Algorithm Research of Current Injection in Output Control of Accelerometer Based on INS Onboard Hardware in Loop Real-Time Test System

Zhi Yi Zhang; Yan Zhao; Yu Shuang Liu

doi:10.4028/www.scientific.net/AMM.738-739.734

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 738-739Algorithm Research of Current Injection in Output...

Algorithm Research of Current Injection in Output Control of Accelerometer Based on INS Onboard Hardware in Loop Real-Time Test System

Abstract:

In the ground test of inertial navigation algorithm, it is a typical method to use a turntable with high speed and precision to rebuild the air angular motion. As to the difficulty of building a big overload environment in which to get more real output of accelerometers, the method of using current injection to control its output is put forward in this article. Correlation models are established to control the current source card. At the end of the article, there is a brief analysis about real-time performance and precision of current injection.