基于WCDMA系统的传播模型校正的研究  

Study on Propagation Model Tuning Based on WCDMA System

作　　者：陈博[1] 石文孝[1] 杨明静[1] 

机构地区：[1]吉林大学通信工程学院,长春130012

出　　处：《吉林大学学报（信息科学版）》2008年第1期38-43,共6页Journal of Jilin University（Information Science Edition）

基　　金：吉林省科技发展计划基金(20070526)

摘　　要：为获得适合我国城市环境的WCDMA(Wideband Code Division Multiple Access)网络的通用室外传播模型,更好地进行WCDMA无线网络规划。在现有传播模型的基础上,采用最小二乘法,对CW(Continuous Wave)测试所获得的数据进行曲线拟合,得到适合中小城市WCDMA网络的传播模型。仿真结果表明,该模型校正方法适合地形较为平坦的中小城市。校正后模型预测值与实测数据的最大误差比校正前降低了40 dB,且具有对数字地图依赖程度低的优点,对指导我国WCDMA网络规划具有应用价值。In order to obtain universal outdoor propagation model of WCDMA （ Wideband Code Division Multiple Access） network suited for Chinese city environment and a better direct WCDMA network planning. A tuned propagation model suited for WCDMA network in small and medium-sized city is established. It is obtained by curve-fitting using least-squares according to the testing data from CW （ Continuous Wave） test. Results of simulation show that this tuning method suits for smooth small and medium-sized city. The maximum error between model after adjustment and path-testing level is reduced by 40 dB. Furthermore, this method has the advantage of having less reliant to digital map. It is valuable to directing Chinese WCDMA network planning.

关 键 词：带宽码分多址 传播模型 模型校正 最小二乘 

分 类 号：TN929.5[电子电信—通信与信息系统]