Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Gary A. McGraw"'
Publikováno v:
Position, Navigation, and Timing Technologies in the 21st Century
GNSS signals can be blocked and reflected by nearby objects, such as buildings, walls, and vehicles. They can also be reflected by the ground and by water. These effects are the dominant source of GNSS positioning errors in dense urban environments,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15261f253b549248d330fc88d4e00276
https://doi.org/10.1002/9781119458449.ch22
https://doi.org/10.1002/9781119458449.ch22
In recent years, global navigation satellite system (GNSS) precise point positioning (PPP) has become a standard positioning technique for many applications with typically favourable open sky conditions, e.g. precision agriculture. Unfortunately, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c34365c949ddd721aff27cca94729587
Publikováno v:
Proceedings of the 31st International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2018).
Multi-frequency signals, broadcast by the next generation GNSS satellites, have led to the development of the Triple Carrier Ambiguity Resolution method. This method, which is based on the “gap-bridging” concept, is an extraordinarily simple appr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79dc0177ac4e92bf503e368451074003
https://doi.org/10.33012/2018.16036
https://doi.org/10.33012/2018.16036
Publikováno v:
PLANS
The poor signal visibility and continuity associated with urban environments together with the slow convergence/reconvergence time of Precise Point Positioning (PPP), usually makes PPP unsuitable for land navigation in cities. However, results based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3038646aecb750b41ca1633f45efe24f
https://igi.indrastra.com/items/show/19940
https://igi.indrastra.com/items/show/19940
Publikováno v:
Proceedings of the 29th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2016).
Many current high-end avionics installations utilize redundant Inertial Navigation Systems (INS) with very high quality Inertial Measurement Units (IMUs) in order to maintain high accuracy heading with integrity. Attitude and Heading Reference System
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::161aae2a9f4ccdbe49d049fa485b7bb8
https://doi.org/10.33012/2016.14603
https://doi.org/10.33012/2016.14603
Publikováno v:
The Precise Time and Time Interval Systems and Applications Meeting.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6ef52f6d0edf3c0a67110f4415b5489
https://doi.org/10.33012/2016.13144
https://doi.org/10.33012/2016.13144
Autor:
Gary A. McGraw
Publikováno v:
Navigation. 56:115-122
This paper develops a generalized framework for smoothing Global Positioning System (GPS) pseudorange measurements with carrier phase measurements. This framework, called 'Generalized Divergence-Free Smoothing', not only encompasses Dual Frequency Sm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08dae81223cc374e3987fd99727ff20e
https://doi.org/10.1002/j.2161-4296.2009.tb01748.x
https://doi.org/10.1002/j.2161-4296.2009.tb01748.x
Autor:
Gary A. McGraw, Ryan S.Y. Young
Publikováno v:
Navigation. 50:151-169
To achieve the navigational integrity required for civil aviation use of GPS, the GPS fault detection and exclusion (FDE) function is of considerable importance. In this paper, we propose a new FDE approach for tightly integrated GPS/inertial sensors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0bd0ea9bde630aee2ac06760a99961f
https://doi.org/10.1002/j.2161-4296.2003.tb00326.x
https://doi.org/10.1002/j.2161-4296.2003.tb00326.x
Publikováno v:
2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014.
Several aerial platforms rely on decimeter-level relative position accuracy for various applications including automatic takeoff and landing, precision targeting, and airborne refueling. For such applications, a Real Time Kinematic (RTK) GPS system p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9f281070d59c55c01a019874ec17553
https://doi.org/10.1109/plans.2014.6851490
https://doi.org/10.1109/plans.2014.6851490
Autor:
Gary A. McGraw, Patrick Y. Hwang
Publikováno v:
2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014.
Deceptive interference of Global Navigation Satellite System (GNSS) receivers, including deliberate spoofing of GNSS signals, is an increasing concern. Detection and isolation of deceptive interference signals from true GNSS signals is required to as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5e9350b1c18efe42dad4a47c65fcf67
https://doi.org/10.1109/plans.2014.6851386
https://doi.org/10.1109/plans.2014.6851386