Results 101 to 110 of about 201,777 (208)

A general geometric theory of attitude determination from directional sensing [PDF]

open access: yes
A general geometric theory of spacecraft attitude determination from external reference direction sensors was presented. Outputs of different sensors are reduced to two kinds of basic directional measurements.
Fang, B. T.
core   +1 more source

Study of geopotential error models used in orbit determination error analysis [PDF]

open access: yes
The uncertainty in the geopotential model is currently one of the major error sources in the orbit determination of low-altitude Earth-orbiting spacecraft.
Hart, R. C.   +5 more
core   +1 more source

Towards an analytical theory of the third-body problem for highly elliptical orbits

open access: yes, 2016
When dealing with satellites orbiting a central body on a highly elliptical orbit, it is necessary to consider the effect of gravitational perturbations due to external bodies. Indeed, these perturbations can become very important as soon as the altitude
Deleflie, Florent   +2 more
core  

Determination of onboard coplanar orbital maneuvers with orbits determined using GPS

open access: yes, 2014
In the present paper a study is made in order to find an algorithm that can calculate coplanar orbital maneuvers for an artificial satellite. The idea is to find a method that is fast enough to be combined with onboard orbit determination using GPS data collected from a receiver that is located in the satellite.
Chiaradia, Ana Paula Marins   +2 more
openaire   +1 more source

T-RAIM for Precise Orbit Determination in LEO-PNT. [PDF]

open access: yesSensors (Basel)
Gioia C   +4 more
europepmc   +1 more source

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