论文标题
基于最大元素间间距的新型稀疏阵列设计的研究
Study of Novel Sparse Array Design Based on the Maximum Inter-Element Spacing Criterion
论文作者
论文摘要
基于最大元素间间距（IES）约束（MISC）标准，提出了一种新型的稀疏阵列（SA）结构。与传统的MISC阵列相比，所提出的SA配置称为改进的MISC（IMISC），其均匀的自由度（UDOF）显着提高并减少了相互耦合。特别是，IMISC阵列由六个均匀的线性阵列（ULA）组成，可以由IES集确定。 IES集受两个参数约束，即最大IE和传感器数。也得出了IMISC阵列的UDOF，并且也分析了IMISC阵列的重量函数。拟议的IMISC阵列在对现有SA的UDOF方面具有很大的优势，而它们的相互耦合保持低水平。进行模拟以证明IMISC阵列的优势。
A novel sparse array (SA) structure is proposed based on the maximum inter-element spacing (IES) constraint (MISC) criterion. Compared with the traditional MISC array, the proposed SA configurations, termed as improved MISC (IMISC) has significantly increased uniform degrees of freedom (uDOF) and reduced mutual coupling. In particular, the IMISC arrays are composed of six uniform linear arrays (ULAs), which can be determined by an IES set. The IES set is constrained by two parameters, namely the maximum IES and the number of sensors. The uDOF of the IMISC arrays is derived and the weight function of the IMISC arrays is analyzed as well. The proposed IMISC arrays have a great advantage in terms of uDOF against the existing SAs, while their mutual coupling remains at a low level. Simulations are carried out to demonstrate the advantages of the IMISC arrays.
