移动通信2025，Vol.49Issue(4)：49-54,6.DOI:10.3969/j.issn.1006-1010.20250224-0001
基于ESPRIT算法的可移动天线系统信道估计
ESPRIT-Based Channel Estimation Scheme for Movable Antenna Systems
摘要
Abstract
Movable antenna(MA)technology presents a novel paradigm for enhancing wireless communication system performance.To address the channel estimation challenges in MA enabled systems,this paper proposes an Estimation of Signal Parameters via Rotational Invariance Techniques(ESPRIT)-based channel estimation method.Different from conventional synchronous pilot transmission schemes with fixed antenna positions,the proposed scheme first optimizes the transmission frame structure and pilot allocation strategy according to the movable region of the antenna array.Subsequently,a multi-frame displacement sampling mechanism is employed to achieve uplink pilot reception under dynamic antenna positioning during each transmission frame.By constructing a high-dimensional virtual array model from the received signals,the azimuth angle estimation is accomplished through the ESPRIT algorithm,followed by channel gain estimation using the least squares(LS)method,ultimately realizing accurate channel reconstruction.Simulation results demonstrate that the proposed scheme achieves significantly lower channel estimation error compared to other benchmark schemes.关键词
可移动天线/ESPRIT算法/信道估计Key words
movable antenna/ESPRIT/channel estimation分类
电子信息工程引用本文复制引用
聂皓旸,游昌盛,周超,梅渭东..基于ESPRIT算法的可移动天线系统信道估计[J].移动通信,2025,49(4):49-54,6.基金项目
重点研发青年项目"面向太赫兹的可移动天线器件与通信技术研究"(2024YFB2907900) （2024YFB2907900）
