Ultra-wideband wireless sensor networks with some of the traditional wireless sensor networks unmatched advantages,is a candidate technology for future wireless chi hair straightener sensor network applications.This thesis presents TOA based cheap polo shirts location technology advantage,and analyzes TOA based location method in the ralph lauren polo shirts error performance.TOA estimation algorithm based on energy detection don't need precise local template to achieve low complexity. According to analysis and comparison for several existent Lacoste Polo Shirts estimation Lacoste Polo Shirts algorithm based on energy detection, we found that TC(threshold-crossing) algorithm normalized threshold is set based on the MMR of the energy samples is superior to others on performance.An improved TOA estimation algorithm combined with optimized Early-late Lacoste Shirts Gate signal processing based on MMR-TC algorithm is proposed.The simulation results show that improved MMR-TC algorithm compared with a single MMR-TC algorithm to further improve the location accuracy.
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