no code implementations • 6 Mar 2024 • David Sundström, Anton Björkman, Andreas Jakobsson, Filip Elvander
The ability to accurately estimate room impulse responses (RIRs) is integral to many applications of spatial audio processing.
no code implementations • 1 Jun 2023 • Wenkai Jia, Andreas Jakobsson, Wen-Qin Wang
When a target is masked by mainlobe clutter with the same Doppler frequency, it is difficult for conventional airborne radars to determine whether a target is present in a given observation using regular space-time adaptive processing techniques.
no code implementations • 14 Apr 2022 • Wenkai Jia, Andreas Jakobsson, Wen-Qin Wang
Owing to the fact that the resulting output signal-to-interference-plus-noise ratio (SINR) is a function of the transmit waveforms and weights, as well as due to the ever-greater competition for the finite available spectrum, a joint design scheme for the FDA transmit weights and the spectrally compatible waveforms is proposed to efficiently use the available spectrum while maintaining a sufficient receive SINR.
no code implementations • 14 Apr 2022 • Wenkai Jia, Andreas Jakobsson, Wen-Qin Wang
In this paper, we focus on the design of the transmit waveforms of a frequency diverse array (FDA) in order to improve the output signal-to-interference-plus-noise ratio (SINR) in the presence of signal-dependent mainlobe interference.
no code implementations • 14 Apr 2022 • Wenkai Jia, Andreas Jakobsson, Wen-Qin Wang
Current literature show that frequency diverse arrays (FDAs) are able of producing range-angle-dependent and time-variant transmit beampatterns, but the resulting time and range dependencies and their characteristics are still not well understood.
no code implementations • 10 Nov 2021 • Filip Elvander, Johan Swärd, Andreas Jakobsson
In this short paper, we describe an efficient numerical solver for the optimal sampling problem considered in "Designing Sampling Schemes for Multi-Dimensional Data".
no code implementations • 5 Oct 2021 • David Svedberg, Filip Elvander, Andreas Jakobsson
In this work, we introduce a novel approach for determining a joint sparse spectrum from several non-uniformly sampled data sets, where each data set is assumed to have its own, possibly disjoint, and only partially known, sampling times.
no code implementations • 24 Mar 2020 • Filip Elvander, Andreas Jakobsson
Herein, we provide three different definitions of a concept of fundamental frequency for such inharmonic signals and study the implications of the different choices for modeling and estimation.
