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Beyond cosmic noon, galaxies appear as faint whispers amid noise, yet this epoch is key to understanding massive galaxy assembly. ALMA's sensitivity to cold dust and [C II] emission allows us to probe their interstellar medium, but faint…

Analysing extended emission in photometric observations of star-forming regions requires maps free from compact foreground, embedded, and background sources, which can interfere with various techniques used to characterise the interstellar…

天体物理仪器与方法 · 物理学 2025-04-02 M. Madarász , G. Marton , I. Gezer , S. Lehner , J. Roquette , M. Audard , D. Hernandez , O. Dionatos

Localization is a key challenge in many robotics applications. In this work we explore LIDAR-based global localization in both urban and natural environments and develop a method suitable for online application. Our approach leverages…

机器人学 · 计算机科学 2023-02-01 Georgi Tinchev , Adrian Penate-Sanchez , Maurice Fallon

A novel application of machine-learning (ML) based image processing algorithms is proposed to analyze an all-sky map (ASM) obtained using the Fermi Gamma-ray Space Telescope. An attempt was made to simulate a one-year ASM from a…

高能天体物理现象 · 物理学 2021-06-02 Shogo Sato , Jun Kataoka , Soichiro Ito , Jun'ichi Kotoku , Masato Taki , Asuka Oyama , Takaya Toyoda , Yuki Nakamura , Marino Yamamoto

Radio source detection through conventional algorithms has been unreliable when trying to solve for large number of sources in the presence of low SINR and less number of snapshots. We address this by reformulating source detection as a…

信号处理 · 电气工程与系统科学 2023-02-02 Jayakrishnan Vijayamohanan , Arjun Gupta , Oameed Noakoasteen , Sotirios Goudos , Christos Christodoulou

We present an end-to-end simulation and data-processing framework for digital beamforming experiments conducted with four stations of the 21 Centimeter Array (21CMA). Motivated by the need to characterize instrumental systematics, such as…

天体物理仪器与方法 · 物理学 2026-03-04 Feiyu Zhao , Quan Guo , Junhua Gu , Qian Zheng , Yan Huang , Yun Yu

Traditional beamforming of medical ultrasound images relies on sampling rates significantly higher than the actual Nyquist rate of the received signals. This results in large amounts of data to store and process, imposing hardware and…

图像与视频处理 · 电气工程与系统科学 2021-11-09 Alon Mamistvalov , Ariel Amar , Naama Kessler , Yonina C. Eldar

Complicated image registration is a key issue in medical image analysis, and deep learning-based methods have achieved better results than traditional methods. The methods include ConvNet-based and Transformer-based methods. Although…

计算机视觉与模式识别 · 计算机科学 2024-10-29 Runshi Zhang , Hao Mo , Junchen Wang , Bimeng Jie , Yang He , Nenghao Jin , Liang Zhu

This work discusses a novel method for estimating the location of a gas source based on spatially distributed concentration measurements taken, e.g., by a mobile robot or flying platform that follows a predefined trajectory to collect…

We present a new approach for the identification of ultra-high energy cosmic rays from sources using dynamic graph convolutional neural networks. These networks are designed to handle sparsely arranged objects and to exploit their short-…

高能天体物理现象 · 物理学 2020-12-09 Teresa Bister , Martin Erdmann , Jonas Glombitza , Niklas Langner , Josina Schulte , Marcus Wirtz

Guided ultrasonic wave localization uses spatially distributed multistatic sensor arrays and generalized beamforming strategies to detect and locate damage across a structure. The propagation channel is often very complex. Methods can…

信号处理 · 电气工程与系统科学 2024-10-30 Ishan D. Khurjekar , Joel B. Harley

While UWB-based methods can achieve high localization accuracy in small-scale areas, their accuracy and reliability are significantly challenged in large-scale environments. In this paper, we propose a learning-based framework named ULOC…

机器人学 · 计算机科学 2024-09-18 Thien-Minh Nguyen , Yizhuo Yang , Tien-Dat Nguyen , Shenghai Yuan , Lihua Xie

This paper proposes a new sparse array source enumeration algorithm for underdetermined scenarios with more sources than sensors. The proposed algorithm decomposes the wideband signals into multiple uncorrelated frequency bands, computes…

信号处理 · 电气工程与系统科学 2019-12-30 Yang Liu , John R. Buck

Multi-modal perception is essential for unmanned aerial vehicle (UAV) operations, as it enables a comprehensive understanding of the UAVs' surrounding environment. However, most existing multi-modal UAV datasets are primarily biased toward…

Research in the field of autonomous Unmanned Aerial Vehicles (UAVs) has significantly advanced in recent years, mainly due to their relevance in a large variety of commercial, industrial, and military applications. However, UAV navigation…

计算机视觉与模式识别 · 计算机科学 2020-02-03 Akkas Haque , Ahmed Elsaharti , Tarek Elderini , Mohamed Atef Elsaharty , Jeremiah Neubert

In this paper, we present an efficient visual SLAM system designed to tackle both short-term and long-term illumination challenges. Our system adopts a hybrid approach that combines deep learning techniques for feature detection and…

机器人学 · 计算机科学 2025-02-28 Kuan Xu , Yuefan Hao , Shenghai Yuan , Chen Wang , Lihua Xie

The Euclid Space Telescope will provide deep imaging at optical and near-infrared wavelengths, along with slitless near-infrared spectroscopy, across ~15,000 sq deg of the sky. Euclid is expected to detect ~12 billion astronomical sources,…

