Abstract: A method for remotely calibrating an active phased array system, and more particularly an antenna, (APA), used in transmission and/or in reception, comprising transmitting and/or receiving a set of calibration pulses (RCP, TCP). Contrarily to methods known from the prior art, in which a reference signal is transmitted together with the calibration pulses in order to be able to perform a coherent detection of the calibration pulses at a remote station (GS), the method of the invention comprises incoherent demodulation of the calibration pulses and use of a signal processing procedure to account for the phase noise and amplitude fluctuations resulting from said incoherent demodulation. The method of the invention is particularly well suited for space applications, in which the active phased array system is an active phased array (APA) carried by a satellite (SAT) and the remote station (when it is present) is a ground station (GS).

Abstract: A method for remotely calibrating an active phased array system, and more particularly an antenna, (APA), used in transmission and/or in reception, comprising transmitting and/or receiving a set of calibration pulses (RCP, TCP). Contrarily to methods known from the prior art, in which a reference signal is transmitted together with the calibration pulses in order to be able to perform a coherent detection of the calibration pulses at a remote station (GS), the method of the invention comprises incoherent demodulation of the calibration pulses and use of a signal processing procedure to account for the phase noise and amplitude fluctuations resulting from said incoherent demodulation. The method of the invention is particularly well suited for space applications, in which the active phased array system is an active phased array (APA) carried by a satellite (SAT) and the remote station (when it is present) is a ground station (GS).

Abstract: The present invention envisages a GSM mobile telephone in which a line of icons is displayed on a display. As a user navigates through the displayed line of icons, the positions of the icons alter so that the selectable icon moves to the head of the line. This approach makes it very clear (i) which icon is selectable at any time and (ii) where that icon sits in relation to other icons at the same functional level (e.g. only first level icons will be present in one line). First level icons typically relate to the following functions: phonebook; messages; call register; counters; call diversion; telephone settings; network details; voice mail and IrDA activation.

Abstract: The present invention envisages a GSM mobile telephone in which a line of icons is displayed on a display. As a user navigates through the displayed line of icons, the positions of the icons alter so that the selectable icon moves to the head of the line. This approach makes it very clear (i) which icon is selectable at any time and (ii) where that icon sits in relation to other icons at the same functional level (e.g. only first level icons will be present in one line). First level icons typically relate to the following functions: phonebook; messages; call register; counters; call diversion; telephone settings; network details; voice mail and IrDA activation.