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The far-infrared (FIR) is one of the few wavelength ranges where no astronomical data with sub-arcsec resolution exist yet. Neither of the medium-term satellite projects like SPICA, Millimetron or OST will resolve this malady. Information…

The concept of the frequency diverse reconfigurable intelligent surface (FD-RIS) technology has been introduced, which can enable simultaneous implementation of distance-angle beamforming in far-field communication scenarios. In order to…

Information Theory · Computer Science 2025-12-02 Han Xiao , Xiaoyan Hu , Wenjie Wang , Kai-Kit Wong , Kun Yang , Shi Jin

Radio astronomy is entering a new era with new and future radio observatories such as the Low Frequency Array and the Square Kilometer Array. We describe in detail an automated flagging pipeline and evaluate its performance. With only a…

Instrumentation and Methods for Astrophysics · Physics 2010-07-16 A. R. Offringa , A. G. de Bruyn , S. Zaroubi , M. Biehl

Cardiac Magnetic Resonance Imaging (MRI) is time-consuming and error-prone. To ease the patient's burden and to increase the efficiency and robustness of cardiac exams, interest in methods based on continuous steady-state acquisition and…

Medical Physics · Physics 2020-10-06 Sebastian Rosenzweig , Nick Scholand , H. Christian M. Holme , Martin Uecker

The Scripted E-merlin Rfi-mitigation PipelinE for iNTerferometry (SERPent) is an automated reduction and RFI-mitigation procedure utilising the SumThreshold methodology (Offringa et al. 2010b), originally developed for the LOFAR pipeline.…

Instrumentation and Methods for Astrophysics · Physics 2014-02-03 Luke Peck , Danielle Fenech

Radio interferometry invariably suffers from an incomplete coverage of the spatial Fourier space, which leads to imaging artifacts. The current state-of-the-art technique is to create an image by Fourier-transforming the incomplete…

Instrumentation and Methods for Astrophysics · Physics 2024-12-19 F. Geyer , K. Schmidt , J. Kummer , M. Brüggen , H. W. Edler , D. Elsässer , F. Griese , A. Poggenpohl , L. Rustige , W. Rhode

Radio frequency fingerprint identification (RFFI) is an emerging device authentication technique, which exploits the hardware characteristics of the RF front-end as device identifiers. RFFI is implemented in the wireless receiver and acts…

Signal Processing · Electrical Eng. & Systems 2022-07-08 Guanxiong Shen , Junqing Zhang , Alan Marshall , Roger Woods , Joseph Cavallaro , Liquan Chen

An approach based on the Fisher information (FI) is developed to quantify the maximum information gain and optimal experimental design in neutron reflectometry experiments. In these experiments, the FI can be analytically calculated and…

Data Analysis, Statistics and Probability · Physics 2021-08-03 James H. Durant , Lucas Wilkins , Keith Butler , Joshaniel F. K. Cooper

Previous work demonstrated effective laser frequency noise (LFN) suppression for Laser Interferometer Space Antenna (LISA) data from raw phasemeter measurements using a Markov Chain Monte Carlo (MCMC) algorithm with fractional delay…

General Relativity and Quantum Cosmology · Physics 2023-05-29 Jessica Page , Tyson Littenberg

Underflight maneuvers provide a unique opportunity to harmonize calibration of on-orbit sensors. Due to their similar sensor technologies, their near-identical transmission profiles, orbital properties and platform operations, the…

Instrumentation and Methods for Astrophysics · Physics 2025-10-24 Sarah E. Kay , Brian N. Wenny

Time Delay Interferometry (TDI) is an indispensable step in the whole data processing procedure of space-based gravitational wave detection, as it mitigates the overwhelming laser frequency noise, which would otherwise completely bury the…

Instrumentation and Methods for Astrophysics · Physics 2024-07-30 Minghui Du , Pengzhan Wu , Ziren Luo , Peng Xu

Radio interferometers designed to probe the 21cm signal from Cosmic Dawn and the Epoch of Reionisation must contend with systematic effects that make it difficult to achieve sufficient dynamic range to separate the 21cm signal from…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-24 Fraser Kennedy , Philip Bull , Michael Wilensky , Jacob Burba , Samir Choudhuri

It has recently been shown that radio interferometric gain calibration can be expressed succinctly in the language of complex optimisation. In addition to providing an elegant framework for further development, it exposes properties of the…

Instrumentation and Methods for Astrophysics · Physics 2018-05-23 J. S. Kenyon , O. M. Smirnov , T. L. Grobler , S. J. Perkins

The quest for higher wireless carrier frequencies spanning the millimeter-wave (mmWave) and Terahertz (THz) bands heralds substantial enhancements in data throughput and spectral efficiency for next-generation wireless networks. However,…

Signal Processing · Electrical Eng. & Systems 2025-08-13 Sicong Ye , Yulan Gao , Ming Xiao , Peng Wang , Marios Poulakis , Ulrik Imberg

Recent advances in deep learning have significantly elevated weather prediction models. However, these models often falter in real-world scenarios due to their sensitivity to spatial-temporal shifts. This issue is particularly acute in…

