Compressing two ways: the initial study of an underwater inflatable co-prime sonar array (UICSA)
Compressing two ways: the initial study of an underwater inflatable co-prime sonar array (UICSA)
复制标题
两种压缩方式：水下充气共质声纳阵列（UIICSA）的初步研究
DOI：
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
F. Ahmad
中科院分区：
文献类型：
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作者：
B. Ouyang;Yanjun Li;Tongdi Zhou;T. Su;F. Dalgleish;A. Dalgleish;F. Ahmad
在许多科学和国防监视任务中，减小传感系统的尺寸、重量和功率 (SWaP) 对于实现预期目标至关重要。在后端，压缩传感（CS）已被广泛采用，以较少的测量来保持信号保真度，从而降低硬件复杂性。另一方面，通过智能机械设计也可以实现SWaP的减少。在本文中，我们讨论了一种新颖的系统概念，即水下充气共质声纳阵列（UICSA），它在两个方面提供 SWaP 压缩。首先，声纳阵列被实现为充气结构，也称为可展开结构，它是具有紧凑存放尺寸的折叠包装。折叠后的包装可以从承载平台上拆卸下来，并且可以在目的地变形为最终的结构形式。其次，采用稀疏阵列配置，即互质阵列，对于给定数量的传感器，与传统的均匀半波长间隔阵列相比，它可以解析更多数量的源。这两个概念的结合导致声纳阵列的收纳尺寸和所使用的水听器数量的同时减少。我们描述了 UIICSA 原型的开发，并提供了使用通过开发的原型获取的初始数据集获得的水下源到达方向估计。
In many scientific and defense surveillance missions, reducing the size, weight, and power (SWaP) of sensing systems is critical to accomplishing the intended objectives. At the backend, compressive sensing (CS) has been widely adopted to maintain the signal fidelity with less measurements, thereby reducing the hardware complexity. On the other hand, SWaP reduction can also be achieved with intelligent mechanical design. In this paper, we discuss a novel system concept, namely, Underwater Inflatable Co-prime Sonar Array (UICSA), which provides SWaP compression on two fronts. First, the sonar array is implemented as an inflatable structure, also referred to as a deployable structure, which is a folded package with compact stowed dimension. The folded package can be detached from a carrying platform and it can morph into its final structure form at the destination. Second, a sparse array configuration, namely, a co-prime array, is employed, which can resolve a much higher number of sources compared to a conventional uniform half-wavelength spaced array for a given number of sensors. The integration of these two concepts leads to a simulatenous reduction in the stowed dimension of the sonar array and the number of employed hydrophones. We describe the development of a UICSA prototype and provide underwater source direction-of-arrival estimates obtained using initial datasets acquired with the developed prototype.
DOI：
10.1109/jstsp.2015.2464177
发表时间：
2015-12-01
影响因子：
7.5
作者：
Leigsnering, Michael;Ahmad, Fauzia;Zoubir, Abdelhak M.
通讯作者：
Zoubir, Abdelhak M.