1Pratap Misra,Per Enge.GPS positioning system signals,measurements,and performance[M].2001.
2Sharad Chandra Agrawal,Sandeep Agrawal.Location Based Services[M].
3Zhen Dai,Stefan Knedlik,Pakom Ubolkosold.Integrated GPS Navigation for Civilian Vehicles in Challenging Environment[J].Vehicular Electronics and Safety,2007.
4Heinrichs G,Doris F,Mulassano P.Hybrid Navigation and Communication Positioning in Cellular Radio Networks with a Common RAKE Receiver Architecture[J].Spread Spectrum Techniques and Applications,2004 IEEE Eighth International Symposium,2004:668-672.
5Soliman S,Agashe P,Fernandez I,Vayanos A,Gaal P,Oljaca M,gpsOneTM:A hybrid position location system[J].Spread Spectrum Techniques and Applications,2000 IEEE Sixth International Symposium,2000:330-335.
6Heinriehs G,Mulassano P,Dovis F,A Hybrid Positioning Algorithm for Cellular Radio Networks by Uuing A Common Rake Receiver Architecture[J].Personal,Indoor and Mobile Radio Communications,15th IEEE International Symposium,2004 4:2347-2351.