Assessment of current dme performance and potential to support a future a-PNT solution

Vitan, Valeriu; Berz, Gerhard; Solomina, Natalia

doi:10.1109/dasc.2015.7311526

Cited by 2 publications

(5 citation statements)

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“…Hence, there is a need of alternate terrestrial system to support RNP 0.3. Results published by Vitan et al [4] using data recorded during flight shows that DME/DME or multi-DME approach position solutions has HPE of 0.3 nmi. Hence, DME/DME or multi-DME approach can support RNP 0.5, but not RNP 0.3 [4].…”

Section: Introductionmentioning

confidence: 94%

“…Results published by Vitan et al [4] using data recorded during flight shows that DME/DME or multi-DME approach position solutions has HPE of 0.3 nmi. Hence, DME/DME or multi-DME approach can support RNP 0.5, but not RNP 0.3 [4]. To assess the DME/DME based horizontal position solution, terminal area (30 nmi radius) of Frankfurt and Munich airport is considered, as shown in figure (1).…”

Section: Introductionmentioning

confidence: 94%

“…In order to maintain 3− nmi separation RNP 0.3 is required [5]. Based on target environment RNP is specified in terms of TSE as shown in figure (4). TSE is the root sum squared of NSE (Navigation System Error), PDE (Path Definition Error) and FTE (Flight Technical Error) given by the equation (1).…”

Section: Rnp 03mentioning

confidence: 99%

“…The error in the horizontal position fix [4] is given by equation (8). Where, e p is the horizontal position error, e 1 and e 2 are the range error from the two DME stations in the horizontal plane, while α is the angle between two vectors connecting the two DME stations with the aircraft.…”

Section: Horizontal Position Error (Hpe)mentioning

confidence: 99%

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Demand-based Placement of LDACS Ground Stations to Achieve RNP 0.3 Accuracy for APNT

Kumar¹,

Battista²,

Osechas³

2017

Proceedings of the 2017 International Technical Meeting of the Institute of Navigation

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Regions with dense air traffic has lower separation between aircrafts to maintain the throughput. Terminal area generally requires high throughput and some of the airports need to maintain 3− nmi separation between two aircrafts. To provide 3− nmi separation RNP 0.3 is required. In this paper we propose two possible ways to fulfill RNP 0.3 NSE requirement using LDACS as an alternate system. The first way is to use LDACS in standalone configuration and the other way is to use a hybrid configuration, where position solution is obtained using LDACS combined with DME.The results show that both the proposed methods, standalone and hybrid configuration fulfill RNP 0.3 NSE requirement. Where standalone configuration is more accurate than hybrid, due to the low ranging error of LDACS system. For our analysis the surveillance data for terminal area of Munich and Frankfurt airports were used. In standalone configuration 5 LDACS stations for Frankfurt and 6 LDACS stations for Munich are sufficient to fulfill RNP 0.3 NSE requirement. In hybrid mode both Frankfurt and Munich only need 3 LDACS stations.

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Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 94%

Section: Rnp 03mentioning

confidence: 99%

Section: Horizontal Position Error (Hpe)mentioning

confidence: 99%

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Demand-based Placement of LDACS Ground Stations to Achieve RNP 0.3 Accuracy for APNT

Kumar¹,

Battista²,

Osechas³

2017

Proceedings of the 2017 International Technical Meeting of the Institute of Navigation

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“…Previous work (Vitan et al, 2015) assessed the DME performance of both DME/DME and multi-DMEs, showing that the multi-DMEs solution has clear benefits. However, it is unlikely to provide similar benefits at low altitudes, due to the less-abundant ranging sources.…”

Section: Introductionmentioning

confidence: 99%

Multi-DMEs for alternative position, navigation and timing (A-PNT)

et al. 2021

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Distance measuring equipment (DME/DME) as the main reversionary method provides alternative positioning, navigation and timing (A-PNT) services for use during a Global Navigation Satellite System (GNSS) outage. Considering the geometry limitation of DME/DME, multi-DMEs with better geometry can be used to increase the accuracy and integrity performance of positioning. This paper discusses the opportunities and challenges related to use of multi-DMEs as an alternate source of positioning, navigation and timing. To support the performance for A-PNT, the basic idea is considering the existing installed equipment. In this paper, barometer altimeter and TACAN are used to help improve the performance of A-PNT provided by multi-DMEs both in accuracy and integrity. Based on the database of EUROCONTROL, the test results demonstrate that 79⋅7% of a reference area roughly matching with the continental European locations achieve RNP 1 using multi-DMEs when the DME measurement accuracy is 0⋅2 NM (95%). When the DME measurement accuracy is 0⋅1 NM (95%), 87⋅9% of the reference area can achieve RNP 1 using multi-DMEs. The usage of barometer/TACAN measurements aided multi-DMEs improves the performance of the accuracy and integrity monitoring.

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Assessment of current dme performance and potential to support a future a-PNT solution

Cited by 2 publications

References 1 publication

Demand-based Placement of LDACS Ground Stations to Achieve RNP 0.3 Accuracy for APNT

Demand-based Placement of LDACS Ground Stations to Achieve RNP 0.3 Accuracy for APNT

Multi-DMEs for alternative position, navigation and timing (A-PNT)

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