Then , chapter 2 shows how to generate the stationary random excitation of the road roughness from the given spectrum amplitude of the road roughness with the random phase 基于隨機(jī)相位生成平穩(wěn)隨機(jī)路面激勵(lì),證明了車輛變速工況下的隨機(jī)路面激勵(lì)譜為均勻調(diào)制演變功率譜。
Abstract this paper investigated the window effects and the spectrum amplitude errors in hamming windowing spectrum analysis in detail and gave its compensation coefficients 摘要主要以漢明窗為例,定量分析了窗函數(shù)引起的信號幅度譜誤差,給出了相對幅度譜補(bǔ)償系數(shù)的理論值。