Enhanced Distance Measuring Equipment Carrier Phase

Enhanced Distance Measuring Equipment Carrier Phase

Bibliographic Details
Main Author: Li, Kuangmin
Language:English
Published: Ohio University / OhioLINK 2014
Subjects:
Aerospace Engineering
Electrical Engineering
Avionics
PBN
APNT
Distance Measuring Equipment
enhanced DME
Carrier phase
Allan deviation
NDFT
PLL
Precise velocity
Carrier smoothed pulse range
Pulse-range-minus-carrier
Pulse noise multipath algorithm
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1416581585
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-ohiou14165815852021-08-03T06:28:08Z Enhanced Distance Measuring Equipment Carrier Phase Li, Kuangmin Aerospace Engineering Electrical Engineering Avionics PBN APNT Distance Measuring Equipment enhanced DME Carrier phase Allan deviation NDFT PLL Precise velocity Carrier smoothed pulse range Pulse-range-minus-carrier Pulse noise multipath algorithm Next Generation aviation, in short “NextGen,” requires an Alternate Positioning Navigation and Timing (APNT) system to back up the Global Navigation Satellite Systems (GNSS). Distance Measuring Equipment (DME) is a favorable APNT candidate but likely needs to be upgraded to enhanced Distance Measuring Equipment (eDME) to support the stringent NextGen aeronautical navigation requirements. This dissertation proposes, researches, and demonstrates eDME carrier phase, a key enabling technology that can dramatically improve the eDME system performance. eDME carrier phase provides line-of-sight displacement measurements with mm-level accuracy.After introducing the eDME carrier phase concept, this dissertation discusses the required changes for airborne and ground equipment. A novel flight test methodology is presented that allows evaluation of the eDME carrier phase performance without requiring changes to existing equipment. A spectrum-based carrier phase acquisition algorithm is presented next. Combined with several interference-mitigation techniques, this acquisition method demonstrates fault-free acquisition.Furthermore, a phase-locked loop (PLL) is designed for eDME carrier phase. A correction term is first proposed to modify the conventional PLL design to reduce the undesired loop stability and bandwidth changes when the loop noise equivalent bandwidth is close to the Nyquist frequency of the loop. This modified PLL is then further adapted to accommodate eDME’s random pulse timing. The carrier phase tracking results show dm-level errors for 110-km straight and level flights and for various banking maneuvers up to 60 degrees. These errors are further characterized and quantified.eDME carrier phase can be used in combination with the eDME pulse range to significantly improve the accuracy and integrity of the DME system. Several algorithms are introduced and the resulting improvement of the eDME accuracy and integrity performance are illustrated. Finally, DME-Next is proposed as a most feasible eDME architecture that fully utilizes the benefits of eDME carrier phase and demonstrates performance sufficient to meet the most stringent NextGen APNT navigationrequirements. 2014 English text Ohio University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1416581585 http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1416581585 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Aerospace Engineering
Electrical Engineering
Avionics
PBN
APNT
Distance Measuring Equipment
enhanced DME
Carrier phase
Allan deviation
NDFT
PLL
Precise velocity
Carrier smoothed pulse range
Pulse-range-minus-carrier
Pulse noise multipath algorithm
spellingShingle Aerospace Engineering
Electrical Engineering
Avionics
PBN
APNT
Distance Measuring Equipment
enhanced DME
Carrier phase
Allan deviation
NDFT
PLL
Precise velocity
Carrier smoothed pulse range
Pulse-range-minus-carrier
Pulse noise multipath algorithm
Li, Kuangmin
Enhanced Distance Measuring Equipment Carrier Phase
author Li, Kuangmin
author_facet Li, Kuangmin
author_sort Li, Kuangmin
title Enhanced Distance Measuring Equipment Carrier Phase
title_short Enhanced Distance Measuring Equipment Carrier Phase
title_full Enhanced Distance Measuring Equipment Carrier Phase
title_fullStr Enhanced Distance Measuring Equipment Carrier Phase
title_full_unstemmed Enhanced Distance Measuring Equipment Carrier Phase
title_sort enhanced distance measuring equipment carrier phase
publisher Ohio University / OhioLINK
publishDate 2014
url http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1416581585
work_keys_str_mv AT likuangmin enhanceddistancemeasuringequipmentcarrierphase
_version_ 1719437207541907456

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