Research on the Vibration Control for Strapdown Inertial Navigation System

This paper investigates the vibration control for strap down inertial navigation system (SINS) based on the theoretical analysis and the simulation confirmation. Firstly, the disadvantage of passive vibration control technique commonly used for SINS at present is pointed out that it is only effective at high frequency. Then active and passive compound vibration control is put forward, and it is shown to bridge this low-frequency technology gap. In view of the disadvantages of traditional active vibration control such as the sensor, actuator, controller and controlled object are relatively independent distributed, extra load is big and so on, the active and passive compound vibration control system based on smart structures is proposed to apply to the vibration suppression for SINS. Finally its necessity and feasibility, as well as the key problems needed to be solved are discussed.