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math.OC2021★ 1 cited
Low-Latency Digital Downconversion for Control Applications
Olof Troeng, Lawrence Doolittle
The slowly varying complex envelope of sinusoidal signals can be estimated in real-time using digital downconversion. In this paper, we discuss the requirements on digital downconv…
math.OC2020★ 7 cited
Five-Full-Block Structured Singular Values of Real Matrices Equal Their Upper Bounds
Olof Troeng
We show that the structured singular value of a real matrix with respect to five full complex uncertainty blocks equals its convex upper bound. This is done by formulating the equa…
math.OC2018
A Refined Algorithm for Curve Fitting by Segmented Straight Lines
Olof Troeng, Mattias Fält
We consider least squares approximation of a function of one variable by a continuous, piecewise-linear approximand that has a small number of breakpoints. This problem was notably…