Design of passive coplanar components for satellite communications in Ka band

June 25th, 2012 0 Comments

Abstract: In satellite communications, two bands are mainly used: the C and Ku bands. Ka-band offers an alternative to satellite communications with a wide frequency range. The Ka-band frequency, has ...

Computation of Precision Ephemeris Coefficients in the GNSS

June 25th, 2012 0 Comments

Abstract: In the frame of a simulation facility developed for the Italian Space Agency (ASI) and the Air Navigation Services company (ENAV), Telespazio handled the problem of generating the Precision ...

Communication Satellite Payload Redundancy Reconfiguration

June 25th, 2012 0 Comments

Abstract: Communication satellite payload has a redundancy network consists of many four port switches connecting input channels to travelling wave tube amplifiers, i.e. TWTA as outputs. To access these documents ...

Capability and Benefits Deriving from Recontruction of a Real 3D Ionospheric Profile with NeQuick

June 25th, 2012 0 Comments

Abstract: The ionosphere is a dispersive medium for GNSS signals in L band, characterised by a rifractivity index that is a function of the specific RF carrier. To access these ...

An LQR Algorithm to Orbit Maintenance of a Small Satellite along a Circular Orbit

May 29th, 2012 0 Comments

Abstract: In this paper, a linear quadratic regulator algorithm which minimizes the fuel consumption has been presented to orbit maintenance of a small satellite along a circular low earth orbit. ...