The algorithm of position related channel character extraction and match localization based on ray-tracing

In this paper, an algorithm of position related channel character extraction and match localization based on ray-tracing is presented. Firstly the radio propagation of beacons is simulated and the time series for location is produced by using ray-tracing, and then wavelet transform and singular value decomposition are used for getting the character of location from the time series and build the character-location database. The characters of targets are measured to match the characters which are from the character-location database. Simulation results show that the character of location get from the algorithm has high stabilization, and when there are only 5 beacons, 90% location error is within 2 meters. As the density of beacon increasing, the accuracy becomes much better.