摘要： 提出一种视距条件下基于加权多维定标(MDS)技术实现到达时间(TOA)组网定位新算法。利用改进的MDS技术，得到移动台位置的粗估计值。分析基站拓扑结构对定位结果的影响，利用求组合数的方法，分别求出每种基站组合下移动台的位置估计，并与粗估计值进行比较，均方误差小的基站组合对最终定位结果贡献较大，通过加权求得最终结果。与传统MDS算法相比，加权MDS算法对冗余信息的处理能力更强，定位精度更高。
关键词:
组网定位,
加权多维定标,
拓扑结构,
到达时延
Abstract: A Time-Of-Arrival(TOA) location algorithm based on the weighted Multidimensional Scaling(MDS) technology under the condition of line-of-sight is proposed. The location of mobile is estimated roughly using improved MDS. The impact of the topological structure of base stations to the location results is analyzed. It gets the mobile position for each group by using the improved MDS algorithms, and compares them with the rough estimation. The smaller mean square error has great contributions to final results, which is obtained by weighting the result of each group. Compared with the traditional MDS algorithms, the ability to process the redundant information is stronger with higher positioning accuracy.
Key words:
multi-receiver location,
weighted Multidimensional Scaling(MDS),
topological structure,
Time-Of-Arrival(TOA)
中图分类号:
张美杨, 季仲梅, 王建辉. 基于加权多维定标的组网定位算法[J]. 计算机工程, 2011, 37(2): 97-99.
ZHANG Mei-Yang, JI Zhong-Mei, WANG Jian-Hui. Multi-receiver Location Algorithm Based on Weighted Multidimensional Scaling[J]. Computer Engineering, 2011, 37(2): 97-99.