Dynamic effective isotropic radiated power spectral density control

A method for controlling equivalent isotropic radiated power spectral density of a communications link between an aircraft and a geosynchronous orbit satellite, the method comprising:

• retrieving navigation data from an avionics bus of the aircraft;
• selecting a satellite beam from a plurality of available satellite beams for establishing the communications link to the geosynchronous orbit satellite, each of the satellite beams being associated with a regulatory compliance mask;
• retrieving antenna orientation data from an antenna controller unit, the antenna orientation data being derived from the navigation data and is representative of an orientation of the antenna relative to the geosynchronous orbit satellite;
• generating, on a broadband controller, a set of output variables as a function of the antenna orientation data, a set of normalized equivalent isotropic radiated power spectral density values for an antenna mounted to the aircraft, and the regulatory compliance mask;
• and
• relaying the output variables to a modem, an output power and a carrier bandwidth of the satellite beam transmitted from the antenna being controllable by the output variables for transmissions to be within predefined limits of equivalent isotropic radiated power spectral density.

A non-transitory computer readable medium connectible to an aeronautical satellite broadband communications system including instructions executable by the system for performing a method of controlling equivalent isotropic radiated power spectral density of a communications link between the system and a geosynchronous orbit satellite, the method comprising:

• retrieving navigation data from an avionics bus of the aircraft;
• selecting a satellite beam from a plurality of available satellite beams for establishing the communications link to the geosynchronous orbit satellite, each of the satellite beams being associated with a regulatory compliance mask;
• retrieving antenna orientation data from an antenna controller unit, the antenna orientation data being derived from the navigation data and is representative of an orientation of the antenna relative to the geosynchronous orbit satellite;
• generating, on a broadband controller, a set of output variables as a function of the antenna orientation data, a set of normalized equivalent isotropic radiated power spectral density values for an antenna mounted to the aircraft, and the regulatory compliance mask;
• and
• relaying the output variables to a modem, an output power and a carrier bandwidth of the satellite beam transmitted from the antenna being controllable by the output variables for transmissions to be within predefined limits of equivalent isotropic radiated power spectral density.