Zobrazeno 1 - 10
of 805
pro vyhledávání: '"Wind triangle"'
Autor:
Meir Pachter, Turner J. Montgomery
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 53:2359-2371
A method for intermittently aiding an inertial navigation system (INS) is explored in which a ground feature of unknown position is optically tracked over a short measurement epoch—one then refers to Visual-INS. In contrast to current machine visio
Publikováno v:
Chinese Journal of Aeronautics, Vol 30, Iss 5, Pp 1750-1764 (2017)
The navigation problem of the lifting reentry vehicles has attracted much research interest in the past decade. This paper researches the navigation in the blackout zone during the reentry phase of the aircraft, when the communication signals are att
Autor:
Jacek Januszewski
Publikováno v:
TransNav: International Journal on Marine Navigation and Safety of Sea Transportation, Vol 11, Iss 3, Pp 419-423 (2017)
An uninterrupted information about the user’s position can be obtained generally from satellite navigation system (SNS). At the time of this writing (January 2017) currently two global SNSs, GPS and GLONASS, are fully operational, two next, also gl
Publikováno v:
Advances in Space Research. 59:3070-3079
Many countries have been paying great attention to space exploration, especially about the Moon and the Mars. Autonomous and high-accuracy navigation systems are needed for probers and rovers to accomplish missions. Inertial navigation system (INS)/c
Autor:
Lu Yan, Zhao DingXuan
Publikováno v:
Journal of Computational and Theoretical Nanoscience. 14:2886-2893
Autor:
Satyam Dwivedi, Antonio Moschitta, John-Olof Nilsson, Valter Pasku, Alessio De Angelis, Peter Händel, Paolo Carbone
Publikováno v:
I2MTC
This paper investigates the applicability of a developed Magnetic Positioning System (MPS) as a support for a dead-reckoning inertial navigation system (DR-INS) for pedestrian applications. The integrated system combines the complementary properties
Autor:
Renato Zanetti, Greg Holt, Robert Gay, Christopher D’Souza, Jastesh Sud, Harvey Mamich, Michael Begley, Ellis King, Fred D. Clark
Publikováno v:
Journal of Guidance, Control, and Dynamics. 40:1106-1116
Launched in December 2014 atop a Delta IV Heavy from the Kennedy Space Center, the Orion vehicle’s Exploration Flight Test 1 successfully completed the objective to stress the system by placing the uncrewed vehicle on a high-energy parabolic trajec
Autor:
John F. Raquet, Aaron Canciani
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 53:67-80
Robust aerial navigation without GPS is a challenging problem. Alternative navigation systems for airborne use are often limited by where and when they can operate. For example, terrain following systems cannot operate over oceans, and star-tracker a
Autor:
Mehdi Emami, Mohammad Reza Taban
Publikováno v:
Ocean Engineering. 130:611-619
In this paper, an integrated navigation system based on H-infinity filter is proposed for improving the performance of underwater navigation system. The proposed navigation system consists of a package with a triad of accelerometers and an Attitude a
Publikováno v:
Aerospace Science and Technology. 58:629-640
In ordinary aircrafts, the geographic coordinate is usually taken as reference coordinate to build navigation systems. Changes of gravity field and radius caused by the non-perfect sphere and uneven mass distribution of the earth are ignored or simpl