Identification of aircraft parameters in the lateral directional flight dimension with variation of control input

In this research, identifying aircraft parameters is carried out for the lateral-directional dimension by noticing the variations of the given control surface deflection input. The inputs are pulse, doublet, and 3-2-1-1. Among the input forms, it is not known which state is most suitable for the lateral-directional dimension. Therefore simulation is done by varying the input deflection control surface and simulation time. The input given is a deflection of the aileron and rudder control surfaces. The purpose of this research is to identify the most suitable input for identifying parametersin the lateral-directional dimension using the equation error method with the ordinary least square estimation technique and to observe the effect of simulation time. The aircraft used is the Lockheed C-5 Galaxy. The simulation results show that the combination of the 3-2-1-1 input form in the aileron deflection surface and the input pulse shape on the Rudder has an error value of about 0.365. This value is smaller among all cases seen from the error matrix A. Based on that, the combination of two inputs is the mostsuitable for the lateral-directional dimension than the other inputs that have been given.