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Artificial Neural Network for Direction-of-Arrival Estimation and Secure Wireless Communications Via Space-Time-Coding Digital Metasurfaces
저자
Chen X.Q.,Zhang L.,Liu S.,Cui T.J.
학술지명
Advanced Optical Materials
출판/발행연도
2022
주제
요약
본 연구는 공간-시간 코딩 디지털 메타표면과 인공 신경망(ANN)을 결합하여 방향 도착 추정의 한계를 극복하는 효율적인 방법을 제시합니다. 제안하는 방법은 위상 정보 없이 조화 진폭만을 활용하여 ANN 기반의 방향 도착 추정을 통해 높은 정확도를 달성하며, 하드웨어 구조를 단순화하고 계산 자원 요구량을 줄입니다. 시뮬레이션 및 측정 데이터를 활용한 ANN 모델 검증을 통해 무선 감지, 통신, 레이더 등 다양한 분야에 적용 가능성을 확인했습니다.
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