期刊
IEEE COMMUNICATIONS LETTERS
卷 26, 期 10, 页码 2336-2339出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2022.3187661
关键词
Estimation; Multiple signal classification; Feature extraction; Transformers; Signal denoising; Antenna arrays; Location awareness; Transformer; signal denoising; non-line-of-sight; MUSIC; angle of arrival; ultra-wide bandwidth
资金
- National Key Research and Development Program of China [2020YFC1511803]
- National Natural Science Foundation of China [61871256]
The letter introduces a signal denoising network based on transformer and temporal attention to improve angle-of-arrival estimation accuracy, validated using two self-built ultra-wideband transceivers databases in indoor environments. Results indicate that the proposed network outperforms other machine learning methods in terms of angle-of-arrival estimation accuracy.
The next-generation communications impose requirements on integrated sensing and communication. However, the non-line-of-sight propagation in indoor complex environments poses great challenges to common localization techniques. In this letter, we propose a signal denoising network based on the transformer and temporal attention to improve the angle-of-arrival estimation accuracy. In the proposed network, the channel impulse response is denoised and reconstructed to mitigate errors. Then, two database are constructed based on self-built ultra-wideband transceivers in indoor environments for validation. Results show that the proposed network outperforms other machine learning methods in terms of angle-of-arrival estimation accuracy.
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