1. A method for controlling a gas turbine engine, the method comprising: (i) obtaining dynamic-type information associated with a current state of an engine; and (ii) initializing an engine model with at least a portion of the dynamic-type information, wherein a Kalman filter is used to initialize the portion of the dynamic-type information, wherein at least one value based on the processed dynamic-type information is input to the engine model for determining an engine control action.