Adaptive Gain Control Method of a Phase-Locked Loop for GNSS Carrier Signal Tracking
The global navigation satellite system (GNSS) has been widely used in both military and civil fields. This study focuses on enhancing the carrier tracking ability of the phase-locked loop (PLL) in GNSS receivers for high-dynamic application. The PLL is a very popular and practical approach for track...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2018/6841285 |
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| author | Zhibin Luo Jicheng Ding Lin Zhao |
| author_facet | Zhibin Luo Jicheng Ding Lin Zhao |
| author_sort | Zhibin Luo |
| collection | DOAJ |
| description | The global navigation satellite system (GNSS) has been widely used in both military and civil fields. This study focuses on enhancing the carrier tracking ability of the phase-locked loop (PLL) in GNSS receivers for high-dynamic application. The PLL is a very popular and practical approach for tracking the GNSS carrier signal which propagates in the form of electromagnetic wave. However, a PLL with constant coefficient would be suboptimal. Adaptive loop noise bandwidth techniques proposed by previous researches can improve PLL tracking behavior to some extent. This paper presents a novel PLL with an adaptive loop gain control filter (AGCF-PLL) that can provide an alternative. The mathematical model based on second- and third-order PLL was derived. The error characteristics of the AGCF-PLL were also derived and analyzed under different signal conditions, which mainly refers to the different combinations of carrier phase dynamic and signal strength. Based on error characteristic curves, the optimal loop gain control method has been achieved to minimize tracking error. Finally, the completely adaptive loop gain control algorithm was designed. Comparable test results and analysis using the new method, conventional PLL, FLL-assisted PLL, and FAB-LL demonstrate that the AGCF-PLL has stronger adaptability to high target movement dynamic. |
| format | Article |
| id | doaj-art-3fc6e15b56ea4b6e9c7ff3ec339fae4f |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-3fc6e15b56ea4b6e9c7ff3ec339fae4f2025-02-03T01:30:35ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772018-01-01201810.1155/2018/68412856841285Adaptive Gain Control Method of a Phase-Locked Loop for GNSS Carrier Signal TrackingZhibin Luo0Jicheng Ding1Lin Zhao2College of Automation, Harbin Engineering University, Harbin, ChinaCollege of Automation, Harbin Engineering University, Harbin, ChinaCollege of Automation, Harbin Engineering University, Harbin, ChinaThe global navigation satellite system (GNSS) has been widely used in both military and civil fields. This study focuses on enhancing the carrier tracking ability of the phase-locked loop (PLL) in GNSS receivers for high-dynamic application. The PLL is a very popular and practical approach for tracking the GNSS carrier signal which propagates in the form of electromagnetic wave. However, a PLL with constant coefficient would be suboptimal. Adaptive loop noise bandwidth techniques proposed by previous researches can improve PLL tracking behavior to some extent. This paper presents a novel PLL with an adaptive loop gain control filter (AGCF-PLL) that can provide an alternative. The mathematical model based on second- and third-order PLL was derived. The error characteristics of the AGCF-PLL were also derived and analyzed under different signal conditions, which mainly refers to the different combinations of carrier phase dynamic and signal strength. Based on error characteristic curves, the optimal loop gain control method has been achieved to minimize tracking error. Finally, the completely adaptive loop gain control algorithm was designed. Comparable test results and analysis using the new method, conventional PLL, FLL-assisted PLL, and FAB-LL demonstrate that the AGCF-PLL has stronger adaptability to high target movement dynamic.http://dx.doi.org/10.1155/2018/6841285 |
| spellingShingle | Zhibin Luo Jicheng Ding Lin Zhao Adaptive Gain Control Method of a Phase-Locked Loop for GNSS Carrier Signal Tracking International Journal of Antennas and Propagation |
| title | Adaptive Gain Control Method of a Phase-Locked Loop for GNSS Carrier Signal Tracking |
| title_full | Adaptive Gain Control Method of a Phase-Locked Loop for GNSS Carrier Signal Tracking |
| title_fullStr | Adaptive Gain Control Method of a Phase-Locked Loop for GNSS Carrier Signal Tracking |
| title_full_unstemmed | Adaptive Gain Control Method of a Phase-Locked Loop for GNSS Carrier Signal Tracking |
| title_short | Adaptive Gain Control Method of a Phase-Locked Loop for GNSS Carrier Signal Tracking |
| title_sort | adaptive gain control method of a phase locked loop for gnss carrier signal tracking |
| url | http://dx.doi.org/10.1155/2018/6841285 |
| work_keys_str_mv | AT zhibinluo adaptivegaincontrolmethodofaphaselockedloopforgnsscarriersignaltracking AT jichengding adaptivegaincontrolmethodofaphaselockedloopforgnsscarriersignaltracking AT linzhao adaptivegaincontrolmethodofaphaselockedloopforgnsscarriersignaltracking |