Alternative method to determine the air mass state of an aircraft and to validate and augment the primary method

摘要

A method, apparatus, and computer program product for identifying air data for an aircraft. The lift for the aircraft is identified. The number of surface positions for the aircraft is identified. The angle of attack during flight of the aircraft is identified. A synthetic dynamic pressure is computed from the lift, the number of surface positions, and the angle of attack.

主权项

1. A method for identifying air data for an aircraft, the method comprising:
measuring, using a first sensor, a lift for the aircraft; identifying a number of surface positions for the aircraft; measuring, using a second sensor, an angle of attack during a flight of the aircraft; receiving, at a processor, the lift, the number of surface positions, and the angle of attack; and computing, using the processor, a synthetic dynamic pressure from the lift, the number of surface positions, and the angle of attack by dividing the lift by a coefficient, wherein the coefficient is computed by: multiplying the angle of attack by a slope of a lift coefficient with respect to the angle of attack to form a first value, then by adding the first value to an incremental lift coefficient determined from the number of surface positions to form a second value, then by multiplying the second value by a reference area of a wing of the aircraft.