The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A new approach to resolve integer ambiguity and achieve instantaneous spacecraft attitude from phase information of Global Positioning System (GPS) signals, without requiring independent attitude information from traditional attitude sensors is presented. A newly approached algorithm based on Gram-Schmidt orthonormalisation (GSO) is proposed for medium length baseline observations. By using a newly...
This paper presents the orbit determination of low- Earth orbit (LEO) spacecraft from code information of Global Position System (GPS) signals. An extended Kalman filter was implemented to estimate the position and velocity of the spacecraft. The effect of second harmonic, J2, of the Earth's oblateness was included in the system model. The estimated results were evaluated by the reference solutions...
This paper presents a new approach to resolve integer ambiguity and achieve instantaneous spacecraft attitude from phase information of global positioning system signals, without requiring independent attitude information from traditional attitude sensors. A newly approached algorithm based on Gram-Schmidt orthonormalisation is proposed for medium length baseline observations. Using an attitude algorithm...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.