Research on Simulation of Vibration Blurred Star Images

The influence of aircraft vibration on the star image captured by star sensors is analyzed,and the mathematical model of vibration blurred star image is deduced and established,which is the first time to quantitatively analyses the effects of vibration on star point extraction accuracy use the data of power spectral density.On this basis,an algorithm is proposed to simulate motion-blurred star image.The simulation results indicate that the star extraction accuracy caused by aircraft motion is linear correlation to specified angular vibration power spectral density in log domain.