PMID- 32824205
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200918
IS  - 1424-8220 (Electronic)
IS  - 1424-8220 (Linking)
VI  - 20
IP  - 16
DP  - 2020 Aug 15
TI  - Real-Time Detection of Orbital Maneuvers Using Epoch-Differenced Carrier Phase 
      Observations and Broadcast Ephemeris Data: A Case Study of the BDS Dataset.
LID - 10.3390/s20164584 [doi]
LID - 4584
AB  - The orbital maneuvers of the global navigation satellite system (GNSSs) have a 
      significant influence on the performance of the precise positioning, navigation, 
      and timing (PNT) services. Because the Chinese BeiDou Navigation Satellite System 
      (BDS) has three types of satellites in the geostationary orbit (GEO), inclined 
      geosynchronous orbit (IGSO), and medium earth orbit (MEO) maneuvers occur more 
      frequently. Thus, it is essential to determine an effective approach for the 
      detection of orbital maneuvers. This study proposes a method for the detection of 
      orbital maneuvers using epoch-differenced carrier phase observations and 
      broadcast ephemeris data. When using the epoch-differenced velocity estimation as 
      a basic data solution model, the time discrimination and satellite identification 
      factors are defined and used for the real-time detection of the beginning and the 
      pseudorandom noise code (PRN) of satellites. The datasets from four GNSS stations 
      (WUH1, BJF1, POHN, CUT0) from the year 2016 were collected and analyzed. The 
      validations showed that the beginning, the PRN of the orbital maneuver of the 
      satellite can be precisely detected in real time for all GEO, IGSO, and MEO 
      satellites, and the detected results also showed good consistency, with the 
      beginning time at a difference of 1-2 min across different stations. The proposed 
      approach was observed to be more sensitive, and the detected beginning time was 
      about 30 min earlier than the single point positioning approach when the 
      high-precision carrier phase observation was used. Thus, orbital maneuvering can 
      be accurately detected by the proposed method. It not only improves the 
      utilization of the collected data but also improves the performance of PNT 
      services.
FAU - Tu, Rui
AU  - Tu R
AUID- ORCID: 0000-0003-4706-5373
AD  - National Time Service Center, Chinese Academy of Sciences, Shu Yuan Road, Xi'an 
      710600, China.
AD  - Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of 
      Sciences, Xi'an 710600, China.
AD  - School of Astronomy and Space Science, University of Chinese Academy of Sciences, 
      Yu Quan Road, Beijing 100049, China.
FAU - Zhang, Rui
AU  - Zhang R
AUID- ORCID: 0000-0002-7322-2953
AD  - National Time Service Center, Chinese Academy of Sciences, Shu Yuan Road, Xi'an 
      710600, China.
AD  - Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of 
      Sciences, Xi'an 710600, China.
FAU - Fan, Lihong
AU  - Fan L
AD  - National Time Service Center, Chinese Academy of Sciences, Shu Yuan Road, Xi'an 
      710600, China.
AD  - Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of 
      Sciences, Xi'an 710600, China.
FAU - Han, Junqiang
AU  - Han J
AUID- ORCID: 0000-0002-8707-9297
AD  - National Time Service Center, Chinese Academy of Sciences, Shu Yuan Road, Xi'an 
      710600, China.
AD  - Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of 
      Sciences, Xi'an 710600, China.
FAU - Zhang, Pengfei
AU  - Zhang P
AD  - National Time Service Center, Chinese Academy of Sciences, Shu Yuan Road, Xi'an 
      710600, China.
AD  - Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of 
      Sciences, Xi'an 710600, China.
FAU - Lu, Xiaochun
AU  - Lu X
AD  - National Time Service Center, Chinese Academy of Sciences, Shu Yuan Road, Xi'an 
      710600, China.
AD  - Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of 
      Sciences, Xi'an 710600, China.
AD  - School of Astronomy and Space Science, University of Chinese Academy of Sciences, 
      Yu Quan Road, Beijing 100049, China.
LA  - eng
GR  - 41674034, 41974032, 11903040/National Natural Science Foundation of China/
PT  - Journal Article
DEP - 20200815
PL  - Switzerland
TA  - Sensors (Basel)
JT  - Sensors (Basel, Switzerland)
JID - 101204366
SB  - IM
PMC - PMC7471991
OTO - NOTNLM
OT  - BDS
OT  - carrier phase observation
OT  - epoch-difference
OT  - orbital maneuvers
OT  - velocity estimation
COIS- The authors declare no conflict of interest.
EDAT- 2020/08/23 06:00
MHDA- 2020/08/23 06:01
PMCR- 2020/08/01
CRDT- 2020/08/23 06:00
PHST- 2020/07/03 00:00 [received]
PHST- 2020/08/01 00:00 [revised]
PHST- 2020/08/14 00:00 [accepted]
PHST- 2020/08/23 06:00 [entrez]
PHST- 2020/08/23 06:00 [pubmed]
PHST- 2020/08/23 06:01 [medline]
PHST- 2020/08/01 00:00 [pmc-release]
AID - s20164584 [pii]
AID - sensors-20-04584 [pii]
AID - 10.3390/s20164584 [doi]
PST - epublish
SO  - Sensors (Basel). 2020 Aug 15;20(16):4584. doi: 10.3390/s20164584.