西安电子科技大学学报（自然科学版）2017，Vol.44Issue(5)：184-188,5.DOI:10.3969/j.issn.1001-2400.2017.05.031
近场散射环境下的稳健自适应波束形成
Robust adaptive beamforming with near-field scatterers
摘要
Abstract
Near-field scattering which causes steering vector mismatch with array received data suffers severe performance degradation with beamforming.A new robust adaptive beamforming algorithm based on the steering vector uncertainty set is proposed to utilize the near-field scattering signal to improve the beamforming output signal-to-noise ratio.The properties of the far-field direct-path signal and near-field signal are incorporated.The large uncertainty set is divided into two small ones describing the far-field and near-field steering vectors, respectively. The far-field steering vectors and the near-field scattering coefficient with a transform matrix are evaluated by convex optimization.Simulation examples demonstrate that the algorithm is correct and effective.关键词
稳健自适应波束形成/近场散射/阵列信号处理/不确定集Key words
robust adaptive beamforming/near-field scattering/array signal processing/uncertainty set分类
信息技术与安全科学引用本文复制引用
廖瑞乾,许京伟,廖桂生..近场散射环境下的稳健自适应波束形成[J].西安电子科技大学学报（自然科学版）,2017,44(5):184-188,5.基金项目
国家自然科学基金资助项目(61231017) （61231017）
