Research on Ranging Optimization and Twice-Weighted Centroid Calculation in Wireless Sensor Network Localization Algorithm

摘要

In practical applications of ranging technology commonly used in wireless sensor positioning algorithm, rangingbetween nodes will inevitably produce errors due to environmental factors and measurement hardware effects. Thewireless sensor network localization algorithm DGC-TWCL proposed in this paper takes advantage of the Cayley-Mengerdeterminant used to provide distance geometry constraints(DGC) in two-dimensional real space to optimize and correctthe ranging error, combined with the twice-weighted centroid localization(TWCL) calculation, the final position of theunknown node can be obtained. The experiment results show that the algorithm can get the positioning results with higheraccuracy and better robustness.