大连理工大学学报Issue(6)：625-631,7.DOI:10.7511/dllgxb201506010
基于四阶累积量的近场源多参数联合估计
Estimation of joint multi-parameters of near-field sources based on the fourth-order cumulant
摘要
Abstract
A novel joint multi-parameters estimation method for near-field narrow-band sources is proposed.The frequencies,DOAs (direction of arrival,DOA)and ranges of near-field sources are directly estimated by the eigenvalues and the eigenvectors of the constructed fourth-order cumulant matrices.The proposed method does not require any peak search and can be applied to arbitrary Gaussian noise environment.Compared with several existing methods,the proposed method avoids the loss of array aperture and reduces the computational complexity.The comprehensive simulation results demonstrate the validity of this new method.关键词
近场源定位/四阶累积量/DOA 估计/频率估计/距离估计Key words
near-field sources localization/the fourth-order cumulant/DOA estimation/frequency estimation/range estimation分类
信息技术与安全科学引用本文复制引用
王鹏,邱天爽,李景春,谭海峰..基于四阶累积量的近场源多参数联合估计[J].大连理工大学学报,2015,(6):625-631,7.基金项目
国家自然科学基金资助项目(61139001,61172108,81241059) （61139001,61172108,81241059）
