Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Suneel I. Sheikh"'
Autor:
Suneel I. Sheikh
Publikováno v:
Position, Navigation, and Timing Technologies in the 21st Century
Recent analysis, scientific discoveries, and technological developments have moved the concept of using variable, celestial sources as navigation aids for spacecraft from an idea to a foreseeable reality. Variable celestial sources emit fluctuating r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7663b1eda7ed09ec7a79ba357450350
https://doi.org/10.1002/9781119458555.ch52
https://doi.org/10.1002/9781119458555.ch52
Publikováno v:
ASCEND 2021.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::842a8b721fc270952f87ef4cd59cdc93
https://doi.org/10.2514/6.2021-4025
https://doi.org/10.2514/6.2021-4025
Autor:
Chuck S. Hisamoto, Suneel I. Sheikh
Publikováno v:
Journal of Guidance, Control, and Dynamics. 38:1765-1774
As the future progresses for space exploration endeavors, spacecraft that are capable of autonomously determining their position and velocity will provide clear navigation advances to mission operations. Thus, new techniques for determining spacecraf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9bb98290900353d6247fad6ba5a4682
https://doi.org/10.2514/1.g001008
https://doi.org/10.2514/1.g001008
Publikováno v:
Navigation. 58:165-186
Pulsars are unique celestial sources that produce distinctive, periodic signals. Since their discovery, they have been considered as potential navigation aids and timing beacons to form a reference coordinate system and universal time scale. Further
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64da522e153458cb4b6fc40c9f3f8124
https://doi.org/10.1002/j.2161-4296.2011.tb01799.x
https://doi.org/10.1002/j.2161-4296.2011.tb01799.x
Autor:
Darryll J. Pines, Suneel I. Sheikh
Publikováno v:
Navigation. 53:149-166
The use of pulsars for spacecraft position determination has been considered since their discovery. These celestial sources provide unique signals that can be detected by sensors placed onboard spacecraft. Upon sufficient detection and processing, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::854569956b973c40efcbd12369ea65fd
https://doi.org/10.1002/j.2161-4296.2006.tb00380.x
https://doi.org/10.1002/j.2161-4296.2006.tb00380.x
Autor:
Darryll J. Pines, Michael T. Wolff, Suneel I. Sheikh, Paul S. Ray, Kent S. Wood, M. N. Lovellette
Publikováno v:
Journal of Guidance, Control, and Dynamics. 29:49-63
The feasibility of determining spacecraft time and position using x-ray pulsars is explored. Pulsars are rapidly rotating neutron stars that generate pulsed electromagnetic radiation. A detailed analysis of eight x-ray pulsars is presented to quantif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f13795572efe6f74d7fd11d0c18ff01
https://doi.org/10.2514/1.13331
https://doi.org/10.2514/1.13331
Publikováno v:
Nanophotonics and Macrophotonics for Space Environments VI.
Currently, there is considerable interest in developing technologies that will allow the use of high-energy photon measurements from celestial X-ray sources for deep space relative navigation. The impetus for this is to reduce operational costs in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8c8ba430666577d0b83a998fdd06f50
https://doi.org/10.1117/12.935082
https://doi.org/10.1117/12.935082
Autor:
Robert J. Knuesel, Daniel S. Hedin, Daniel T. Kollmann, Nicholas A. Giudice, Patrick A. Lichter, Shane M. Anderson, Timothy H. Riehle, Suneel I. Sheikh
Publikováno v:
EMBC
Indoor navigation technology is needed to support seamless mobility for the visually impaired. This paper describes the construction of and evaluation of a navigation system that infers the users' location using only magnetic sensing. It is well know
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15f914e48c4b5ab1faf89590ca10ec59
https://doi.org/10.1109/embc.2012.6346342
https://doi.org/10.1109/embc.2012.6346342
Autor:
Suneel I. Sheikh, John P. Condon, Daniel S. Hedin, Shane M. Anderson, Patrick A. Lichter, Timothy H. Riehle
Publikováno v:
EMBC
A wide assortment of technologies have been proposed to construct indoor navigation services for the blind and vision impaired. Proximity-based systems and multilateration systems have been successfully demonstrated and employed. Despite the technica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cdb3eaf101a554815a46a8446699342
https://doi.org/10.1109/iembs.2011.6091315
https://doi.org/10.1109/iembs.2011.6091315
Publikováno v:
2008 IEEE/ION Position, Location and Navigation Symposium.
Much as the Global Positioning System has ushered in an era of autonomous navigation on a global scale, X-ray navigation (XNAV) offers the possibility of autonomous navigation anywhere in the solar system. X-ray astronomers have identified a number o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7331d2d4f50f5bc03d4dadd1bb77f5d
https://doi.org/10.1109/plans.2008.4570028
https://doi.org/10.1109/plans.2008.4570028