ZigBee定位算法论文英文版(8)

x,y ¦wk xk,yk ,

k 1p(4)

the wk means the weight of the k-th nearest reference node sorted by the E, the (xk,yk) is the coordinate of this reference node and the (x,y) is the estimation position of mobile node. The weight that depends on the p-nearest reference nodes’ Euclidean distance of the mobile node is defined as:

1wk 'Ek¦El 1p1'

l, (5)

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