定位机制研究(Localization The limitations of existing positioning systems motivate a novel scheme of network localization. - Some special nodes (a.k.a.anchors or beacons)know their global locations and the rest determine their locations by measuring the geographic information of their local neighboring nodes. ●定位机制研究（Localization） • The limitations of existing positioning systems motivate a novel scheme of network localization. – Some special nodes (a.k.a. anchors or beacons) know their global locations and the rest determine their locations by measuring the geographic information of their local neighboring nodes