路面不平度突变检测的研究  

A Study on the Detection of Abrupt Changes of Road Roughness

作　　者：马俊福[1] 付峰[1] 孙麒[1] 

机构地区：[1]浙江理工大学信息电子学院,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2011年第6期890-892,909,共4页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：浙江理工大学科研启动基金资助(0804830-Y)

摘　　要：为了更好地检测路面不平度的突变,提出了基于小波变换提取路面不平度突变的方法。利用小波变换检测路面不平度突变的基本原理和路面不平度不同尺度的最大重叠离散小波变换系数进行路面不平度突变区域的检测。结果表明:在消除边缘效应后,在两个突变区域内,W1、W2和W3小波系数具有一致性,可以准确提取路面不平度突变。In order to improve the detection of road roughness with abrupt changes, a method of extracting the road roughness with abrupt changes based on wavelet transform is proposed. Employing the fundamental principle of the detection of road roughness with abrupt changes based on Wavelet Transform, the maximal overlap discrete wavelet transform coefficients in different scales are adopted to detect the abrupt areas of the road roughness. The experimental results have showed that after eliminating the edge effect, the wavelet coefficients of W1, W2 and W3 are of consistency in two different areas of abrupt changes, which could extract abrupt changes of road roughness precisely.

关 键 词：路面不平度 突变 检测 最大重叠离散小波变换 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]