天体物理仪器与方法 · 物理学 2023-03-15 Euclid Collaboration , A. Humphrey , L. Bisigello , P. A. C. Cunha , M. Bolzonella , S. Fotopoulou , K. Caputi , C. Tortora , G. Zamorani , P. Papaderos , D. Vergani , J. Brinchmann , M. Moresco , A. Amara , N. Auricchio , M. Baldi , R. Bender , D. Bonino , E. Branchini , M. Brescia , S. Camera , V. Capobianco , C. Carbone , J. Carretero , F. J. Castander , M. Castellano , S. Cavuoti , A. Cimatti , R. Cledassou , G. Congedo , C. J. Conselice , L. Conversi , Y. Copin , L. Corcione , F. Courbin , M. Cropper , A. Da Silva , H. Degaudenzi , M. Douspis , F. Dubath , C. A. J. Duncan , X. Dupac , S. Dusini , S. Farrens , S. Ferriol , M. Frailis , E. Franceschi , M. Fumana , P. Gomez-Alvarez , S. Galeotta , B. Garilli , W. Gillard , B. Gillis , C. Giocoli , A. Grazian , F. Grupp , L. Guzzo , S. V. H. Haugan , W. Holmes , F. Hormuth , K. Jahnke , M. Kummel , S. Kermiche , A. Kiessling , M. Kilbinger , T. Kitching , R. Kohley , M. Kunz , H. Kurki-Suonio , S. Ligori , P. B. Lilje , I. Lloro , E. Maiorano , O. Mansutti , O. Marggraf , K. Markovic , F. Marulli , R. Massey , S. Maurogordato , H. J. McCracken , E. Medinaceli , M. Melchior , M. Meneghetti , E. Merlin , G. Meylan , L. Moscardini , E. Munari , R. Nakajima , S. M. Niemi , J. Nightingale , C. Padilla , S. Paltani , F. Pasian , K. Pedersen , V. Pettorino , S. Pires , M. Poncet , L. Popa , L. Pozzetti , F. Raison , A. Renzi , J. Rhodes , G. Riccio , E. Romelli , M. Roncarelli , E. Rossetti , R. Saglia , D. Sapone , B. Sartoris , R. Scaramella , P. Schneider , M. Scodeggio , A. Secroun , G. Seidel , C. Sirignano , G. Sirri , L. Stanco , P. Tallada-Crespi , D. Tavagnacco , A. N. Taylor , I. Tereno , R. Toledo-Moreo , F. Torradeflot , I. Tutusaus , L. Valenziano , T. Vassallo , Y. Wang , J. Weller , A. Zacchei , J. Zoubian , S. Andreon , S. Bardelli , A. Boucaud , R. Farinelli , J. Gracia-Carpio , D. Maino , N. Mauri , S. Mei , N. Morisset , F. Sureau , M. Tenti , A. Tramacere , E. Zucca , C. Baccigalupi , A. Balaguera-Antolinez , A. Biviano , A. Blanchard , S. Borgani , E. Bozzo , C. Burigana , R. Cabanac , A. Cappi , C. S. Carvalho , S. Casas , G. Castignani , C. Colodro-Conde , A. R. Cooray , J. Coupon , H. M. Courtois , O. Cucciati , S. Davini , G. De Lucia , H. Dole , J. A. Escartin , S. Escoffier , M. Fabricius , M. Farina , F. Finelli , K. Ganga , J. Garcia-Bellido , K. George , F. Giacomini , G. Gozaliasl , I. Hook , M. Huertas-Company , B. Joachimi , V. Kansal , A. Kashlinsky , E. Keihanen , C. C. Kirkpatrick , V. Lindholm , G. Mainetti , R. Maoli , S. Marcin , M. Martinelli , N. Martinet , M. Maturi , R. B. Metcalf , G. Morgante , A. A. Nucita , L. Patrizii , A. Peel , J. E. Pollack , V. Popa , C. Porciani , D. Potter , P. Reimberg , A. G. Sanchez , M. Schirmer , M. Schultheis , V. Scottez , E. Sefusatti , J. Stadel , R. Teyssier , C. Valieri , J. Valiviita , M. Viel , F. Calura , H. Hildebrandt

Beamforming design for extremely large-scale multiple-input multiple-output (XL-MIMO) systems is challenging due to prohibitive computational complexity and complex near-field propagation effects. To address this, this paper introduces a…

信息论 · 计算机科学 2026-04-13 Xiyuan Liu , Qingqing Wu , Rui Wang , Qiaoyan Peng , Jun Wu

Ultrasound Localization Microscopy (ULM) enables imaging of vascular structures in the micrometer range by accumulating contrast agent particle locations over time. Precise and efficient target localization accuracy remains an active…

图像与视频处理 · 电气工程与系统科学 2023-11-08 Christopher Hahne , Georges Chabouh , Olivier Couture , Raphael Sznitman

To address the ever-growing connectivity demands of wireless communications, the adoption of ingenious solutions, such as Unmanned Aerial Vehicles (UAVs) as mobile Base Stations (BSs), is imperative. In general, the location of a UAV Base…

网络与互联网体系结构 · 计算机科学 2022-04-12 Ali Murat Demirtas , Mehmet Saygin Seyfioglu , Irem Bor-Yaliniz , Bulent Tavli , Halim Yanikomeroglu