摘要
本文提出了计算FFT分析器作潜密度估计时的偏度误差的离散化计算公式,并与积分计算进行了比较,给出了采用矩形窗和汉宁窗时FFT分析器对白噪声谱和单自由度系统响应谱的估计偏度误差分析的算例。
The discretization formula calculating the bias errors in spectral density estimates using FFT analyzers was proposed and compared with the integrated calculation. The calculating examples of analysis of bias errors in estimating the white noise spectral density and the response spectral density of single degree-of-freedom system using FFT analyzers when the boxcar window function or the Harming window function was used were provided.
出处
《振动与冲击》
EI
CSCD
北大核心
1989年第2期12-18,共7页
Journal of Vibration and Shock
