Systems for control of tests for broadband random vibration: Two approaches to the design of algorithms (Q1287272)

This paper surveys methods for digital control of broadband random vibration tests. Such tests are used to test, in a controlled environment, the response of devices to realistic vibrations. Vibrations are characterised by the power spectral density (PSD) of the vibration accelerations. A number of interesting mathematical/statistical problems are involved in the design of vibration tests, such as simulation of random processes with given spectral density, estimation of PSDs, transfer functions, detection of changes in PSDs and related quantities. The authors study non-parametric (based on Fourier transform) and parametric (based on autoregressive moving average models) approaches to the problem, compare their merits and give extensive bibliographic references.