An improved weighted trilateration localization algorithm

Aiming at the problem that trilateration localization method has low localization precision,an improved weighted trilateration localization algorithm was proposed.Based on the theory that the equilateral configuration of refer nodes can lead to the highest localization precision,this algorithm brings the interior angles and slide length information of the triangle surrounded by refer nodes to trilateration localization algorithm as weighted factor to reflect the difference between this triangle and equilateral triangle.Experiment simulation results showed that this improved algorithm increased localization precision.