3Akyildiz I F, Su W, Sankarasubramaniam Y, et al.Wireless sensor network:A survey[J].Computer Networks,2002,38(4):393-422.
4Rabaey J M,Ammer M J,da Silva J L,et al.Picorodio supports ad hoe ultra-low power wireless networking[J].Computer,2000,33(7):42-48.
5Bahl P, Padmanabhan V N. RADAR: An in-building RF-based user location and tracking system [C]. Tel Aviv, Israel: Proceedings of the IEEE INFOCOM,2000:775-784.
6Harter A,Hopper A,Steggles P, et al.The anatomy of a contextaware application[J].Wireless Networks,2002,8(2-3):187-197.
7Girod L, Estrin D. Robust range estimation using acoustic and multimodal sensing[C].IEEE International Conference on Intelligent Robusts and Systems,2001 : 1312-1320.
8Niculescu D,Nath B.Ad hoc position system (APS) using AoA [C].IEEE INFOCOM,2003:1734-1743.
9Bulusu N,Heidemann J,Estfin D.GPS-Iess low cost outdoor localization for very small devices[J].IEEE Personal Communications Magazine,2000,7(5):28-34.
10Nicolescu D,Nath B.Ad Hoc positioning systems(APS)[C].Proceedings of IEEE GLOBECOM,2001:2926-2931.