快速小波变换在MEMS陀螺信号处理中的应用(英文)

被引：6

作者：

吉训生

王寿荣

许宜申

机构：

[1] 东南大学仪器科学与工程学院

来源：

Journal of Southeast University(English Edition) | 2006年 / 04期

关键词：

小波变换; 信号处理; 陀螺; 阈值;

D O I：

暂无

中图分类号：

TN911.7 [信号处理];

学科分类号：

0711 ; 080401 ; 080402 ;

摘要：

介绍了Mallat快速小波分解和重构算法,分析了一种可以大大降低运算负担,并且十分易于硬件实时实现的快速算法.该算法不再需要小波变换过程中的内插和抽取步骤,给出了相应的分解和重构过程的公式.对MEMS陀螺仪测量信号的仿真结果表明:算法只需更短的处理时间就可以完成去噪声过程,并且可以取得同样的去噪效果.在TMS320C6713芯片上实现了该算法,每个数据的处理时间只需0.014ms,静态漂移信号的标准差也从78.435 5(°) /h降到36.763 5(°) /h,完全可以满足信号实时处理的需要.

引用

页码：510 / 513

页数：4

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