论文标题
RIS-ADMM：一种基于RIS和ADMM的被动和稀疏感应方法，干扰了
RIS-ADMM: A RIS and ADMM-Based Passive and Sparse Sensing Method With Interference Removal
论文作者
论文摘要
可重新配置的智能表面（RIS）在未来的雷达和无线通信域中成为有前途的技术。这封信解决了使用无线通信信号和RIS中的无线访问点（APS）干扰的被动传感问题。我们引入了一种原子规范最小化（ANM）方法来利用空间域目标稀疏性并估计到达方向（DOA）。但是，用于ANM问题的常规半决赛（SDP）解决方案是复杂的，缺乏有效的实现。因此，我们提出了一种RIS-ADMM方法，这是一种创新的乘数交替方向方法（ADMM）的迭代方法。该方法产生封闭形式的表达式并有效抑制干扰信号。仿真结果肯定，我们的RIS-ADMM方法在DOA估计准确性中超过了现有技术，同时保持低计算复杂性。该方法的代码可在线获得\ url {https://github.com/chenpengseu/ris-admm.git}。
Reconfigurable Intelligent Surfaces (RIS) emerge as promising technologies in future radar and wireless communication domains. This letter addresses the passive sensing issue utilizing wireless communication signals and RIS amidst interference from wireless access points (APs). We introduce an atomic norm minimization (ANM) approach to leverage spatial domain target sparsity and estimate the direction of arrival (DOA). However, the conventional semidefinite programming (SDP)-based solutions for the ANM problem are complex and lack efficient realization. Consequently, we propose a RIS-ADMM method, an innovative alternating direction method of multipliers (ADMM)-based iterative approach. This method yields closed-form expressions and effectively suppresses interference signals. Simulation outcomes affirm that our RIS-ADMM method surpasses existing techniques in DOA estimation accuracy while maintaining low computational complexity. The code for the proposed method is available online \url{https://github.com/chenpengseu/RIS-ADMM.git}.
