Welcome!
In 2000, the Signal Processing and Speech Communication Laboratory (SPSC Lab) of Graz University of Technology (TU Graz) was founded as a research and education center in nonlinear signal processing and computational intelligence, algorithm engineering, as well as circuits & systems modeling and design. It covers applications in wireless communications, speech/audio communication, and telecommunications.
If you want to learn more about Signal Processing, click: What is Signal Processing?
The Research of SPSC Lab addresses fundamental and applied research problems in five scientific areas:
Result of the Month
Graph-based Simultaneous Localization and Bias Tracking [link]
We present a factor graph formulation and particlebased sum-product algorithm for robust localization and tracking in multipath-prone environments. The proposed sequential algorithm jointly estimates the mobile agent’s position together with a time-varying number of multipath components (MPCs). The MPCs are represented by “delay biases” corresponding to the offset between line-of-sight (LOS) component delay and the respective delays of all detectable MPCs. The delay biases of the MPCs capture the geometric features of the propagation environment with respect to the mobile agent. Therefore, they can provide position-related information contained in the MPCs without explicitly building a map of the environment. We demonstrate that the position-related information enables the algorithm to provide high-accuracy position estimates even in fully obstructed line-of-sight (OLOS) situations. Using simulated and real measurements in different scenarios we demonstrate the proposed algorithm to significantly outperform state-of-the-art multipath-aided tracking algorithms and show that the performance of our algorithm constantly attains the posterior Cram´er- Rao lower bound (P-CRLB). Furthermore, we demonstrate the implicit capability of the proposed method to identify unreliable measurements and, thus, to mitigate lost tracks.
Contact: Alexander Venus, Erik LeitingerLatest News
08 Sep 2023 Research and Teaching Associate in Signal Processing and Speech Communicartion (Two PhD position)
06 Oct 2022 Student Projects Information Event: 14.10., 15:00 (BSc SP; MSc Project and Master Theses)
22 Mar 2022 Two PhD Positions in Wireless Communications and Positioning
03 Mar 2022 Press release on AI based denoising filters
03 Mar 2022 Christian Knoll received the Josef Krainer Award for his PhD Thesis
20 Apr 2021 Press release covering the H2020 project REINDEER has been published
01 Mar 2021 Course "Array Signal Processing" starting end of May 2021
01 Jan 2021 H2020 project REINDEER has been started
20 Nov 2020 Research Positions in Wireless Communications, Positioning, and Power Transfer
30 Oct 2020 Student Projects Information Event: 14.10., 16:00 (BSc SP; MSc Project and Master Theses)
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