@book{a3a27ab70542446eaa1a7ab8337bcfeb,
title = "Estimation of Frequency Response Functions by Random Decrement",
abstract = "A method for estimating frequency response functions by the random decrement technique is investigated in this paper. The method is based on the auto and cross Random Decrement functions of the input process and the output process of a linear system. The Fourier transformation of these functions is used to calculate the frequency response functions. The Random Decrement functions are obtained by averaging time segments of the processes under given initial conditions. The method will reduce the leakage problem, because of the natural decay of the Random Decrement functions. Also, the influence of noise will be reduced since the FFT is applied to the signatures, where the noise is reduced by averaging. Finally, the proposed technique will typically be faster than the traditional method, where the FFT is applied to every data segment instead of applying the FFT just once to the final Random Decrement function. The method is demonstrated by a simulation study.",
keywords = "Random Decrement, Frequency Response, Linear System, Random Decrement, Frequency Response, Linear System",
author = "Rune Brincker and Asmussen, {J. C.}",
note = "Presented (partly) at the 14th Internatinal Modal Analysis Conference Dearborn, Michigan, USA, February 12-15, 1996 PDF for print: 24 pp",
year = "1995",
language = "English",
series = "Fracture and Dynamics",
publisher = "Dept. of Building Technology and Structural Engineering, Aalborg University",
number = "67",
address = "Denmark",
}