By Jiadong Sun, Wenhai Jiao, Haitao Wu, Mingquan Lu
China satellite tv for pc Navigation convention (CSNC) 2014 court cases presents chosen learn papers from CSNC2014, hung on 21-23 could in Nanjing, China. The subject of CSNC2014 is 'BDS software: Innovation, Integration and Sharing'. those papers talk about the applied sciences and purposes of the worldwide Navigation satellite tv for pc procedure (GNSS) and the most recent development made within the China BeiDou procedure (BDS) specifically. they're divided into nine subject matters to compare the corresponding periods in CSNC2014, which generally lined key subject matters in GNSS. Readers can know about the BDS and continue abreast of the newest advances in GNSS strategies and applications.
SUN Jiadong is the manager fashion designer of the Compass/ BDS, and the Academician of chinese language Academy of Sciences (CAS); JIAO Wenhai is a researcher at China satellite tv for pc Navigation workplace; WU Haitao is a professor at Navigation Headquarters, CAS; LU Mingquan is a professor at division of digital Engineering of Tsinghua University.
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Extra resources for China Satellite Navigation Conference (CSNC) 2014 Proceedings: Volume III
IDS meetings 7. Mercier F (2010) DORIS phase and ionosphere effects. IDS meetings 8. Choi KR (2003) Jason-1 precision orbit determination using GPS combined with SLR and DORIS tracking data. The University of Texas, Austin 9. Cerri L, Ferrage P (2012) DORIS satellites models implemented in POE processing. SALPNT-BORD-OP-16137-CN 10. Zelensky NP, Lemoine FG, Chinn1 DS, Pavlis1 DE, Rowlands DD, Le Bail K (2010) Improving DORIS troposphere modeling for Jason-1 and Jason-2. IDS meetings 11. Zelensky NP, Berthias JP, Lemoine FG (2006) DORIS time bias estimated using Jason-1, TOPEX/Poseidon and ENVISAT orbits.
38 Q. Zhou et al. Fig. 5 Conclusions In this paper, we determinated precise orbit for Haiyang 2A based on DORIS undifferenced dual frequency pseudo-range and phase measurements. These orbits are validated using orbit inter-comparison and SLR comparison. 3 cm, respectively. 24 cm. meanwhile we determinated the orbit using Doppler observables. Compared with the orbits computed with Doppler measurements, the accuracy of orbits computed with un-differenced phase observables in along-track and radial is a bit higher.
The accuracy of the computed orbit can satisfy the demands for high precision orbit of HY2A scientific tasks. 3 Doppler Orbit and Un-differenced Phase Orbit Comparison with Respect to CNES POE In order to analyze the impacts of observation on orbit determination results, The Doppler orbit of HY2A are determinated independently from 41th day to 150th day 2012 except un-differenced phase orbit. In Fig. 3 We compare Doppler and phase orbits with respect to CNES POE in along-track, cross-track, radial-track and 3D directions, blue for Doppler RMS and red for Phase RMS, respectively.