An Innovative Architecture of UTC GPS/INS System with Improved Performance under Severe Jamming
Ultratightly coupled (UTC) architecture is believed to be the best architecture for Global Positioning System (GPS) and Inertial Navigation System (INS) integration system due to the advanced data fusion strategy and effective mutual assistance between the subsystems. However the performance of UTC...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Discrete Dynamics in Nature and Society |
| Online Access: | http://dx.doi.org/10.1155/2014/185618 |
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| author | Xueyun Wang Jingjuan Zhang Wei Wang Pengyu Gao |
| author_facet | Xueyun Wang Jingjuan Zhang Wei Wang Pengyu Gao |
| author_sort | Xueyun Wang |
| collection | DOAJ |
| description | Ultratightly coupled (UTC) architecture is believed to be the best architecture for Global Positioning System (GPS) and Inertial Navigation System (INS) integration system due to the advanced data fusion strategy and effective mutual assistance between the subsystems. However the performance of UTC GPS/INS system will be degraded by severe jamming interference, especially when low-grade inertial measurement unit (IMU) is used. To solve this problem an innovative architecture of UTC GPS/INS system is proposed. Since GPS receiver’s antijamming ability is closely related to tracking loop bandwidth, adaptive tracking loop bandwidth based on the fuzzy logics is proposed to enhance antijamming ability for GPS receiver. The bandwidth will be adapted through a fuzzy logic controller according to the calculated carrier to noise intensity ratio (C/N0). Moreover, fuzzy adaptive integration Kalman filter (IKF) is developed to improve estimation accuracy of IKF when measurement noises change. A simulation platform is established to evaluate the innovative architecture and results demonstrate that the proposed scheme improves navigation performance significantly under severe jamming conditions. |
| format | Article |
| id | doaj-art-739b73fb16fe4aab966eb4e8cf123a6c |
| institution | Kabale University |
| issn | 1026-0226 1607-887X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Discrete Dynamics in Nature and Society |
| spelling | doaj-art-739b73fb16fe4aab966eb4e8cf123a6c2025-02-03T01:02:48ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2014-01-01201410.1155/2014/185618185618An Innovative Architecture of UTC GPS/INS System with Improved Performance under Severe JammingXueyun Wang0Jingjuan Zhang1Wei Wang2Pengyu Gao3School of Instrument Science and Opto-Electronics Engineering, Beihang University, Beijing 100191, ChinaSchool of Instrument Science and Opto-Electronics Engineering, Beihang University, Beijing 100191, ChinaSchool of Instrument Science and Opto-Electronics Engineering, Beihang University, Beijing 100191, ChinaSchool of Instrument Science and Opto-Electronics Engineering, Beihang University, Beijing 100191, ChinaUltratightly coupled (UTC) architecture is believed to be the best architecture for Global Positioning System (GPS) and Inertial Navigation System (INS) integration system due to the advanced data fusion strategy and effective mutual assistance between the subsystems. However the performance of UTC GPS/INS system will be degraded by severe jamming interference, especially when low-grade inertial measurement unit (IMU) is used. To solve this problem an innovative architecture of UTC GPS/INS system is proposed. Since GPS receiver’s antijamming ability is closely related to tracking loop bandwidth, adaptive tracking loop bandwidth based on the fuzzy logics is proposed to enhance antijamming ability for GPS receiver. The bandwidth will be adapted through a fuzzy logic controller according to the calculated carrier to noise intensity ratio (C/N0). Moreover, fuzzy adaptive integration Kalman filter (IKF) is developed to improve estimation accuracy of IKF when measurement noises change. A simulation platform is established to evaluate the innovative architecture and results demonstrate that the proposed scheme improves navigation performance significantly under severe jamming conditions.http://dx.doi.org/10.1155/2014/185618 |
| spellingShingle | Xueyun Wang Jingjuan Zhang Wei Wang Pengyu Gao An Innovative Architecture of UTC GPS/INS System with Improved Performance under Severe Jamming Discrete Dynamics in Nature and Society |
| title | An Innovative Architecture of UTC GPS/INS System with Improved Performance under Severe Jamming |
| title_full | An Innovative Architecture of UTC GPS/INS System with Improved Performance under Severe Jamming |
| title_fullStr | An Innovative Architecture of UTC GPS/INS System with Improved Performance under Severe Jamming |
| title_full_unstemmed | An Innovative Architecture of UTC GPS/INS System with Improved Performance under Severe Jamming |
| title_short | An Innovative Architecture of UTC GPS/INS System with Improved Performance under Severe Jamming |
| title_sort | innovative architecture of utc gps ins system with improved performance under severe jamming |
| url | http://dx.doi.org/10.1155/2014/185618 |
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