Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Richard J. Hartnett"'
Publikováno v:
Proceedings of the 33rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2020).
With high signal availabilities, capable/robust receivers, and well-populated satellite constellations, GNSS users typically believe that the output of their receiver is correct; however, the increasing existence of inexpensive L-band hardware has so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6daa68ff58d6f283f62558095e52cafd
https://doi.org/10.33012/2020.17726
https://doi.org/10.33012/2020.17726
Publikováno v:
PLANS
Celestial navigation has been guiding the mariner for hundreds of years; more recently, the GPS (GNSS, in general) has made 3-D positioning and precise time a commodity for everyday use. With an increased awareness of the vulnerabilities associated w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b81d632280715a0694b9a246ab6bad2
https://doi.org/10.1109/plans46316.2020.9109928
https://doi.org/10.1109/plans46316.2020.9109928
Publikováno v:
Journal of Navigation. 70:1041-1061
Code phase Global Navigation Satellite System (GNSS) positioning performance is often described by the Geometric or Position Dilution of Precision (GDOP or PDOP), functions of the number of satellites employed in the solution and their geometry. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7b83840b59866f21585bb1742f1373b
https://doi.org/10.1017/s0373463317000248
https://doi.org/10.1017/s0373463317000248
Publikováno v:
Proceedings of the 32nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2019).
GNSS receivers convert the measured pseudoranges from the visible and viable GNSS satellites into an estimate of the position and clock offset of the receiver. The accuracy of the resulting solution can be described statistically by its error covaria
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1399f3f80b62a568d54951c2e5998cb3
https://doi.org/10.33012/2019.16869
https://doi.org/10.33012/2019.16869
Publikováno v:
The International Technical Meeting of the The Institute of Navigation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c97a25e1c02de303cae2492150975cb
https://doi.org/10.33012/2019.16678
https://doi.org/10.33012/2019.16678
Publikováno v:
Proceedings of the 31st International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2018).
GNSS are well known to be accurate providers of position information across the globe. Because of high signal availabilities, robust receivers, and well-populated constellations, operators typically believe that the location information provided by t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4015b5fa1a146e4138dd8fa39de67ca4
https://doi.org/10.33012/2018.16011
https://doi.org/10.33012/2018.16011
Autor:
Joseph D. Siciliano, Kelly C. Seals, Richard J. Hartnett, Peter F. Swaszek, Rebecca M. A. Swaszek
Publikováno v:
The International Technical Meeting of the The Institute of Navigation.
As climate change will likely lead to more of a human presence in the higher latitudes, it is important to consider how well our safety-critical positioning systems work near the poles. The orbits of the GPS (and other GNSS) preclude satellites with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e73b2048b4968a5c1b853643993b83cb
https://doi.org/10.33012/2018.15549
https://doi.org/10.33012/2018.15549
Publikováno v:
Proceedings of the 30th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2017).
Code phase GNSS receivers convert the measured satellite pseudoranges into estimates of the position and clock offset of the receiver, typically via an iterative, linearized least squares method. Since the pseudoranges themselves are noisy, the resul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba564bde67050548d256cce5cb123db9
https://doi.org/10.33012/2017.15391
https://doi.org/10.33012/2017.15391
Publikováno v:
Proceedings of the 30th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2017).
GNSS are well known to be accurate providers of position information across the globe. Because of high signal availabilities, capable/robust receivers, and well-populated satellite constellations, operators typically believe that the location informa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f68dbfb2cc45ae86c1160e976b5eadba
https://doi.org/10.33012/2017.15338
https://doi.org/10.33012/2017.15338
Publikováno v:
Proceedings of the 29th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2016).
GPS receivers convert the measured pseudoranges from the visible GPS satellites into an estimate of the position and clock offset of the receiver. For various reasons receivers might only track and process a subset of the visible satellites. It would
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::402f5a3e376e5977935cd59baadc979a
https://doi.org/10.33012/2016.14748
https://doi.org/10.33012/2016.14748