Simulation of Guidance Subsystem of Launch Vehicle Based on Matlab/Simulink

Adapting the CZ series launch vehicle as research object, and according to multi-scale Modeling, the simulation model of the Launch Vehicle guidance subsystem was established and simulated in Matlab/Simulink. A series of relatively independent mathematical model such as rocket instantaneous velocity, instantaneous displacement, earth gravity acceleration, navigation guidance equation etc were built at first. Then the sub simulation models of these units were built in Matlab/Simulink. The model of guidance calculating subsystem of Launch Vehicle was acquired by means of integration on the Basis of their Logical Relationships. Comparing with the real sampling data, the results showed that the model was sound and the method was validity.