摘要
回顾了道路路面数据的测量系统的构成和测试方法。针对海量的道路路面试验数据，将若干信号处理的预处理方法，包括粗大误差的甄别与剔除、信号趋势项的提取、分段试验数据的平滑过渡连接、路面数据随机性检验和车速异常时刻的处理等应用于海量道路路面数据的分析处理中，并进行了相应的改进。在分析这些预处理方法原理的基础上，使用实际采集的试验路面数据作为例子，充分显示了这些方法的处理效果。实例分析结果表明，这些信号预处理方法用来处理和修正道路路面试验数据，使用简单方便，处理效果明显，可在道路路面数据处理及其它工程振动信号预处理中推广应用。
Abstract
It’s reviewed that the components of measurement system of road surface data and measurement methods of road surface profile in automotive test. Based on the mass road surface measurement data, some signal pre-processing methods are proposed, including the identification and correction of abnormal errors, the extraction of signal trends, the smooth connection of segment road surface measurement data, the randomness test of road surface measurement data and the processing of road surface measurement data at the moment of speed anomaly. After the introduction of these methods principle and algorithm, several actual measurement road data as examples, they show that the results of calculation and processing are significant. The test analysis and comparison results show that these methods of signal pre-processing of road surface measurement data are simple and has obvious effect. These methods of signal pre-processing can be widely applied to road surface data processing and other engineering vibration signals processing.
关键词
汽车试验 /
道路路面曲线 /
信号预处理
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Key words
automotive test /
road surface measurement data /
signal pre-processing
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段虎明; 谢 飞; 张开斌;马 颖; 石 锋.
海量道路路面测量数据的若干预处理方法研究[J]. 振动与冲击, 2011, 30(8): 101-106,
Duan Huming; Xie Fei; Zhang Kaibin; Ma Ying; Shi Feng.
Methods of Signal Pre-Processing in Mass Road Surface Measurement Data[J]. Journal of Vibration and Shock, 2011, 30(8): 101-106,
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