基于双频虚拟互质阵列的均匀稀疏阵列DOA估计算法OA北大核心CSCDCSTPCD
DOA Estimation Based on Virtual Co-prime Array from Dual-frequency Sparse Uniform Array
提出了一种利用双频工作模式解决均匀稀疏阵列波达方向角(DOA)估计的方法.对一个物理均匀稀疏阵列,引入一个合适的额外工作频率,通过优选阵元数量及阵元间距,构建一个虚拟稀疏阵列,使得虚拟阵元间距与相邻真实均匀稀疏阵列的阵元间距成互质关系;物理均匀稀疏阵列与虚拟阵列组合形成一个自由度更高的虚拟互质阵列,将两个频率的接收信号对应合并后进行相关处理,得到虚拟互质阵列的阵列流形相关矩阵;基于相关间隔与差协同阵阵元位置的一一对应关系,对虚拟相关矩阵进行矩阵增…查看全部>>
A DOA estimation algorithm of dual-frequency operation based on the sparse and uniform array (SUA) is proposed in this paper.By properly selecting an additional frequency,the number and the inter-element spacing of virtual elements,an additional virtual SUA is generated whose inter-element spacing is co-prime with that of the physical SUA.The physical and virtual SUAs are combined into a virtual co-prime array which provides more degrees-of-free than the num…查看全部>>
张伟;刘畅;贾勇;石荣
电子信息控制重点实验室, 成都610036电子信息控制重点实验室, 成都610036电子信息控制重点实验室, 成都610036电子信息控制重点实验室, 成都610036
信息技术与安全科学
波达方向角估计稀疏均匀阵列虚拟互质阵列双频
DOA estimationsparse uniform arrayvirtual co-prime arraydual-frequency
《现代雷达》 2018 (4)
27-30,4
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