Machine Learning · Computer Science 2023-12-04 Lu Han , Xu-Yang Chen , Han-Jia Ye , De-Chuan Zhan

In recent works, sparse models and convex optimization techniques have been applied to radio-interferometric (RI) imaging showing the potential to outperform state-of-the-art imaging algorithms in the field. In this talk, I will review our…

Instrumentation and Methods for Astrophysics · Physics 2015-02-19 Rafael E. Carrillo , Jason D. McEwen , Yves Wiaux

We describe the processing of data from the Low Frequency Instrument (LFI) used in production of the Planck Early Release Compact Source Catalogue (ERCSC). In particular, we discuss the steps involved in reducing the data from telemetry…

Instrumentation and Methods for Astrophysics · Physics 2016-08-14 A. Zacchei , D. Maino , C. Baccigalupi , M. Bersanelli , A. Bonaldi , L. Bonavera , C. Burigana , R. C. Butler , F. Cuttaia , G. de Zotti , J. Dick , M. Frailis , S. Galeotta , J. González-Nuevo , K. M. Górski , A. Gregorio , E. Keihänen , R. Keskitalo , J. Knoche , H. Kurki-Suonio , C. R. Lawrence , S. Leach , J. P. Leahy , M. López-Caniego , N. Mandolesi , M. Maris , F. Matthai , P. R. Meinhold , A. Mennella , G. Morgante , N. Morisset , P. Natoli , F. Pasian , F. Perrotta , G. Polenta , T. Poutanen , M. Reinecke , S. Ricciardi , R. Rohlfs , M. Sandri , A. -S. Suur-Uski , J. A. Tauber , D. Tavagnacco , L. Terenzi , M. Tomasi , J. Valiviita , F. Villa , A. Zonca , A. J. Banday , R. B. Barreiro , J. G. Bartlett , N. Bartolo , L. Bedini , K. Bennett , P. Binko , J. Borrill , F. R. Bouchet , M. Bremer , P. Cabella , B. Cappellini , X. Chen , L. Colombo , M. Cruz , A. Curto , L. Danese , R. D. Davies , R. J. Davis , G. de Gasperis , A. de Rosa , G. de Troia , C. Dickinson , J. M. Diego , S. Donzelli , U. Dörl , G. Efstathiou , T. A. Enßlin , H. K. Eriksen , M. C. Falvella , F. Finelli , E. Franceschi , T. C. Gaier , F. Gasparo , R. T. Génova-Santos , G. Giardino , F. Gómez , A. Gruppuso , F. K. Hansen , R. Hell , D. Herranz , W. Hovest , M. Huynh , J. Jewell , M. Juvela , T. S. Kisner , L. Knox , A. Lähteenmäki , J. -M. Lamarre , R. Leonardi , J. León-Tavares , P. B. Lilje , P. M. Lubin , G. Maggio , D. Marinucci , E. Martínez-González , M. Massardi , S. Matarrese , M. T. Meharga , A. Melchiorri , M. Migliaccio , S. Mitra , A. Moss , H. U. Nørgaard-Nielsen , L. Pagano , R. Paladini , D. Paoletti , B. Partridge , D. Pearson , V. Pettorino , D. Pietrobon , G. Prézeau , P. Procopio , J. -L. Puget , C. Quercellini , J. P. Rachen , R. Rebolo , G. Robbers , G. Rocha , J. A. Rubiño-Martín , E. Salerno , M. Savelainen , D. Scott , M. D. Seiffert , J. I. Silk , G. F. Smoot , J. Sternberg , F. Stivoli , R. Stompor , G. Tofani , L. Toffolatti , J. Tuovinen , M. Türler , G. Umana , P. Vielva , N. Vittorio , C. Vuerli , L. A. Wade , R. Watson , S. D. M. White , A. Wilkinson

Intelligent reflecting surface (IRS) has drawn a lot of attention recently as a promising new solution to achieve high spectral and energy efficiency for future wireless networks. By utilizing massive low-cost passive reflecting elements,…

Information Theory · Computer Science 2022-10-17 Ming-Min Zhao , Qingqing Wu , Min-Jian Zhao , Rui Zhang

Full Waveform Inversion (FWI) is an advanced geophysical inversion technique. In fields such as oil exploration and geology, FWI is used for providing images of subsurface structures with higher resolution. The conventional algorithm…

Geophysics · Physics 2023-11-06 Jiahang Li , Hitoshi Mikada , Junichi Takekawa

We present the characterization and definitive flux calibration of the Far-Infrared Field Integral Line Spectrometer (FIFI-LS) instrument on-board SOFIA. The work is based on measurements made in the laboratory with an internal calibrator…

Instrumentation and Methods for Astrophysics · Physics 2023-10-03 Dario Fadda , Sebastian Colditz , Christian Fischer , William D. Vacca , Jason Chu , Melanie Clarke , Randolf Klein , Alfred Krabbe , Robert Minchin , Albrecht Poglitsch