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相关论文: Coherence-Pattern Guided Compressive Sensing with …

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Highly coherent sensing matrices arise in discretization of continuum problems such as radar and medical imaging when the grid spacing is below the Rayleigh threshold as well as in using highly coherent, redundant dictionaries as…

信息论 · 计算机科学 2015-05-30 Albert Fannjiang , Wenjing Liao

In this work, super-resolution by 4 compressive sensing methods (OMP, BP, BLOOMP, BP-BLOT) with highly coherent partial Fourier measurements is comparatively studied. An alternative metric more suitable for gauging the quality of spike…

信息论 · 计算机科学 2012-11-27 A. Fannjiang , W. Liao

Compressed sensing (CS) schemes are proposed for monostatic as well as synthetic aperture radar (SAR) imaging with chirped signals and Ultra-Narrowband (UNB) continuous waveforms. In particular, a simple, perturbation method is developed to…

数据分析、统计与概率 · 物理学 2015-06-11 Albert Fannjiang , Hsiao-Chieh Tseng

This paper proposes two novel schemes of wideband compressive spectrum sensing (CSS) via block orthogonal matching pursuit (BOMP) algorithm, for achieving high sensing accuracy in real time. These schemes aim to reliably recover the…

信号处理 · 电气工程与系统科学 2023-04-14 Liyang Lu , Wenbo Xu , Yue Wang , Zhi Tian

We introduce a learning-based algorithm to obtain a measurement matrix for compressive sensing related recovery problems. The focus lies on matrices with a constant modulus constraint which typically represent a network of analog phase…

信号处理 · 电气工程与系统科学 2021-10-15 Michael Koller , Wolfgang Utschick

Compressed sensing has a wide range of applications that include error correction, imaging, radar and many more. Given a sparse signal in a high dimensional space, one wishes to reconstruct that signal accurately and efficiently from a…

数值分析 · 数学 2009-05-28 Deanna Needell

Sparse Bayesian Learning (SBL) is a powerful framework for attaining sparsity in probabilistic models. Herein, we propose a coordinate ascent algorithm for SBL termed Relevance Matching Pursuit (RMP) and show that, as its noise variance…

机器学习 · 计算机科学 2021-06-14 Sebastian Ament , Carla Gomes

The Segment Anything Model has revolutionized image segmentation with its zero-shot capabilities, yet its reliance on manual prompts hinders fully automated deployment. While integrating object detectors as prompt generators offers a…

计算机视觉与模式识别 · 计算机科学 2026-01-30 Li Zhang , Pengtao Xie

In this paper, we develop a sublinear-time compressive sensing algorithm for approximating functions of many variables which are compressible in a given Bounded Orthonormal Product Basis (BOPB). The resulting algorithm is shown to both have…

数值分析 · 数学 2019-09-23 Bosu Choi , Mark Iwen , Toni Volkmer

Compressed Sensing (CS) is a signal processing technique which can accurately recover sparse signals from linear measurements with far fewer number of measurements than those required by the classical Shannon-Nyquist theorem. Block sparse…

信息论 · 计算机科学 2019-01-30 Haifeng Li , Jinming Wen

It has been found that radar returns of extended targets are not only sparse but also exhibit a tendency to cluster into randomly located, variable sized groups. However, the standard techniques of Compressive Sensing as applied in radar…

信息论 · 计算机科学 2014-11-17 Sanghamitra Dutta , Arijit De

State-of-the-art algorithms for sparse subspace clustering perform spectral clustering on a similarity matrix typically obtained by representing each data point as a sparse combination of other points using either basis pursuit (BP) or…

机器学习 · 计算机科学 2017-11-02 Abolfazl Hashemi , Haris Vikalo

Applications of compressed sensing motivate the possibility of using different operators to encode and decode a signal of interest. Since it is clear that the operators cannot be too different, we can view the discrepancy between the two…

数值分析 · 数学 2010-04-02 Matthew A. Herman , Deanna Needell

Autonomous navigation requires an accurate model or map of the environment. While dramatic progress in the prior two decades has enabled large-scale SLAM, the majority of existing methods rely on non-linear optimization techniques to find…

机器人学 · 计算机科学 2022-03-17 Joshua G. Mangelson , Jinsun Liu , Ryan M. Eustice , Ram Vasudevan

A novel sparse array synthesis method for non-uniform planar arrays is proposed, which belongs to compressive sensing (CS)-based systhesis. Particularly, we propose an off-grid refinement technique to simultaneously optimize the antenna…

信号处理 · 电气工程与系统科学 2022-07-29 Songjie Yang , Baojuan Liu , Zhiqin Hong , Zhongpei Zhang

Challenging indoor and urban environments with severe multipath propagation and obstructed LoS (OLoS) degrade classical radio frequency (RF) positioning. Multipath-based simultaneous localization and mapping (MP-SLAM) is a promising remedy,…

信号处理 · 电气工程与系统科学 2026-05-01 Benjamin J. B. Deutschmann , Klaus Witrisal , Erik Leitinger

The problem of finding the sparsest solution to a linear underdetermined system of equations, often appearing, e.g., in data analysis, optimal control, system identification, or sensor selection problems, is considered. This non-convex…

最优化与控制 · 数学 2026-03-17 Maya V. Marmary , Christian Grussler

Recognizing a previously visited place, also known as place recognition (or loop closure detection) is the key towards fully autonomous mobile robots and self-driving vehicle navigation. Augmented with various Simultaneous Localization and…

机器人学 · 计算机科学 2017-04-19 Ashwin Mathur , Fei Han , Hao Zhang

In this paper, we study the problem of compressed sensing using binary measurement matrices and $\ell_1$-norm minimization (basis pursuit) as the recovery algorithm. We derive new upper and lower bounds on the number of measurements to…

机器学习 · 统计学 2020-04-28 Mahsa Lotfi , Mathukumalli Vidyasagar

Constraint satisfaction problem (CSP) has been actively used for modeling and solving a wide range of complex real-world problems. However, it has been proven that developing efficient methods for solving CSP, especially for large problems,…

人工智能 · 计算机科学 2021-06-10 Zouhayra Ayadi , Wadii Boulila , Imed Riadh Farah
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