一种交互式图形工具用于检查在单传感器故障下的双冗余稀疏阵列(TFRSAs)的共阵连续性
An Interactive Graphical Tool to Check the Coarray Continuity of Two-Fold Redundant Sparse Arrays (TFRSAs) Under Single Sensor Failures
AI总结:
本文提出一种交互式图形工具,用于验证双冗余稀疏阵列在单传感器故障下的共阵连续性,通过MATLAB开发的GUI提供全面框架和示例验证,确保阵列配置的冗余性。
摘要:
本文提出了一种交互式图形工具,用于验证双冗余稀疏阵列在单传感器故障下的共阵连续性,通过MATLAB开发的GUI提供全面框架和示例验证,确保阵列配置的冗余性。
英文摘要:
Two-fold redundant sparse arrays possess inbuilt redundancy to tackle single-element failures. This property enables them to perform accurate direction of arrival (DOA) estimation even during single sensor faults. However, recent literature suggests that some TFRSAs suffer from hidden dependencies whereby a single sensor fault at peculiar positions within the array cause discontinuities (holes) in the difference coarray (DCA). This violates the very idea of providing two-fold redundancy. Such hidden dependencies could prove catastrophic in many critical applications such as defense, autonomous driving, and biomedical imaging. Despite this issue, no formal tools or techniques exist to ascertain whether a given array configuration is truly twofold redundant or not. To address this gap, we provide a comprehensive framework and a first-ever graphical user interface (GUI). The GUI has been built using the features in MATLAB app designer and tested with known examples available in sparse array literature. Several numerical examples have been discussed to check the tool's response in each scenario. We conclude that the GUI is functionally accurate and can be an indispensable tool for sparse array designers in making informed choices about array configurations prior to real deployment.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。