摘要
论述了时域AR模型仿真路面随机信号的过程和方法,在此基础上采用FFT算法做功率谱估计,仿真程序的运行结果与"GB7031-86车辆振动输入路面平度表示方法"的功率谱规约相吻合,获得的模拟数据序列在相关的实验设备投入使用的效果良好.
Base on time domain AR model,a detail process for simulating road surface roughness was described and discussed how to use this method to generate a signal.The simulation results proved that power spectrum of the signal fitted to requests proposed by GB7301-86 and successfully apply the signal to use in testing device.
出处
《东北师大学报（自然科学版）》
CAS
CSCD
北大核心
2010年第3期48-52,共5页
Journal of Northeast Normal University(Natural Science Edition)
基金
国家"863"计划项目(2006AA11A122)
关键词
路面不平度
功率谱密度
自相关
富立叶分析
road surface roughness
power spectrum density
autocorrelation
fourier analysis
