Patent ID: 8077055
Filing Date: 2011-12-13
Classification: G01S,Y02A

Abstract:
1. A detection system for filtering alarms originating from a windshear detection system, embedded in an aircraft, the detection system being able to emit an alarm and the aircraft comprising at least one sensor allowing acquisition of an angle of attack, the detection system for filtering alarms comprising: means for calculation of a second derivative of the angle of attack, means for comparison of a term related to the second derivative of the angle of attack with a threshold C means for evaluating whether the term related to the second derivative of the angle of attack exceeds the threshold C a first pathway comprising a first opening gate linked to the comparison means and able to suppress an alarm for a first duration T a second pathway comprising a second opening gate linked to the comparison means and able to suppress the alarm for the first duration T means for suppressing the alarm originating from the windshear detection system based on outputs of the first and second pathway.