摘要
提出一种基于信号衰减的GSM移动定位算法,该算法从移动台上行信令中提取相关网络信号衰减参数,通过改进的无线信道数学模型计算出移动台与附近基站的距离,通过孤立点检测算法降低偶然误差,给出移动台的估计位置。实验表明,该算法有效提高定位精度,且对现有网络和移动台无任何要求,实用性强。
This paper presents a mobile location algorithm based on signal attenuation and outliers detection. It takes advantages of original parameter of signal attenuation from mobile station＇s uplink channel. It can translate the distance information from mobile station to base station through the improved wireless channel mathematics model, and can decrease occasional error through the new outliers＇ detection algorithms. Experiment result indicates that the algorithm is efficient. The position accuracy is improved without modification on both network and mobile stations.
出处
《计算机工程》
CAS
CSCD
北大核心
2010年第3期280-282,F0003,共4页
Computer Engineering
基金
国家自然科学基金资助项目(60873209)
关键词
定位算法
移动定位
信号衰减
孤立点检测
position algorithm
mobile location
signal attenuation
outliers detection
