形态学滤波在压电陀螺信号处理中的应用  

Application of Morphology Filtering in Piezoelectric Gyroscope Signal Processing

作　　者：马从兵[1] 

机构地区：[1]淮阴工学院交通工程系,江苏淮阴220031

出　　处：《压电与声光》2007年第5期527-529,共3页Piezoelectrics & Acoustooptics

摘　　要：基于数学形态学滤波中的开-闭和闭-开滤波器的基本原理,针对压电陀螺信号噪声的特点和结构元素的选择原则,选用半圆形、三角形和余弦形的结构元素,构造一种多结构元素并行复合形态滤波器,对某型号压电陀螺的静态漂移和动态测量信号进行仿真分析,并与小波变换的处理结果进行了比较。结果表明,形态学滤波器可有效提高输出信号的信噪比,提高处理过程的速度,易于工程实现。The paper analyzed the principle of the open-close fiher and the close-open filter in the mathematical morphology filtering. Based on the noise feature of the piezoelectric gyroscope and how to select method of the structure element, structure elements of the half-circle, triangle and the cosine were used to make up a paralleling complex morphology filter. The static signal and dynamics measurement from a piezoelectric gyroscope was simulated. Comparison result between the wavelet transformation and the morphology filtering showed that the morphology filtering can improve Signal-to-Noise Ratio（SNR） of the output signal, speed of the signal processing procedure. It is easy for the hardware implementation.

关 键 词：压电陀螺 数学形态学 信号处理 结构元素 

分 类 号：U666.1[交通运输工程—船舶及航道工程]