武汉工程大学学报2013，Vol.35Issue(3)：75-78,4.DOI:10.3969/j.issn.1674-2869.2013.03.016
均匀圆阵下单个近场源信号四维参数估计快速算法
Fast algorithm for four-dimensional parameter estimation of single near-field source with uniform circular array
摘要
Abstract
A least squares (LS) algorithm for 4-D parameter estimation was proposed based on a single near-field source impinging on a uniform circular array (UCA). By exploiting the centro-symmetric of the UCA, two correlation sequences were devised. The first one, which contained the azimuth & elevation angles, and the carrier frequency information of the source, was constructed via dislocation multiplying method. The second one, which contained range parameter, was directly obtained by the symmetric structure. The azimuth & elevation angles and frequency parameters were estimated by the first sequence, and then the unknown range was given from the estimated parameters by the second one. Simulation results indicate that the proposed method has a less the same estimation performance compared with the conventional 3-D MUSIC method, but its computation is more effective.关键词
近场源定位/最小二乘/重信号分类算法/均匀圆阵Key words
near-field source localization/ least square/ multiple signal classification method/ uniform circular array分类
信息技术与安全科学引用本文复制引用
吴云韬,张彦斌,曹辉,汪海..均匀圆阵下单个近场源信号四维参数估计快速算法[J].武汉工程大学学报,2013,35(3):75-78,4.基金项目
国家自然科学基金(61172150) （61172150）
湖北省高等学校优秀中青年科技创新团队计划项目联合资助(T201206) （T201206）
