Signal Trend Extraction of Road Surface Profile Measurement

摘要：

Its reviewed that the measurement methods of road surface profile and the influence of signal trend extraction of road su rface profile in engineering application. The methods of signal trend extraction are analyzed and compared in recent years. The empirical mode decomposition is selected as the method of extracting signal trend in road surface profile. The decomposition process and detailed algorithm of empirical mode decomposition are introduced. Based on the decomposition and reconstruction processes of empirical mode decomposition, there is an example of road surface data which is acquired on actual road. In the example, the process of empirical mode decomposition and the result of intrinsic mode function extracted are demonstrated. The analysis and comparison results show that the method of empirical mode decomposition is simple and has obvious effect in signal trend extraction. The method of signal trend extraction can be widely applied to road surface data processing.

关键词： road surface profile signal trend empirical mode decomposition signal processing

作者: Duan Hu-ming Xie fei Zhang Kaibin Ma ying Shi Feng

作者单位: Post-Doctoral Research Center China Automobile Engineering Research Institute Chongqing, China Colle China Automobile Engineering Research Institute Chongqing,China

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 1534-1538

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）