Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS
The Ground Based Augmentation System (GBAS) is a landing system for aircraft based on differential corrections for the signals of Global Navigation Satellite Systems (GNSS), such as GPS or Galileo. The main impact on the availability of current single frequency systems results from the necessary pro...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/4326018 |
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| author | Michael Felux Mihaela-Simona Circiu Jiyun Lee Florian Holzapfel |
| author_facet | Michael Felux Mihaela-Simona Circiu Jiyun Lee Florian Holzapfel |
| author_sort | Michael Felux |
| collection | DOAJ |
| description | The Ground Based Augmentation System (GBAS) is a landing system for aircraft based on differential corrections for the signals of Global Navigation Satellite Systems (GNSS), such as GPS or Galileo. The main impact on the availability of current single frequency systems results from the necessary protection against ionospheric gradients. With the introduction of Galileo and the latest generation of GPS satellites, a second frequency is available for aeronautical navigation. Dual frequency methods allow forming of ionospheric free combinations of the signals, eliminating a large part of the ionospheric threats to GBAS. However, the combination of several signals increases the noise in the position solution and in the calculation of error bounds. We, therefore, developed a method to base positioning algorithms on single frequency measurements and use the second frequency only for monitoring purposes. In this paper, we describe a detailed derivation of the monitoring scheme and discuss its implications for the use in an aviation context. |
| format | Article |
| id | doaj-art-a672d8c4590844eeb00df37ab3bc25f9 |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-a672d8c4590844eeb00df37ab3bc25f92025-02-03T01:03:09ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742017-01-01201710.1155/2017/43260184326018Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBASMichael Felux0Mihaela-Simona Circiu1Jiyun Lee2Florian Holzapfel3German Aerospace Center (DLR), Münchener Straße 20, 82234 Weßling, GermanyGerman Aerospace Center (DLR), Münchener Straße 20, 82234 Weßling, GermanyKorea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of KoreaInstitute of Flight System Dynamics, Technische Universität München (TUM), Boltzmannstraße 15, 85748 Garching, GermanyThe Ground Based Augmentation System (GBAS) is a landing system for aircraft based on differential corrections for the signals of Global Navigation Satellite Systems (GNSS), such as GPS or Galileo. The main impact on the availability of current single frequency systems results from the necessary protection against ionospheric gradients. With the introduction of Galileo and the latest generation of GPS satellites, a second frequency is available for aeronautical navigation. Dual frequency methods allow forming of ionospheric free combinations of the signals, eliminating a large part of the ionospheric threats to GBAS. However, the combination of several signals increases the noise in the position solution and in the calculation of error bounds. We, therefore, developed a method to base positioning algorithms on single frequency measurements and use the second frequency only for monitoring purposes. In this paper, we describe a detailed derivation of the monitoring scheme and discuss its implications for the use in an aviation context.http://dx.doi.org/10.1155/2017/4326018 |
| spellingShingle | Michael Felux Mihaela-Simona Circiu Jiyun Lee Florian Holzapfel Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS International Journal of Aerospace Engineering |
| title | Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS |
| title_full | Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS |
| title_fullStr | Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS |
| title_full_unstemmed | Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS |
| title_short | Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAS |
| title_sort | ionospheric gradient threat mitigation in future dual frequency gbas |
| url | http://dx.doi.org/10.1155/2017/4326018 |
| work_keys_str_mv | AT michaelfelux ionosphericgradientthreatmitigationinfuturedualfrequencygbas AT mihaelasimonacirciu ionosphericgradientthreatmitigationinfuturedualfrequencygbas AT jiyunlee ionosphericgradientthreatmitigationinfuturedualfrequencygbas AT florianholzapfel ionosphericgradientthreatmitigationinfuturedualfrequencygbas |