PERFORMANCE STUDY OF CONDITIONAL AND UNCONDITIONAL DIRECTION-OF-ARRIVAL ESTIMATION
PERFORMANCE STUDY OF CONDITIONAL AND UNCONDITIONAL DIRECTION-OF-ARRIVAL ESTIMATION
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DOI：
10.1109/29.60109
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发表时间：
1990-10-01
期刊：
影响因子：
--
通讯作者：
NEHORAL, A
中科院分区：
文献类型：
--
作者：
STOICA, P;NEHORAL, A
提出了条件和无条件到达方向 (DOA) 估计的数值和分析研究。给出了DOA估计精度的无条件Cramer-Rao界和条件最大似然法的协方差矩阵的显式表达式。结果表明，许多DOA估计方法在条件和非条件模型下具有相同的渐近统计特性。讨论了两个窄带平面信号撞击均匀间隔线性阵列的情况。<>
A numerical and analytical study of conditional and unconditional direction-of-arrival (DOA) estimation is presented. Explicit expressions for the unconditional Cramer-Rao bounds on the DOA estimation accuracy and the covariance matrix of the conditional maximum likelihood method are given. It is shown that many DOA estimation methods have the same asymptotic statistical properties under conditional and unconditional models. The situation of two narrowband plane signals impinging on a uniformly spaced linear array is discussed.<>