| 简易Mie散射数值计算方法的研究 |
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| 引用本文： | 王君,何俊发,王莲芬,王红霞,周友杰.简易Mie散射数值计算方法的研究[J].应用光学,2005,26(4):13-16. |
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| 作者姓名： | 王君 何俊发 王莲芬 王红霞 周友杰 |
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| 作者单位： | 第二炮兵工程学院,物理教研室,陕西,西安,710025 |
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| 摘 要： | 在回顾光散射理论发展史的基础上,分析了常规Mie散射计算实现过程中的问题,并论述一种改进的简易Mie散射数值计算方法。参照科学记数法定义了一种“EDecimal”类型的数据结构及其基本数学运算和三角函数运算。采用动态链表技术实现了高效的C++ Mie散射计算程序。该程序不仅可以用来处理极端条件下的Mie散射计算,而且显著降低了算法的时间复杂度,提高了执行效率。与相同精度要求下采用Wiscombe编写的MIEV0程序的计算结果进行了比较,并指出此程序精确可靠。
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| 关 键 词： | Mie散射 简易Mie计算 动态链表 算法分析 |
| 文章编号： | 1002-2082(2005)04-0013-04 |
| 收稿时间： | 2004/9/21 |
The Implementation of Straightforward Mie Scattering Numerical Calculation |
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| WANG Jun,HE Jun-fa,WANG Lian-fen,WANG Hong-xia,ZHOU You-jie.The Implementation of Straightforward Mie Scattering Numerical Calculation[J].Journal of Applied Optics,2005,26(4):13-16. |
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| Authors: | WANG Jun HE Jun-fa WANG Lian-fen WANG Hong-xia ZHOU You-jie |
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| Institution: | Department of Physics,Institute of Second Artillery Engineering,Xi'an 710025,China |
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| Abstract: | Based on a short retrospect of the developmental history of light scattering theory, the problems in conventional Mie scattering calculations are analyzed. A simple yet accurate algorithm for the improved Mie scattering calculations is described in detail. A new data type named"EDecimal" is defined, and its basic mathematical operation and trigonometric functions are developed. The dynamic chain is used in implementing the efficient C++ code for fast and accurate Mie calculation.The code can handle extreme cases in Mie scattering calculations and reduce the time complexity of this algorithm. By comparison with Wiscombe's MIEV0 code requiring a same precision,this method shows up its the accuracy and reliability. |
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| Keywords: | Mie scattering straightforward Mie calculation dynamic chain algorthmic analysis |
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