【摘 要】
：
In the fingerprint matching-based wireless local urea network (WLAN) indoor positioning system,Kalman filter (KF) is usually applied after fingerprint matching
【机 构】
：
Communication Research Center
【基金项目】
：
国家高技术研究发展计划(863计划)
论文部分内容阅读
In the fingerprint matching-based wireless local urea network (WLAN) indoor positioning system,Kalman filter (KF) is usually applied after fingerprint matching algorithms to make positioning results more accurate and consecutive.But this method,like most methods in WLAN indoor positioning field,fails to consider and make use of users moving speed information.In order to make the positioning results more accurate through using the users moving speed information,a coordinate correction algorithm (CCA) is proposed in this paper.It predicts a reasonable range for positioning coordinates by using the moving speed information.If the real positioning coordinates are not in the predicted range,it means that the positioning coordinates are not reasonable to a moving user in indoor environment,so the proposed CCA is used to correct this kind of positioning coordinates.The simulation results prove that the positioning results by the CCA are more accurate than those calculated by the KF and the CCA is effective to improve the positioning performance.
其他文献
The effects of strategy on the network security defense and the related research on intrusion response strategy are briefly presented,with the focus on the stat
The development of alternative casting processes is essential for the high demand of light weight magnesium components to be used in the automotive industry,whi
The effects of trace additions of multi-alloying elements (Ti,Nb,V,Mo) on carbides precipitation and ascast microstructure of eutectic high chromium cast iron c
Elasto-plastic finite element method is used for the welding residual stress calculation in butt welded joint of carbon steel and stainless steel,fluctuating pr
The effects of higher modes and torsion have a significant impact on the seismic responses of asymmetric-plan tall buildings.A consecutive modal pushover (CMP)
Binary monomers of maleic acid and vinyl acetate are grafted onto poly(vinylidene fluoride) (PVDF)powder by pre-irradiation induced graft polymerization techniq
Community discovery of complex networks,esp.of social networks,has been a hotly debated topic in academic circles in recent years.Since actual networks usually
This fully digital beam position measurement instrument is designed for beam position monitoring and machine research in Shanghai Synchrotron Radiation Facility
Liners in wet ball mill for mineral processing industry must bear abrasive wear and corrosive wear,and consequently,the service life of the liner made from trad
The current existed scheduling schemes which are generally derived from the antenna selection algorithms can improve the sum-rate of MU-MIMO system to some exte