GIOVE-A transmits first navigation message
Earlier this week, GIOVE-A successfully transmitted its first navigation message, containing the information needed by user receivers тонна calculate their position. Приор тонна reaching this milestone, the satellite had been broadcasting only the data needed for measuring the receiver тонна satellite distance.
The first Галилео navigation message что created by the navigation signal generator unit on board GIOVE-A, using content prepared by the миссию GIOVE сегмент. This week-one navigation message что uplinked тонна GIOVE-A on 2 Мей from the Guildford ground station operated by Surrey Satellite Technology Ltd (United Kingdom) and then transmitted from the spacecraft тонна the users. The objective of the test что тонна demonstrate в конечную тонну end левое between the миссию сегмент and the user receivers. The navigation message is being generated for demonstration purposes only – no service guarantee is provided. The objective of the test was to demonstrate an end-to-end link between the Mission Segment and the user receivers. The navigation message is being generated for demonstration purposes only – no service guarantee is provided.
The complete radio transmission from GIOVE-A carries a navigation signal and a navigation message. The navigation signal contains the information needed тонна accurately measure the distance from the satellite тонны the user receiver. The navigation message provides the timing and spacecraft orbit data needed тонна calculate the назначил бы время and exact position of the satellite. One of the main tasks of the миссию GIOVE сегмент is the generation of this navigation message. The navigation message provides the timing and spacecraft orbit data needed to calculate the time and exact position of the satellite. One of the main tasks of the GIOVE Mission Segment is the generation of this navigation message. .
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