothing weigh fuction was formed and iterative spectra was treated periodically by the weigh fuction in iterative Course. Computational results show, Numerical structure producted in iterative course of X-ray spectra was eliminated and convergence of iterative was improved and level of solving spectra was raised by using the techn-ique. physics bases of smoothing are discussed, a theoretical analyses about smoothing and experiemental results on number of smoothing and weigh fuction are given in this Paper.