传感技术学报Issue(11)：1493-1498,6.DOI:10.3969/j.issn.1004-1699.2013.11.005
基于小波降噪与最小二乘估计的石英挠性加速度计模型辨识
Model Identification of Quartz Flexible Accelerometer Based on Wavelet Denoising and Least-Square Estimation
摘要
Abstract
The quartz flexible accelerometer is very important in inertial navigation systems, and it affects the precision of whole system. To improve its usage accuracy,an identification method is explored with model parameters of accelerometer. Using the static test of gravitational field, the techniques of wavelet denoising and least-square estimation were combined to implement the accelerometer model identification. To evaluate this proposed method, the standard deviation of residuals and the uncertainty of coefficient estimates were employed. The experiments on accelerometer measurement signals under two kinds of installation method in the gravitational field were done. Also, a simulation experiment was applied to verify the effectiveness of proposed method. The results showed that the estimation of accelerometer model coefficients with the proposed method could achieve high accuracy.关键词
石英挠性加速度计/模型辨识/小波降噪/最小二乘估计/不确定度Key words
quartz flexible accelerometer/model identification/wavelet denoising/least-square estimation/uncertainty分类
信息技术与安全科学引用本文复制引用
徐伟,李强,陈雪冬,伍春..基于小波降噪与最小二乘估计的石英挠性加速度计模型辨识[J].传感技术学报,2013,(11):1493-1498,6.基金项目
国防基础科研计划项目(B3120110005) （B3120110005）
四川省教育厅科研项目(12ZA185) （12ZA185）
