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Abstract

Currently the matrix vibration of the strapdown inertial navigation system (SINS) for some cruise missile needs to be reduced and conventional algorithms occupy excessive hardware resources. Considering the vibration frequency range from 50 to 400HZ has the biggest impact on the guidance accuracy, we propose a target method for active vibration control in the SINS. Firstly, the requirement analysis is carried out for the target method, and secondly the MATLAB software is used to design the parameters and compare the filtering simulation. Then the hardware design is performed and the filtering algorithm is improved to reduce the power consumption approaching green computing. Finally the effectiveness and cost-efficiency of the target method for active vibration control in the SINS is verified by the experiment. The results show that the target method can separate the main vibration frequency which affects the guidance accuracy with a good linearity effect, efficient hardware utilization and low power consumption approaching green computing. Moreover, the accuracy, the effectiveness and efficiency of the control algorithm have been also significantly improved.

Keywords

Active vibration control green computing strapdown inertial navigation system (SINS)MATLAB FPGA

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Target method approaching green computing for active vibration control in the strapdown inertial navigation system

Abstract

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