A Low-complexity Noise Reduction Scheme for Target Detection in the 2D Integrated Sensing And Communication System

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Journal Title
Journal ISSN
Volume Title
Conference article in proceedings
Date
2023
Major/Subject
Mcode
Degree programme
Language
en
Pages
6
909-914
Series
2023 IEEE International Conference on Communications Workshops, IEEE International Conference on Communications Workshops
Abstract
This paper deals with low-complexity noise reduction for linear frequency modulated continuous-wave (FMCW) signals in the multiple input multiple output integrated sensing and communication system. The conventional low-rank filter, which significantly reduces the noise, becomes impractical for two-dimensional (2D) arrays because of the huge computational burden caused by the 2D eigen value decomposition (EVD). To address the computational issue, first a low-complexity filter with two separated one-dimensional low-rank filters is proposed so that the high-complexity EVD can be avoided. Furthermore, a discrete cosine transform-based filter is proposed to achieve an efficient denoising performance without the need for accurate estimations of sample covariance matrix. The simulation results illustrate that: i) our scheme improves the denoising performance with a low complexity and it is practically feasible; ii) decreasing the rank leads to a higher output signal to noise ratio of the target, which further results in a better detection probability.
Description
Funding Information: This work is supported by the Fundamental Research Funds for the Central Universities 2022JBXT001, 2022JBQY004, and the State Key Laboratory of Rail Traffic Control and Safety (Contract: No.RCS2022ZT015 ), NSFC under Grant 62271043, and Beijing Natural Science Foundation L221009. Publisher Copyright: © 2023 IEEE.
Keywords
integrated sensing and communication (ISAC), millimeter wave (mmWave), Noise reduction, target detection
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Citation
Zhu , L , Liu , Y , He , D , Vorobyov , S A & Zhong , Z 2023 , A Low-complexity Noise Reduction Scheme for Target Detection in the 2D Integrated Sensing And Communication System . in 2023 IEEE International Conference on Communications Workshops : Sustainable Communications for Renaissance, ICC Workshops 2023 . IEEE International Conference on Communications Workshops , IEEE , pp. 909-914 , IEEE International Conference on Communications Workshops , Rome , Italy , 28/05/2023 . https://doi.org/10.1109/ICCWorkshops57953.2023.10283759