Modeling and Simulation of Aircraft Movement Based on Matlab/S-Function

Abstract

In research of aircraft movement, the general method for modeling and simulation is Matlab/simuink, not Matlab/S-function. But in complex kinematics system, Matlab/S-function is of great use. This paper mainly introduces how to use S-Function to model and simulate kinematics equation, and analyzes the meaning and function of various modules. The figureures of three angular velocities and location of aircraft in earth-fixed coordination are obtained through simulating. The results indicate that this method is accurate and effective, and make the model contact interface more succinct.

Modeling of Serial Port Communication in the Three-axis Turntable Simulation System

“…In the actual modeling process, some models created directly with Simulink are very complex or impossible [7], while the S-Function is a good solution to this problem. S-Function is developed to create a serial port communication interface module which is shown in Figure 2.…”

“…According to the Simulink theory [8], MdlInitialize Size callbacks function first to check the validity of input parameters in the initialization phase, where the input parameter value is 0. Then, set the numbers of input and output ports.…”