4Cheung S Y,Ergen S C ,Varaiya P.Traffic surveillance with wireless magnetic sensors[C]//Prc 12th ITS World Congress.San Francisco: [s.n], 2005.
5Duarte M F,Hu Yu-hen.Vehicle classification in distributed sensor networks[J].Journal of Paralle land Distributed Computing,2004,7 (64) :826-838.
6Coifman B,Dhoorjaty S,Lee Z H.Estimating median velocity instead of mean velocity at single loop detectors[J].Transportation Research, 2003,3( 11 ) : 863-880.
7Caruso C J,Withamwasam L S.Vehicle detection and compass applications using AMR magnetic sensors[EB/OL].(1999-05)[2005- 08-10].http://www.ssec.honeywelI.com.
8Caruso M J,Smith C H,Bratland T,et al.A new perspective on magnetic field sensing[EB/OL].[1998-OS].http://www.magneticsensors.com.datasheet/new pers.pdf.
9Cheung S Y,Coleri S.Traffic measurement and vehicle classification with a single magnetic sensor[C]//84th Annual Meeting Transportation Research Board.Washington D C :[s.n],2005.
10Knaian A N.A wireless sensor network for smart roadbeds and intelligent transportation systems[D].USA:Masschusetts Institute of Technology, 2000.
