Results 271 to 280 of about 4,499,219 (309)

Artificial Neural Network Based Initial Orbit Determination for Angle-Only Data

International Conference on Recent Advances in Space Technologies, 2023
The initial orbit determination methods are well-established for various kinds of observational data including angular, range, and range-rate data.
Ömer Utku Örengül, Kürşat Yenidoğan, Tahsin Cagri Sisman   +2 more
semanticscholar   +1 more source

Comparing Traditional and Admissible-Region Schemes For Angles-Only Initial Orbit Determination

AMOS 2023 Technical Papers, 2023
Probabilistic Admissible Region (PAR) is a technique to initialize the probability density function (pdf) of the states of a Resident Space Object (RSO).
U. Mishra, S. Chakravorty, W. Faber, Islam I. Hussein, Benjamin Sunderland, S. Hesar   +5 more
semanticscholar   +1 more source

A new method of initial orbit determination

Celestial Mechanics, 1986
We present a new method of initial orbit determination for angles-only data. The technique is applicable with only three data sets but the formalism can incorporate arbitrarily large amounts of data. The algorithm rests on the fact that the orbital plane is usually very well determined, as a consequence of the central nature of the gravitational force,
B. G. Morton, L. G. Taff
openaire   +1 more source

Initial Orbit Determination Using Simplex Fusion

2020 IEEE Aerospace Conference, 2020
A new Initial Orbit Determination (IOD) method for angles-only observations is presented. This method is based on an adaptive Nelder-Mead simplex optimization technique for fusion of multiple observations from one or more acquisition satellites. The resulting solution characterizes the target orbit as a standard state vector.
Patrick M. Handley, Susan P. Hagerty
openaire   +1 more source

A Method of Initial Orbit Determination for Space Group Targets

2019 International Conference on Control, Automation and Information Sciences (ICCAIS), 2019
Generally the initial orbit determination algorithm handles a single space target and little attention has been paid to that for group targets. Since the association problem in an extended dense space group is usually difficult, we propose an initial orbit determination method to directly estimate the mean orbital elements of the group targets. Firstly,
Zhengtao Zhang, Huang Qiang, Zhang Zhi
openaire   +1 more source

Differential corrections algorithm for initial orbit determination in the cislunar region using angle-only measurements

Astrodynamics
As space traffic continues to increase in the cislunar region, accurately determining the trajectories of objects operating within this domain becomes critical. However, due to the combined gravitational influences of the Earth and Moon, orbital dynamics
Seur Gi Jo, Brian Baker-McEvilly, D. Canales   +2 more
semanticscholar   +1 more source

Adaptive Physics-Informed Initial Orbit Determination for Too-Short Arcs From Space Optical Observations

IEEE Transactions on Aerospace and Electronic Systems
The increased risk of collisions between objects orbiting the earth is a topic of great relevance in the framework of space traffic management. Resident space objects are very difficult to detect and identify in terms of orbital parameters due to their ...
Gilberto Goracci, Ivan Agostinelli, Fabio Curti   +2 more
semanticscholar   +1 more source

Initial orbit determination using camera array

2017 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 2018
Optical measuring angle data can be used in initial orbit determination. However, optical system has its magnitude limit, the initial orbits can not be determined when targets’ magnitudes are above the limited magnitude or the relative size of the target can not meet the resolution requirements. In order to expand the observable range of optical system
RunFeng Wang, HaiRui Zeng, TingHua Zhang, YingChun LI, Biao Yang   +4 more
openaire   +1 more source

Uncued Detection and Initial Orbit Determination From Short Observations With the Murchison Widefield Array

IEEE Aerospace and Electronic Systems Magazine, 2021
This article details the latest developments in the use of the Murchison Widefield Array as a passive radar receiver for the surveillance of space. We cover methods developed to incorporate orbital parameters into matched-filter processing to achieve ...
Brendan Hennessy, S. Tingay, Robert Young, M. Rutten, B. Crosse, P. Hancock, M. Sokołowski, M. Johnston-Hollitt, D. Kaplan   +8 more
semanticscholar   +1 more source

Initial Orbit Determination of Periodic Orbits in the Earth–Moon System With Ground-Based Optical Observations

IEEE Transactions on Aerospace and Electronic Systems
This research investigates the initial orbit determination for missions in periodic orbits within the Earth–Moon system, observed optically from the ground.
Xin Liu, Roberto Armellin, L. Pirovano, X. Hou   +3 more
semanticscholar   +1 more source