Characterization of GNSS Signals Tracked by the iGMAS Network Considering Recent BDS-3 Satellites
The international GNSS monitoring and assessment system (iGMAS) tracking network has been established by China to track multi-GNSS satellites. A key feature of iGMAS stations is the capability to fully track new navigation signals from the recently deployed BDS-3 satellites. In addition to the B1I a...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-11-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/10/11/1736 |
| _version_ | 1818998626619228160 |
|---|---|
| author | Xin Xie Rongxin Fang Tao Geng Guangxing Wang Qile Zhao Jingnan Liu |
| author_facet | Xin Xie Rongxin Fang Tao Geng Guangxing Wang Qile Zhao Jingnan Liu |
| author_sort | Xin Xie |
| collection | DOAJ |
| description | The international GNSS monitoring and assessment system (iGMAS) tracking network has been established by China to track multi-GNSS satellites. A key feature of iGMAS stations is the capability to fully track new navigation signals from the recently deployed BDS-3 satellites. In addition to the B1I and B3I signals inherited from BDS-2 satellites, the BDS-3 satellites are capable of transmitting new open service signals, including B1C at 1575.42 MHz, B2a at 1176.45 MHz, and B2b at 1207.14 MHz. In this contribution, we present a comprehensive analysis and characterization of GNSS signals tracked by different receivers and antennas equipped in the iGMAS network, especially as they relate to BDS-3 signals. Signal characteristics are analyzed in terms of the carrier-to-noise density ratio for the different signals as measured by the receiver, as well as pseudo-range noise and multipath. Special attention is given to discussion of the satellite-induced code bias, which has been identified to exist in the code observations of BDS-2, and the inter-frequency clock bias (IFCB), which has been observed in the triple-frequency carrier phase combinations of GPS Block IIF and BDS-2 satellites. The results indicate that the satellite-induced code bias is negligible for all signals of BDS-3 satellites, while small IFCB variations with peak amplitudes of about 1 cm can be recognized in BDS-3 triple-carrier combinations. |
| first_indexed | 2024-12-20T22:04:31Z |
| format | Article |
| id | doaj.art-14a435507bb8401eb7a0a388270b5a73 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-12-20T22:04:31Z |
| publishDate | 2018-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-14a435507bb8401eb7a0a388270b5a732022-12-21T19:25:17ZengMDPI AGRemote Sensing2072-42922018-11-011011173610.3390/rs10111736rs10111736Characterization of GNSS Signals Tracked by the iGMAS Network Considering Recent BDS-3 SatellitesXin Xie0Rongxin Fang1Tao Geng2Guangxing Wang3Qile Zhao4Jingnan Liu5GNSS Research Center, Wuhan University, Wuhan 430079, ChinaGNSS Research Center, Wuhan University, Wuhan 430079, ChinaGNSS Research Center, Wuhan University, Wuhan 430079, ChinaGNSS Research Center, Wuhan University, Wuhan 430079, ChinaGNSS Research Center, Wuhan University, Wuhan 430079, ChinaGNSS Research Center, Wuhan University, Wuhan 430079, ChinaThe international GNSS monitoring and assessment system (iGMAS) tracking network has been established by China to track multi-GNSS satellites. A key feature of iGMAS stations is the capability to fully track new navigation signals from the recently deployed BDS-3 satellites. In addition to the B1I and B3I signals inherited from BDS-2 satellites, the BDS-3 satellites are capable of transmitting new open service signals, including B1C at 1575.42 MHz, B2a at 1176.45 MHz, and B2b at 1207.14 MHz. In this contribution, we present a comprehensive analysis and characterization of GNSS signals tracked by different receivers and antennas equipped in the iGMAS network, especially as they relate to BDS-3 signals. Signal characteristics are analyzed in terms of the carrier-to-noise density ratio for the different signals as measured by the receiver, as well as pseudo-range noise and multipath. Special attention is given to discussion of the satellite-induced code bias, which has been identified to exist in the code observations of BDS-2, and the inter-frequency clock bias (IFCB), which has been observed in the triple-frequency carrier phase combinations of GPS Block IIF and BDS-2 satellites. The results indicate that the satellite-induced code bias is negligible for all signals of BDS-3 satellites, while small IFCB variations with peak amplitudes of about 1 cm can be recognized in BDS-3 triple-carrier combinations.https://www.mdpi.com/2072-4292/10/11/1736iGMASBDS-3satellite-induced code biasinter-frequency clock biasmultipath combinationtriple-frequency carrier phase combination |
| spellingShingle | Xin Xie Rongxin Fang Tao Geng Guangxing Wang Qile Zhao Jingnan Liu Characterization of GNSS Signals Tracked by the iGMAS Network Considering Recent BDS-3 Satellites Remote Sensing iGMAS BDS-3 satellite-induced code bias inter-frequency clock bias multipath combination triple-frequency carrier phase combination |
| title | Characterization of GNSS Signals Tracked by the iGMAS Network Considering Recent BDS-3 Satellites |
| title_full | Characterization of GNSS Signals Tracked by the iGMAS Network Considering Recent BDS-3 Satellites |
| title_fullStr | Characterization of GNSS Signals Tracked by the iGMAS Network Considering Recent BDS-3 Satellites |
| title_full_unstemmed | Characterization of GNSS Signals Tracked by the iGMAS Network Considering Recent BDS-3 Satellites |
| title_short | Characterization of GNSS Signals Tracked by the iGMAS Network Considering Recent BDS-3 Satellites |
| title_sort | characterization of gnss signals tracked by the igmas network considering recent bds 3 satellites |
| topic | iGMAS BDS-3 satellite-induced code bias inter-frequency clock bias multipath combination triple-frequency carrier phase combination |
| url | https://www.mdpi.com/2072-4292/10/11/1736 |
| work_keys_str_mv | AT xinxie characterizationofgnsssignalstrackedbytheigmasnetworkconsideringrecentbds3satellites AT rongxinfang characterizationofgnsssignalstrackedbytheigmasnetworkconsideringrecentbds3satellites AT taogeng characterizationofgnsssignalstrackedbytheigmasnetworkconsideringrecentbds3satellites AT guangxingwang characterizationofgnsssignalstrackedbytheigmasnetworkconsideringrecentbds3satellites AT qilezhao characterizationofgnsssignalstrackedbytheigmasnetworkconsideringrecentbds3satellites AT jingnanliu characterizationofgnsssignalstrackedbytheigmasnetworkconsideringrecentbds3satellites |