Viasat

An apparatus for communications comprises a sample buffer, a beamformer and a processor. The sample buffer is configured to buffer respective subsets of digital sample streams obtained by converting analog signals from an antenna array. The analog signals corresponding to radio frequency signals received by the antenna array. The respective subsets extend across a portion of a duration. The portion is shorter in time than the duration. The respective subsets of the digital sample streams are time-synchronized with one another. The beamformer is configured to apply, to the digital sample streams extending across the duration, beam weights to the digital sample streams to obtain one or more beam signals that extend across the duration. The processor is coupled with the sample buffer. The processor is configured to determine a spatial characteristic for the radio frequency signals based at least in part on the respective subsets of the digital sample streams.

The described features generally relate to adjusting a native antenna pattern of a satellite to adapt communications via the satellite. For example, a communications satellite may include an antenna having a feed array assembly, a reflector, and a linear actuator coupled between the feed array assembly and the reflector. The feed array assembly may have a plurality of feeds for communicating signals associated with a communications service, and the reflector may be configured to reflect the signals transmitted between the feed array assembly and one or more target devices. The linear actuator may have an adjustable length, or otherwise provide an adjustable position between the feed array assembly and the reflector. By adjusting the position of the feed array assembly relative to the reflector, the communications satellite may provide a communications service according to a plurality of native antenna patterns.

A method of controlling media content provided to an on-board media system in a transport craft is provided The method includes receiving data representing a location of the transport craft from a location system of the transport craft, providing, by an on-board content management system including a geofence monitor, the media content, the providing including. The operation of providing includes determining the media content the on-board media system provides based on a determination of whether the transport craft satisfies a geofence condition, the satisfaction of the geofence condition based on the received data representing the location of the transport craft and instructing the on-board media system to provide determined media content.

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