作者投稿和查稿 主编审稿 专家审稿 编委审稿 远程编辑

计算机工程 ›› 2012, Vol. 38 ›› Issue (3): 60-62. doi: 10.3969/j.issn.1000-3428.2012.03.021

• 网络与通信 • 上一篇    下一篇

一种改进的镜像射线跟踪方法

袁正午,杨青宏,沐 维   

  1. (重庆邮电大学计算机科学与技术学院,重庆 400065)
  • 收稿日期:2011-08-19 出版日期:2012-02-05 发布日期:2012-02-05
  • 作者简介:袁正午(1968-),男,教授、博士,主研方向:移动位置服务,射线跟踪技术;杨青宏、沐 维,硕士研究生
  • 基金资助:
    重庆市教委2011年科学技术研究基金资助项目“基于射线跟踪和Voronoi-图的室内定位研究”(KJ110514);重庆邮电大学计算机科学与技术学院“云计算”专项基金资助项目(JK-Y-2010001)

Improved Image Ray Tracking Method

YUAN Zheng-wu, YANG Qing-hong, MU Wei   

  1. (College of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China)
  • Received:2011-08-19 Online:2012-02-05 Published:2012-02-05

摘要: 镜像法通常只能运用在简单的传播环境中,为在复杂的环境中获得高精度的预测结果,分析测试射线法和镜像法的特点,提出一种新的射线跟踪方法。运用测试射线法快速地找出从源点到场点的粗略路径,利用镜像技术进行路径修正。测试结果表明,该方法具有较高的计算精度。

关键词: 射线跟踪, 镜像法, 测试射线法, 路径损耗

Abstract: In order to get accurate predictions in the complex environment, for the image method is usually only used in simple communication environment, a new ray tracking method is obtained by analyzing the characteristics of test ray and image ray method. Test ray method is effectively and succinctly used to find out a rough path from the source to the scene point. The path is corrected by image ray method. This method has high accuracy and can be used in complex environments.

Key words: ray tracking, method of image, method of test ray, path loss

中图分类号: