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arXiv 2603.00633eess.SP
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复值数据的FDR控制及其在单快照多源检测和DOA估计中的应用

FDR Control for Complex-Valued Data with Application in Single Snapshot Multi-Source Detection and DOA Estimation

Technische Universität Darmstadt(达姆施塔特工业大学)

Fabian Scheidt, Jasin Machkour, Michael Muma

AI总结:

本文提出了一种复值数据FDR控制方法,用于单快照多源检测和DOA估计,通过优化多个随机实验融合提升变量选择效率。

摘要:

虚假发现率(FDR)控制是一种维护统计分析完整性的流行方法,特别是在高维数据设置中,其中多重比较会增加假阳性风险。FDR控制已被广泛研究用于实值数据。然而,复值数据情况,这在许多信号处理应用中都很相关,仍广泛未被探索。因此,我们提出了一种快速且能控制FDR的变量选择器,用于复值高维数据。所提出的复值终止随机实验(CT-Rex)选择器在用户定义的目标FDR下最大化所选变量的数量。这通过优化多个提前终止复值随机实验的解决方案的融合来实现。我们在稀疏复值回归模拟研究中评估了该方法的性能,并展示了一个FDR控制的压缩感知基单快照多源检测和到达方向(DOA)估计的例子。所提出的工作适用于DOA估计、通信、机械工程和磁共振成像等广泛的研究领域,填补了复值数据信号处理中的关键空白。

英文摘要:

False discovery rate (FDR) control is a popular approach for maintaining the integrity of statistical analyses, especially in high-dimensional data settings, where multiple comparisons increase the risk of false positives. FDR control has been extensively researched for real-valued data. However, the complex data case, which is relevant for many signal processing applications, remains widely unexplored. We therefore present a fast and FDR-controlling variable selector for complex-valued high-dimensional data. The proposed Complex-Valued Terminating-Random Experiments (CT-Rex) selector controls a user-defined target FDR while maximizing the number of selected variables. This is achieved by optimally fusing the solutions of multiple early terminated complex-valued random experiments. We benchmark the performance in sparse complex regression simulation studies and showcase an example of FDR-controlled compressed-sensing-based single snapshot multi-source detection and direction of arrival (DOA) estimation. The proposed work applies to a wide range of research areas, such as DOA estimation, communications, mechanical engineering, and magnetic resonance imaging, bridging a critical gap in signal processing for complex-valued data.

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。

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