室内射线跟踪模拟退火参数校正方法  

Indoor ray tracing models calibration based on simulated annealing algorithm

作　　者：邱光染 郭艳艳[1] 杨越[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《信息技术》2016年第11期209-211,共3页Information Technology

摘　　要：射线跟踪信道模型具有准确度高的特点,且能适用于复杂场景。但预测精度严重依赖于介电常数等预设参数,为此要利用反演方法对模型参数进行校正。文中以一个室内场景为例,采用模拟退火算法作为射线跟踪的参数校正方法,根据少量实测数值反推出某特定场景射线跟踪的最优参数,从而能够进行更精准的场强预测。Ray tracing field prediction model performs well in accuracy and it can be used in complex scenes. However,prediction accuracy largely relies on parameters,so calibration must be done by using inversion methods. Taking an indoor environment as an example,this article shows an indoor ray tracing calibration method by using simulated annealing algorithm. Through some measured points,the optimal parameters in a site-specific scene could be inferred in order to predict more accurately.

关 键 词：射线跟踪模型 参数校正 模拟退火算法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]