5 research outputs found
A Reconfigurable Processor for Heterogeneous Multi-Core Architectures
A reconfigurable processor is a general-purpose processor coupled with an FPGA-like reconfigurable fabric. By deploying application-specific accelerators, performance for a wide range of applications can be improved with such a system. In this work concepts are designed for the use of reconfigurable processors in multi-tasking scenarios and as part of multi-core systems
CRAP: Clutter Removal with Acquisitions Under Phase Noise
The emergence of Integrated Sensing and Communication (ISAC) in future 6G
networks comes with a variety of challenges to be solved. One of those is
clutter removal, which should be applied to remove the influence of unwanted
components, scattered by the environment, in the acquired sensing signal. While
legacy radar systems already implement different clutter removal algorithms,
ISAC requires techniques that are tailored to the envisioned use cases and the
specific challenges that communications deployments bring along, like phase
noise due to clock errors between transmitter and receiver. To that end, in
this work we introduce Clutter Removal with Acquisitions Under Phase Noise
(CRAP). We propose to vectorize the time-frequency channel acquired in a radio
frame in a high-dimensional space. In an offline clutter acquisition step,
singular value decomposition is used to determine the major clutter components.
At runtime, the clutter is then estimated and removed by a subspace projection
of the acquired radio frame onto the clutter components.
Simulation results prove that CRAP offers benefits over prior art techniques
robust to phase noise. In particular, our proposal does not suppress zero
Doppler information, thereby enabling the detection of slow targets. Moreover,
we show CRAP's real-time applicability in a millimeter-wave ISAC proof of
concept, where a pedestrian is tracked in a cluttered lab environment.Comment: 8 pages, 6 figures. This work has been submitted to the IEEE for
possible publication. Copyright may be transferred without notice, after
which this version may no longer be accessibl