Abstract: A method for validating a terrain database includes a step of simulating flights based on trajectory data for an aircraft, the flight simulations being speeded up, a step of determining terrain collision risks by means of a system for signalling terrain collision risks based on the speeded-up flight simulations, a step of determining the origins of terrain collision risks with a view to validating or not validating the terrain database.

Abstract: An anti-collision device of an aircraft including a plurality of sensors, the plurality of sensors including at least two separate sensors, each sensor being configured to respectively deliver its own set of captured data as a function of the proximity of at least one obstruction, the anti-collision device including: at least one data homogenization module configured to transform at least one set of captured data in a corresponding set of unmarked data, each set of unmarked data respectively associated with at least one sensor being made up of a plurality of identical data types from one set of unmarked data to another, and a data processing module configured to generate, from said sets of unmarked data, at least one piece of information representative of the presence or absence of obstruction(s).

Abstract: An anti-collision device of an aircraft comprising a plurality of sensors, the plurality of sensors comprising at least two separate sensors, each sensor being configured to respectively deliver its own set of captured data as a function of the proximity of at least one obstruction, the anti-collision device comprising: at least one data homogenization module configured to transform at least one set of captured data in a corresponding set of unmarked data, each set of unmarked data respectively associated with at least one sensor being made up of a plurality of identical data types from one set of unmarked data to another, and a data processing module configured to generate, from said sets of unmarked data, at least one piece of information representative of the presence or absence of obstruction(s).

Abstract: A method for determining endpoint(s) for deciding to trigger evasive maneuver by an aircraft, an associated device and computer program are disclosed. In one aspect, the method includes obtaining an anticipated route of the aircraft and a set of locations on the route presenting a collision risk for the aircraft, determining, for each location of the set, an endpoint for deciding to trigger an evasive maneuver associated with the location, by applying a rule for determining an endpoint associated with the location, and segmenting the route into a set of N route segments, with N?2. The rule for determining the endpoint associated with the location of the set is a function of the route segment in which the location associated with the set is located.

Abstract: A method for securing a provisional aircraft itinerary with respect to potential threats associated with geographical coordinates, according to which the provisional itinerary includes geographical coordinates of waypoints, two successive waypoints defining an anticipated route segment with the two waypoints as ends, the method comprising carrying out a first risk detection, as a function of at least the geographical coordinates of the ends of each segment between two waypoints and threats to identify potentially at-risk (segment, threat) pairs, wherein each segment is split into segment sections, and carrying out a second risk detection for each pair, in order, based on at least the geographical coordinates of the sections of the segment of the pair and at least the geographical coordinates of the threat of the pair, to determine whether the threat is confirmed as presenting a collision risk with the segment.

Abstract: A method and a device for the filtering of alerts originating from a collision detection system of an aircraft makes it possible, by proposing a novel condition for alert disabling, to avoid an abnormal drop of an aircraft in the case of a CFIT (controlled flight into terrain) by authorizing the output of the alert when this novel condition is not complied with. This novel condition relies on a method for thresholding the angle of approach of the aircraft (FPA for flight path angle) as a function of the altitude of the aircraft with respect to the runway and of the angle of approach specified for each runway and which is recovered via the terrain database.

Abstract: The invention relates to a method of alert calculation for an aircraft obstruction proximity warning system including a step for detecting a hazardous flight situation capable of triggering an alert as a function of a data signal representing the change in height below the aircraft, including, prior to the step of detection, a step for converting the data signal representing the change in height as a function of information representative of the vertical profile of the obstructions below the aircraft.

Abstract: A method and a device for the filtering of alerts originating from a collision detection system of an aircraft makes it possible, by proposing a novel condition for alert disabling, to avoid an abnormal drop of an aircraft in the case of a CFIT (controlled flight into terrain) by authorizing the output of the alert when this novel condition is not complied with. This novel condition relies on a method for thresholding the angle of approach of the aircraft (FPA for flight path angle) as a function of the altitude of the aircraft with respect to the runway and of the angle of approach specified for each runway and which is recovered via the terrain database.

Abstract: The present invention relates to a device and methods for filtering anti-collision alerts for aircraft having a locating system charting the position of the aircraft and estimating the precision of its position. A navigation system of the aircraft calculates at least the actual speed of the aircraft, the speed instruction and a first deviation between the instruction and the actual speed, and the deviation being compared with a first reference overshoot threshold. An anti-collision system generates alerts. An alarms manager of the aircraft centralizes the alerts transmitted by the terrain anti-collision equipment of the aircraft to the crew. The alerts each posses a coding of the danger level, and the danger levels form part of a first predetermined set. The alert filter according to the invention filters sets of alerts according to the coding of their danger level.

Abstract: Method, device and item of equipment for filtering alarms originating from a windshear detection system embedded in an aircraft being able to emit an alarm. The aircraft has at least one sensor allowing the acquisition of a flight parameter. The device includes: units for the calculation of the second derivative of the flight parameter, units for the calculation of the absolute value of the second derivative of the flight parameter, units for the comparison of the absolute value of the second derivative of the flight parameter with a threshold C1, units for evaluating whether the absolute value of the second derivative of the flight parameter exceeds the threshold C1 over a duration greater than a time threshold T, and units for suppressing the alarm originating from the windshear detection system.

Abstract: The invention relates to a method of alert calculation for an aircraft obstruction proximity warning system including a step for detecting a hazardous flight situation capable of triggering an alert as a function of a data signal representing the change in height below the aircraft, including, prior to the step of detection, a step for converting the data signal representing the change in height as a function of information representative of the vertical profile of the obstructions below the aircraft.

Abstract: The invention relates to a method, a device and an item of equipment for filtering alarms originating from a windshear detection system embedded in an aircraft being able to emit an alarm. The aircraft has at least one sensor allowing the acquisition of a flight parameter. The device according to the invention includes: means (302), (402) for the calculation of the second derivative of the flight parameter, means (303), (403) for the calculation of the absolute value of the second derivative of the flight parameter, means (304), (404) for the comparison of the absolute value of the second derivative of the flight parameter with a threshold C1, means for evaluating whether the absolute value of the second derivative of the flight parameter exceeds the threshold C1 over a duration greater than a time threshold T, and means for suppressing the alarm originating from the windshear detection system (350), (450).

Abstract: The present invention relates to a device and methods for filtering anti-collision alerts for aircraft having a locating system charting the position of the aircraft and estimating the precision of its position. A navigation system of the aircraft calculates at least the actual speed of the aircraft, the speed instruction and a first deviation between the instruction and the actual speed, and the deviation being compared with a first reference overshoot threshold. An anti-collision system generates alerts. An alarms manager of the aircraft centralizes the alerts transmitted by the terrain anti-collision equipment of the aircraft to the crew. The alerts each posses a coding of the danger level, and the danger levels form part of a first predetermined set. The alert filter according to the invention filters sets of alerts according to the coding of their danger level.

Abstract: The method in accordance with the invention is a method of improving aeronautical safety relating to air/ground communications and to the environment of aircraft and it is characterized in that the quality of the air/ground exchanges between the crew and an air traffic control center is monitored automatically aboard the aircraft in which this method is implemented, that the context arising from these exchanges is correlated with the onboard data and those produced by the monitoring of the environment of the aircraft, and that warnings destined for the crew of the aircraft are formulated by allocating these messages a severity level as a function of the degree of dangerousness of a detected threat and/or of gaps or inconsistencies between the instructions and information from the control center and the flight parameters of the aircraft or the intentions of its crew and/or messages destined for the air traffic control.