48 citations · 303 across the 37 of their papers we have counts for
6 papers · 1 filter
Robust Optimal Power Distribution for Hyperthermia Cancer Treatment
Nafiseh Shariati, Dave Zachariah, Johan Karlsson +1
We consider an optimization problem for spatial power distribution generated by an array of transmitting elements. Using ultrasound hyperthermia cancer treatment as a motivating ex…
The role of the time-arrow in mean-square estimation of stochastic processes
Yongxin Chen, Johan Karlsson, Tryphon T. Georgiou
The purpose of this paper is to explain a certain dichotomy between the information that the past and future values of a multivariate stochastic process carry about the present. Mo…
Multidimensional Rational Covariance Extension with Applications to Spectral Estimation and Image Compression
Axel Ringh, Johan Karlsson, Anders Lindquist
The rational covariance extension problem (RCEP) is an important problem in systems and control occurring in such diverse fields as control, estimation, system identification, and…
Time Localization and Capacity of Faster-Than-Nyquist Signaling
Ather Gattami, Emil Ringh, Johan Karlsson
In this paper, we consider communication over the bandwidth limited analog white Gaussian noise channel using non-orthogonal pulses. In particular, we consider non-orthogonal trans…
The Multidimensional Moment Problem with Complexity Constraint
Johan Karlsson, Anders Lindquist, Axel Ringh
A long series of previous papers have been devoted to the (one-dimensional) moment problem with nonnegative rational measure. The rationality assumption is a complexity constraint…
Infinite dimensional Ornstein-Uhlenbeck processes with unbounded diffusion - Approximation, quadratic variation, and Itô formula
John Karlsson, Jörg-Uwe Löbus
The paper studies a class of Ornstein-Uhlenbeck processes on the classical Wiener space. These processes are associated with a diffusion type Dirichlet form whose corresponding dif…