Orientation Estimation Method Using Divergence of Signal Strength Distribution
نویسندگان
چکیده
Over the last few years, many positioning systems using wireless LAN have been developed. Some systems use signal strength for positioning. But the distribution of received signal strength depends on orientation of mobile terminal. In this paper, we examine the differences of received signal strength distribution to each orientation and propose an orientation estimation method using the divergence of received signal strength distribution. With our method, users can determine orientation only using a wireless LAN adapter. Evaluation results show that the accuracy of 2-way estimation is 92% and 4-way estimation is 83% under six seconds observation of four access points.
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