System and method for determining the real-time effect of ice accumulation on aircraft surfaces on angle of attack during flight

A system comprising:

• a computer memory configured to store a data table, the data table comprising at least one or more ice thickness values corresponding to a first type of aircraft and one or more lift calculation variables corresponding to the first type of aircraft;
• an interface, the interface operable to receive, from a plurality of sensors, a first set of ice thickness values corresponding to a first time, each ice thickness value within the first set of ice thickness values corresponding to a thickness of ice at a position along a surface of an airfoil for each of a respective one of the plurality of sensors;
• one or more processors communicatively coupled to the computer memory and the interface, the one or more processors operable to:
• filter the each ice thickness value within the first set of ice thickness values with digital signal processing;
• apply signal averaging for each ice thickness value within the first set of ice thickness values;
• determine, based on a measured flight data, a first plurality of lift calculation variables, wherein the lift calculation variables comprises a value corresponding to an airspeed of the airfoil and a value corresponding to an altitude of the airfoil;
• compare at least the first set of ice thickness values with the first set of plurality of lift calculation variables against the data table;
• and
• generate, based on at least the first set of ice thickness variables and the first plurality of lift calculation variables, a threshold angle of attack value;
• the interface further operable to receive, from the plurality of sensors, a second set of ice thickness values corresponding to a second time;
• the one or more processors further operable to:
• filter the each ice thickness value within the second set of ice thickness values with the digital signal processing;
• apply the signal averaging for each ice thickness value within the second set of ice thickness values;
• determine, based on the measured flight data, a second plurality of lift calculation variables;
• compare at least the second set of ice thickness values with the second plurality of lift calculation variables against the data table;
• update at the second time, based on one or more differences between the first and second sets of ice thickness values and the first and second plurality of lift calculation variables, the threshold angle of attack value;
• and
• send, to a display, based on the updated threshold angle of attack, one or more changes to the flight data to adjust an actual angle of attack of the airfoil.