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We develop a tool for the analysis of stochastic gravitational wave backgrounds from cosmological first-order phase transitions with LISA: we initiate a template databank for these signals, prototype their searches, and forecast their…

We present six nearly full-sky maps made from data taken by radiometers on the Juno satellite during its 5-year flight to Jupiter. The maps represent integrated emission over $\sim 4\%$ passbands spaced approximately in octaves between 600…

天体物理仪器与方法 · 物理学 2025-03-31 Christopher Anderson , Philippe Berger , Tzu-Ching Chang , Olivier Doré , Shannon Brown , Steve Levin , Michael Seiffert

Machine learning is a useful tool for identifying radio pulses from cosmic-ray air showers and for cleaning such pulses from radio background. This can lower the detection threshold and increase the accuracy for the pulse time and…

天体物理仪器与方法 · 物理学 2025-02-28 Frank G. Schroeder , Abdul Rehman

The space mission LISA (Laser Interferometer Space Antenna), scheduled for launch in 2035, aims to detect gravitational wave (GW) signals in the milli-Hz band. In the context of ESA Voyage 2050 Call for new mission concepts, other frequency…

高能天体物理现象 · 物理学 2025-10-22 Alice Perego , Matteo Bonetti , Alberto Sesana , Silvia Toonen , Valeriya Korol

In-orbit automated servicing is a promising path towards lowering the cost of satellite operations and reducing the amount of orbital debris. For this purpose, we present a pipeline for automated satellite docking port detection and state…

We describe the development of a noise-temperature testing capability for phased-array antennas operating in receive mode from 0.7 GHz to 1.8 GHz. Sampled voltages from each array port were recorded digitally as the zenith-pointing array…

天体物理仪器与方法 · 物理学 2014-04-04 Aaron Chippendale , Douglas Hayman , Stuart Hay

We present the map of the artificial sky brightness in Europe in V band with a resolution of approximately 1 km. The aim is to understand the state of night sky pollution in Europe, to quantify the present situation and to allow future…

天体物理学 · 物理学 2007-05-23 P. Cinzano , F. Falchi , C. D. Elvidge , K. E. Baugh

The ionosphere introduces chromatic distortions on low frequency radio waves, and thus poses a hurdle for 21-cm cosmology. In this paper we introduce time-varying chromatic ionospheric effects on simulated antenna temperature data of a…

天体物理仪器与方法 · 物理学 2022-07-20 Emma Shen , Dominic Anstey , Eloy de Lera Acedo , Anastasia Fialkov

We present SNID-SAGE (SuperNova IDentification-Spectral Analysis and Guided Exploration), a framework for supernova spectral classification with both a fully interactive graphical interface and a scriptable command-line pipeline for…

天体物理仪器与方法 · 物理学 2026-03-31 Fiorenzo Stoppa , Stephen J. Smartt

We investigate the relationship between 5 GHz interstellar scintillation (ISS) and 15 GHz intrinsic variability of compact, radio-selected AGNs drawn from the Microarcsecond Scintillation-Induced Variability (MASIV) Survey and the Owens…

The next generation of radio surveys is going to be transformative for cosmology and other aspects of our understanding of astrophysics. Realistic simulations of radio observations are essential for the design and planning of radio surveys.…

天体物理仪器与方法 · 物理学 2025-07-30 Tobias Vičánek Martínez , Henrik W. Edler , Marcus Brüggen

This paper presents DISC, a dataset of millimeter-wave channel impulse response measurements for integrated human activity sensing and communication. This is the first dataset collected with a software-defined radio testbed that transmits…

信号处理 · 电气工程与系统科学 2025-02-13 Jacopo Pegoraro , Pablo Saucedo , Jesus Omar Lacruz , Michele Rossi , Joerg Widmer

Prior art has proposed a secondary application for Global Navigation Satellite System (GNSS) infrastructure for remote sensing of ground-based and maritime targets. Here, a passive radar receiver is deployed to detect uncooperative targets…

信号处理 · 电气工程与系统科学 2026-02-10 Riya Sachdeva , Aakanksha Tewari , Sumit J. Darak , Shobha Sundar Ram , Sanat K. Biswas

The Gaussian phase noise of intensity time series is demonstrated to be drastically reduced when the raw voltage data are digitally filtered through an arbitrarily large number $n$ of orthornormal bandpass profiles (eigen-filters) sharing…

天体物理仪器与方法 · 物理学 2020-08-26 Richard Lieu , Kristen Lackeos

The future space-based gravitational-wave detector LISA will deliver rich and information-dense data by listening to the milliHertz Universe. The measured time series will contain the imprint of tens of thousands of detectable Galactic…

广义相对论与量子宇宙学 · 物理学 2022-04-27 Quentin Baghi

We report on the simultaneous Giant Metrewave Radio Telescope (GMRT) and Algonquin Radio Observatory (ARO) observations at 550-750 MHz of the scintillation of PSR B1508+55, resulting in a $\sim$10,000-km baseline. This regime of measurement…

高能天体物理现象 · 物理学 2021-08-18 V. R. Marthi , D. Simard , R. A. Main , U. -L. Pen , M. H. van Kerkwijk , K. Vanderlinde , Y. Gupta , C. Roberts , B. M. Quine

Global Positioning System (GPS) satellites broadcast at frequencies of 1,575.42 MHz (L1) and of 1,227.60 MHz (L2). The dispersive property of the ionosphere can be used to combine independent measurements at the two frequencies to estimate…

天体物理学 · 物理学 2007-05-23 E. Ros , J. M. Marcaide , J. C. Guirado , E. Sardon , I. I. Shapiro

Interferometric Synthetic Aperture Radar (InSAR) is a powerful tool for monitoring surface deformation with high precision. However, low Signal-to-Noise Ratio (SNR) conditions, common in regions with low backscatter, can degrade phase…

信号处理 · 电气工程与系统科学 2025-12-10 Emre Havazli , Shadi Oveisgharan , Michael Denbina , Brian Hawkins

The LOw Frequency ARray (LOFAR) is a next-generation radio telescope which uses thousands of stationary dipoles to observe celestial phenomena. These dipoles are grouped in various 'stations' which are centred on the Netherlands with…

太阳与恒星天体物理 · 物理学 2019-08-13 Richard A. Fallows , Ashish Asgekar , Mario M Bisi , Andrew R. Breen , Sander ter Veen

A digital data acquisition system (DDAS) has been implemented for the Low Energy Neutron Detector Array (LENDA). LENDA is an array of 24 BC-408 plastic-scintillator bars designed to measure low-energy neutrons with kinetic energies in the…

仪器与探测器 · 物理学 2016-02-17 S. Lipschutz , R. G. T. Zegers , J. Hill , S. N. Liddick , S. Noji , C. J. Prokop , M. Scott , M. Solt , C. Sullivan , J. Tompkins