一种根据传播环境分类校正传播模型的方法  

A Propagation Model Calibration Method Based on Propagation Environment Classification

作　　者：韦再雪[1] 杨大成[1] 

机构地区：[1]北京邮电大学电信工程学院,北京100876

出　　处：《北京邮电大学学报》2005年第5期117-120,共4页Journal of Beijing University of Posts and Telecommunications

摘　　要：充分利用从电子地图获取的相关参数,提出了一种根据传播环境分类校正传播模型的方法.实验与仿真证明,不恰当地校正传播模型可给路径损耗预测带来较大误差,误差均值达30dB以上.而根据传播环境分类校正传播模型的方法满足了合理校正传播模型,提高路径损耗预测准确性的目的,较之常用模型及任意选择的校正后模型,使用该方法分类校正的传播模型对路径损耗预测的准确性提高了6～30dB.A propagation model calibration method based on propagation environment classification was presented, which took advantages of the information obtained from digital maps. Experiments and simulation results show that the inappropriate application of calibrated propagation models leads to larger errors of path loss prediction, with a mean error around 30 dB. While with the proposed method, the accuracy of path loss prediction could be improved with the mean error decreasing 6 dB to 30 dB

关 键 词：传播模型 传播模型校正 聚类分析 路径损耗预测 无线网络规划 

分 类 号：TN929.5[电子电信—通信与信息系统]