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A Low-complexity Noise Reduction Scheme for Target Detection in the 2D Integrated Sensing And Communication System
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A4 Artikkeli konferenssijulkaisussa
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en
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6
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2023 IEEE International Conference on Communications Workshops: Sustainable Communications for Renaissance, ICC Workshops 2023, pp. 909-914, 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.
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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.
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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