论文标题
增强的低固定限制阵列，以实现到达估计的方向
Enhanced Low-Redundancy Restricted Array for Direction of Arrival Estimation
论文作者
论文摘要
传感器阵列在到达方向（DOA）估计方向上起重要作用。具体而言，需要低冗余和减少相互耦合的阵列。在本文中，我们研究了传感器阵列配置，该配置具有受限的传感器间距并提出封闭式表达式。我们还提出了几类低冗余（LR）阵列。有趣的是，与超级嵌套阵列（SNA）和最大元素间间距约束（MISC）阵列相比，提议的阵列之一的冗余比和相互耦合都显着降低。还进行了数值模拟，以验证所提出的阵列优于已知稀疏阵列的优越性，在重量函数，相互耦合矩阵以及DOA估计性能方面。
Sensor arrays play a significant role in direction of arrival (DOA) estimation. Specifically, arrays with low redundancy and reduced mutual coupling are desirable. In this paper, we investigate a sensor array configuration that has a restricted sensor spacing and propose a closed-form expression. We also propose several classes of low redundancy (LR) arrays. Interestingly, compared with super nested arrays (SNA) and maximum inter-element spacing constraint (MISC) arrays, one of the proposed arrays has a significant reduction in both redundancy ratio and mutual coupling. Numerical simulations are also conducted to verify the superiority of the proposed array over the known sparse arrays in terms of weight functions, mutual coupling matrices as well and DOA estimation performance.
