传感技术学报Issue(10)：1349-1354,6.DOI:10.3969/j.issn.1004-1699.2014.10.009
基座扰动影响磁悬浮寻北仪精度的数据处理方法研究
Data Processing Research on Orientation Accuracy of Disturbing Base in Magnetic Levitation Gyroscope North Finder
摘要
Abstract
Factors affecting the accuracy of magnetic levitation found north finder can be divided into high frequency and low frequency noise energy interference. In order to eliminate the effect of disturbing base on the precision of magnetic levitation gyroscope north finder,wavelet pretreatment method eliminating high frequency noise is firstly proposed;then,cubic spline interpolation envelope mean filter and robust estimation method based on EMD algorithm analysis detecting the size and location of noise points is used to eliminate the low frequency and abnormal interference. Also there is a comparing with the arithmetic average filtering and least squares method for the result precision of north seeker. The calculations shows that new improving methods can greatly enhance the accuracy of maglev north seeker when abnormal interference exists outside.关键词
磁悬浮寻北仪/基座扰动/包络均值滤波/抗差估计/EMD分解/数据处理Key words
magnetic levitation gyroscope north finder/disturbing base/envelope mean filter/robust estimation/Em￣pirical Mode Decomposition/data processing分类
交通工程引用本文复制引用
张腾飞,谭立龙,仲启媛..基座扰动影响磁悬浮寻北仪精度的数据处理方法研究[J].传感技术学报,2014,(10):1349-1354,6.
