WANG Zemin, QIU Lei, SUN Wei, WANG Haijun. Accuracy Analysis of L_2 C Code of Dual Frequency GPS Receiver[J]. Geomatics and Information Science of Wuhan University, 2008, 33(8): 779-782.
Citation:
WANG Zemin, QIU Lei, SUN Wei, WANG Haijun. Accuracy Analysis of L_2 C Code of Dual Frequency GPS Receiver[J]. Geomatics and Information Science of Wuhan University, 2008, 33(8): 779-782.
WANG Zemin, QIU Lei, SUN Wei, WANG Haijun. Accuracy Analysis of L_2 C Code of Dual Frequency GPS Receiver[J]. Geomatics and Information Science of Wuhan University, 2008, 33(8): 779-782.
Citation:
WANG Zemin, QIU Lei, SUN Wei, WANG Haijun. Accuracy Analysis of L_2 C Code of Dual Frequency GPS Receiver[J]. Geomatics and Information Science of Wuhan University, 2008, 33(8): 779-782.
1School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China;2Research Center for Hazard Monitoring and Prevention,Wuhan University,129 Luoyu Road,Wuhan 430079,China;3Wuhan Geotechnical Engineering and Surveying Institute,129 Luoyu Road,Wuhan 430022,China;4The Second Artillery Petty Officer School,Qingzhou 262500,China
Using the actual data collection,the quality of L2 carrier phase is analyzed in two respects,which are SNR and the positioning residual error.Some conclusions are given.Firstly,the SNR of L2 carrier phase resumed by L2 C code is improved obviously,almost close to the SNR of L1 carrier,with a difference of less than 5 dBHz.Secondly,it has a more stable SNR than that obtained before GPS modernization.Meanwhile,the positioning residual error is smaller than L2 carrier phase without L2 C code,which can significantly improve positioning accuracy.