Hybrid Carrier Tracking with Decoupled Local Filters in Multi-Frequency GNSS Receivers
The collaborative efforts of multi-frequency receivers have proven to be a significant advantage in the challenging environments of global navigation satellite system carrier tracking. This paper delves into the exploration of multi-carrier hybrid tracking, employing both phase-locked loop and frequ...
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| Format: | Article |
| Language: | English |
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Institute of Navigation
2024-12-01
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| Series: | Navigation |
| Online Access: | https://navi.ion.org/content/71/4/navi.672 |
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| _version_ | 1850112270177140736 |
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| author | Rong Yang Jihong Huang Xingqun Zhan |
| author_facet | Rong Yang Jihong Huang Xingqun Zhan |
| author_sort | Rong Yang |
| collection | DOAJ |
| description | The collaborative efforts of multi-frequency receivers have proven to be a significant advantage in the challenging environments of global navigation satellite system carrier tracking. This paper delves into the exploration of multi-carrier hybrid tracking, employing both phase-locked loop and frequency-locked loop observations to maximize tracking capability. This hybrid approach conducts distributed phase tracking and centralized Doppler frequency tracking within decoupled local filters to accommodate the frequency dispersion and reduce dimensionality. Subsequently, global assimilation is performed to adjust filter weights for performance optimization. Theoretical analysis affirms that this hybrid design can achieve tracking performance close to optimality when compared with classic centralized estimation, significantly outperforming fully distributed approaches. Additionally, simulations of ionospheric scintillation validate the effectiveness of the proposed hybrid carrier tracking design. |
| format | Article |
| id | doaj-art-7e148247641f480499d9d043dfa4c6ab |
| institution | OA Journals |
| issn | 2161-4296 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Institute of Navigation |
| record_format | Article |
| series | Navigation |
| spelling | doaj-art-7e148247641f480499d9d043dfa4c6ab2025-08-20T02:37:25ZengInstitute of NavigationNavigation2161-42962024-12-0171410.33012/navi.672navi.672Hybrid Carrier Tracking with Decoupled Local Filters in Multi-Frequency GNSS ReceiversRong YangJihong HuangXingqun ZhanThe collaborative efforts of multi-frequency receivers have proven to be a significant advantage in the challenging environments of global navigation satellite system carrier tracking. This paper delves into the exploration of multi-carrier hybrid tracking, employing both phase-locked loop and frequency-locked loop observations to maximize tracking capability. This hybrid approach conducts distributed phase tracking and centralized Doppler frequency tracking within decoupled local filters to accommodate the frequency dispersion and reduce dimensionality. Subsequently, global assimilation is performed to adjust filter weights for performance optimization. Theoretical analysis affirms that this hybrid design can achieve tracking performance close to optimality when compared with classic centralized estimation, significantly outperforming fully distributed approaches. Additionally, simulations of ionospheric scintillation validate the effectiveness of the proposed hybrid carrier tracking design.https://navi.ion.org/content/71/4/navi.672 |
| spellingShingle | Rong Yang Jihong Huang Xingqun Zhan Hybrid Carrier Tracking with Decoupled Local Filters in Multi-Frequency GNSS Receivers Navigation |
| title | Hybrid Carrier Tracking with Decoupled Local Filters in Multi-Frequency GNSS Receivers |
| title_full | Hybrid Carrier Tracking with Decoupled Local Filters in Multi-Frequency GNSS Receivers |
| title_fullStr | Hybrid Carrier Tracking with Decoupled Local Filters in Multi-Frequency GNSS Receivers |
| title_full_unstemmed | Hybrid Carrier Tracking with Decoupled Local Filters in Multi-Frequency GNSS Receivers |
| title_short | Hybrid Carrier Tracking with Decoupled Local Filters in Multi-Frequency GNSS Receivers |
| title_sort | hybrid carrier tracking with decoupled local filters in multi frequency gnss receivers |
| url | https://navi.ion.org/content/71/4/navi.672 |
| work_keys_str_mv | AT rongyang hybridcarriertrackingwithdecoupledlocalfiltersinmultifrequencygnssreceivers AT jihonghuang hybridcarriertrackingwithdecoupledlocalfiltersinmultifrequencygnssreceivers AT xingqunzhan hybridcarriertrackingwithdecoupledlocalfiltersinmultifrequencygnssreceivers |