噪声与振动控制2019，Vol.39Issue(2)：37-41,5.DOI:10.3969/j.issn.1006-1355.2019.02.007
振动条件下陀螺加速度计误差抑制技术
Research on Error Suppression Technology of PIGA under Vibration Condition
于沛 1闫禄 1张金云 1李晶2
作者信息
- 1. 北京航天控制仪器研究所,北京 100039
- 2. 北京石油化工学院 信息工程学院,北京 102617
- 折叠
摘要
Abstract
In order to reduce the vibration error of PIGA (pendulous integrating gyro accelerometer) of inertial platform under vibration conditions, a measurement method for noise reduction based on the PIGA precession during integer periods is proposed. The method is used to measure the relative time data of the precession of the PIGA in the inertial platform system under both static state and vibration state. Based on the improved wavelet method, the time series of static state and vibration state are obtained, and then the vibration error of the gyroscope accelerometer is calculated. By this testing method, the precession angular rate error of the PIGA is suppressed, and the accuracy of the test under vibration state is improved. Finally, the validity of the algorithm is verified by the measured data, and the accuracy of the identification can reach 10-7. The vibration accuracy of the PIGA in the inertial platform system under vibration state is improved.关键词
振动与波/陀螺加速度计/振动误差/小波去噪/实验Key words
vibration and wave/ PIGA/ vibration error/ wavelet denoising/ experiments分类
航空航天引用本文复制引用
于沛,闫禄,张金云,李晶..振动条件下陀螺加速度计误差抑制技术[J].噪声与振动控制,2019,39(2):37-41,5.
