Abstract: A method for estimating the position and speed of an aircraft, by way of a system that includes independent avionic computers receiving inertial measurements supplied by IMUs (IMU1-IMU3) and position measurements supplied by a position sensor. The method includes, for a given independent avionic computer and a current iteration of rank k: upon detection of an IMU fault based on current inertial measurements, transmitting fault information (IP) to a selection sub-module. If a preferred IMU_i is faulty: the selection sub-module (306) selects an IMU_j and transmits, to an estimation sub-module (307), a current inertial measurement nmj(k) of the IMU_j and a previous estimate {circumflex over (b)}j(k?1) of a measurement error model of the IMU_j; the estimation sub-module calculates a current estimate of a state vector based on a previous estimate of the state vector (modified by replacing {circumflex over (b)}i(k?1) with {circumflex over (b)}j(k?1)), nmj(k) and a current position measurement.

Abstract: An automated aircraft taxi system for an aircraft taxiing within an airport environment implements a collision-avoidance function. The collision-avoidance function triggers revision of guidance instructions and or alerts the pilots of the aircraft when a predicted trajectory of moving objects intersects a taxi path trajectory of the aircraft. The collision-avoidance function disregards an identified object that is moving on a taxiway in the airport environment when a predicted trajectory of the identified object does not intersect the taxi path trajectory of the aircraft according to the location of the identified object and the layout of taxiways on the airport map.

Abstract: An estimation device for estimating, during an aircraft approach procedure for landing on a runway following a predefined runway approach, a deviation relative to a reference guidance axis corresponding to the predefined runway approach, and a speed of an aircraft relative to the runway, the approach procedure being carried out with a landing aid device including at least one transmitter station configured to transmit the reference guidance signal defining the reference guidance axis. The estimation device includes an acquisition unit for a current aircraft position of a geo-positioning system, an acquisition unit for a current acceleration of an inertial unit, an acquisition unit for a current lateral and vertical deviation of a landing aid device, a filtering unit for estimating an unbiased aircraft speed, a filtering unit for estimating a current lateral deviation, a current vertical deviation as well as current lateral and vertical speeds of the aircraft.

Abstract: An estimation device for estimating, during an aircraft approach procedure for landing on a runway following a predefined runway approach, a deviation relative to a reference guidance axis corresponding to the predefined runway approach, and a speed of an aircraft relative to the runway, the approach procedure being carried out with a landing aid device including at least one transmitter station configured to transmit the reference guidance signal defining the reference guidance axis. The estimation device includes an acquisition unit for a current aircraft position of a geo-positioning system, an acquisition unit for a current acceleration of an inertial unit, an acquisition unit for a current lateral and vertical deviation of a landing aid device, a filtering unit for estimating an unbiased aircraft speed, a filtering unit for estimating a current lateral deviation, a current vertical deviation as well as current lateral and vertical speeds of the aircraft.

Abstract: A method and system allowing fully autonomous automatic take-off using only images captured by cameras on the aircraft and avionics data. The system includes an image capture device on the aircraft to take a stream of images of the runway, image processing modules to estimate, on the basis of the streams of images, a preliminary current position of the aircraft on the runway and to assign a preliminary confidence index to the estimate. A data consolidation module can determine a relevant current position of the aircraft on the runway by consolidating data originating from the image processing modules with inertial data to correct the estimate of the preliminary current position and determine a relevant confidence index using a current speed of the wheels of the aircraft to refine the preliminary confidence index. A flight control computer can control and guide aircraft take-off.

Abstract: A method and system allowing fully autonomous automatic take-off using only images captured by cameras on the aircraft and avionics data. The system includes an image capture device on the aircraft to take a stream of images of the runway, image processing modules to estimate, on the basis of the streams of images, a preliminary current position of the aircraft on the runway and to assign a preliminary confidence index to the estimate. A data consolidation module can determine a relevant current position of the aircraft on the runway by consolidating data originating from the image processing modules with inertial data to correct the estimate of the preliminary current position and determine a relevant confidence index using a current speed of the wheels of the aircraft to refine the preliminary confidence index. A flight control computer can control and guide aircraft take-off.