Abstract: Systems for multi-mode receiver (MMR)-based inertial integration of position solutions replace expensive IRUs with lower-grade but high-performance inertial sensors and GNSS-assisted MMRs, collecting inertial position data indicative of an aircraft position and integrating the inertial data with georeferenced position data within the MMRs. The inertial sensors may include microelectromechanical attitude and heading reference systems capable of generating coasted position solutions based on secondary inertial data and integrated with georeferenced data when it is available. The coasted position solutions may be used as a standby alternative to primary integrated solutions, or serve as an additional primary position solution.

Abstract: A device for making available navigation parameter values of a vehicle is provided. The device includes components distributed in the following categories: several sensors collecting measurement data relating to at least one navigation parameter of the vehicle; several computers processing the measurement data collected by the sensors and calculating said navigation parameters; several networks linking the sensors to the computers and linking the computers to systems using said parameters. The networks transmit all the collected measurement data to the computers, which calculate a value for each navigation parameter as well as an estimated value of the associated fault, using a single common fusion algorithm.

Abstract: A monitoring device including a memory containing a reference path, the memory being separate from a flight management system. The reference path corresponding to a path that is defined during a navigation data validation on ground for the flight management system. A monitoring unit is configured to monitor a current flight path that is determined by the flight management system, by monitoring if this current flight path is in conformity with the reference flight path that is recorded in the memory.

Abstract: Said system (1) comprises as least the following principal functions, a flight path management function (2), a navigation function (3) which makes it possible to calculate the position of the aircraft, a function (5) for calculation of deviations between the position of the aircraft and a flight path to be followed, a management function (6) of at least one navigation database, a management function (7) of performance calculations of the aircraft, and a function (8) of management of interfaces and of display, each of said principal functions being allocated to a specific device of the aircraft, said flight path management function (2) being linked to each of said other principal functions.

Abstract: A monitoring device including a memory containing a reference path, the memory being separate from a flight management system. The reference path corresponding to a path that is defined during a navigation data validation on ground for the flight management system. A monitoring unit is configured to monitor a current flight path that is determined by the flight management system, by monitoring if this current flight path is in conformity with the reference flight path that is recorded in the memory.

Abstract: A device for making available navigation parameter values of a vehicle is provided. The device includes components distributed in the following categories: several sensors collecting measurement data relating to at least one navigation parameter of the vehicle; several computers processing the measurement data collected by the sensors and calculating said navigation parameters; several networks linking the sensors to the computers and linking the computers to systems using said parameters. The networks transmit all the collected measurement data to the computers, which calculate a value for each navigation parameter as well as an estimated value of the associated fault, using a single common fusion algorithm.

Abstract: Said system (1) comprises as least the following principal functions, a flight path management function (2), a navigation function (3) which makes it possible to calculate the position of the aircraft, a function (5) for calculation of deviations between the position of the aircraft and a flight path to be followed, a management function (6) of at least one navigation database, a management function (7) of performance calculations of the aircraft, and a function (8) of management of interfaces and of display, each of said principal functions being allocated to a specific device of the aircraft, said flight path management function (2) being linked to each of said other principal functions.

Abstract: The device (405) for behavior simulation of a radio navigation system, without the latter being installed on an aircraft, comprising a means (410) for determining a position of the aircraft, characterized in that it further comprises: a means (415) for automatically determining at least one radio navigation beacon of a station on the ground depending on said position of the aircraft, and for selecting a radio navigation beacon of an automatically determined station on the ground, a means (420) for calculating at least one physical quantity value linked to the relative position of the aircraft relative to the selected beacon and a means (425) for presenting, on a display means of the aircraft cockpit, each calculated physical quantity value and the identifier of the selected beacon.

Abstract: An aircraft piloting system may include information sources that provide a position indication relating to the aircraft and information that characterizes a virtual approach axis. An information processing unit processes information emanating from the information sources and includes an assisted approach mode function and a landing aid multimode receiver that implements a precision approach. A user device uses the information provided by the landing aid multimode receiver to support the guidance of the aircraft up to its landing.

Abstract: Maintenance process and device for a radionavigation installation of an aircraft. The maintenance device (1) comprises a first means of recording (7) for recording on a first recording medium (8) first events relating to data external to the aircraft, received by said radionavigation installation (2), a second means of recording (10) for recording on a second recording medium (11) second events relating to malfunctions occurring on board the aircraft, and means (13) for making it possible to analyze said first and second events recorded on said first and second recording media (8, 11), so as to determine whether said radionavigation installation (2) should or should not be disassembled.

Abstract: The device (405) for behavior simulation of a radio navigation system, without the latter being installed on an aircraft, comprising a means (410) for determining a position of the aircraft, characterized in that it further comprises: a means (415) for automatically determining at least one radio navigation beacon of a station on the ground depending on said position of the aircraft, and for selecting a radio navigation beacon of an automatically determined station on the ground, a means (420) for calculating at least one physical quantity value linked to the relative position of the aircraft relative to the selected beacon and a means (425) for presenting, on a display means of the aircraft cockpit, each calculated physical quantity value and the identifier of the selected beacon.

Abstract: A system for aiding the landing of an aircraft on a runway uses an angular vertical position of the aircraft and includes at least one landing aid radio. In a stand-alone manner, the position of the aircraft in latitude and longitude is determined, and the position of the threshold of the runway in latitude and longitude is determined. A computing unit corrects, on the basis of positions of the aircraft and of the threshold of the runway, the angular vertical position of the aircraft. The corrected angular vertical position is used to aid the landing of the aircraft.

Abstract: The maintenance device (1) comprises a first means of recording (7) for recording on a first recording medium (8) first events relating to data external to the aircraft, received by said radionavigation installation (2), a second means of recording (10) for recording on a second recording medium (11) second events relating to malfunctions occurring on board the aircraft, and means (13) for making it possible to analyze said first and second events recorded on said first and second recording media (8, 11), so as to determine whether said radionavigation installation (2) should or should not be disassembled.

Abstract: Method and device for aiding the landing of an aircraft on a runway. The device (1) uses an angular vertical position of the aircraft and comprises at least one landing aid radio means (2A), means (3) for determining in a stand-alone manner the position of the aircraft in latitude and longitude, means (4A) for determining the position of the threshold of said runway in latitude and longitude, and a computing unit (5) for, on the basis of said positions of the aircraft and of the threshold of the runway, correcting the angular vertical position of the aircraft, the angular vertical position thus corrected being used to aid the landing of the aircraft.

Abstract: Aircraft piloting system, at least for piloting the aircraft during a non precision approach with a view to a landing.