Our research topics
The long term objective of the department is the realization of the IMMI project (Interpretation by Measuring, Modelling and Identification), since 1989. Besides this main project, which covers a broad spectrum of several related activities, also some other independent research topics (national or European funding) are at stake.
Measuring nonlinear distortions: from test case to an F-16 Fighter
What are the similarities and differences between the behavior of a small vibrating test system and an F-16 fighter? To find it out, we compare measurements of the test system to measurements from the bolted connection of the wing and the missile of a F-16 Fighter Falcon from the Belgian air...
Nonparametric Time-Variant Frequency Response Function Estimation from Noisy Input, Noisy Output Measurements of Multivariate Time-Variant Systems Operating in Feedback.
The classical time-invariance assumption is often not (exactly) met in real life applications. As a natural extension of the frequency response function, the time-variant frequency response function (TV-FRF) provides quickly insight into the complex dynamics of time-variant systems. Recently a...
Subspace identification with prior knowledge
State-of-the-art system identification methods produce unreliable model parameter estimates when only a small number of noisy measurements are available. In such cases, the accuracy of the estimated parameters can be improved by using prior knowledge about the system. This, however, is...
Using the Best Linear Approximation in circuit design
The need for faster and more efficient electronic circuits pushes the devices more and more into their non-linear operating regions. The amount of non-linear distortion generated by a circuit becomes an increasingly important part of the circuit’s specifications. Most of the designers of analog...