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3D Gaussian Splatting (3DGS) has emerged as a novel paradigm for 3D reconstruction from satellite imagery. However, in multi-temporal satellite images, prevalent shadows exhibit significant inconsistencies due to varying illumination…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Feng Luo , Hongbo Pan , Xiang Yang , Baoyu Jiang , Fengqing Liu , Tao Huang

Surface acoustic wave (SAW) devices are widely used as filter, resonator or delay line in electronic systems in a wide range of applications: mobile communication, TVs, radar, stable resonator for clock generation, etc. The resonance…

Applied Physics · Physics 2019-07-24 Thierry Aubert , O. Elmazria , M. B. Assouar

Atmospheric turbidity is one of the key factors influencing the propagation of artificial light into the environment during cloudless nights. High aerosol loading can reduce the visibility of astronomical objects, and thus information on…

Instrumentation and Methods for Astrophysics · Physics 2023-06-13 Miroslav Kocifaj , František Kundracik , John Barentine

High accuracy 3D surface information is required for many construction robotics tasks such as automated cement polishing or robotic plaster spraying. However, consumer-grade depth cameras currently found in the market are not accurate…

Robotics · Computer Science 2022-09-05 Teng Foong Lam , Hermann Blum , Roland Siegwart , Abel Gawel

Light pollution is a growing environmental issue that affects astronomy, ecosystems, human health. To address this, we introduce the Free Dark Sky Meter (FreeDSM), an affordable IoT-based photometer designed for continuous light pollution…

Instrumentation and Methods for Astrophysics · Physics 2024-09-17 Mario Casado Diez

Technical description of the new project called All Sky Automated Survey and results of the tests of our prototype instrument are presented. The ultimate goal of this project is photometric monitoring of the large area of the sky with fully…

Astrophysics · Physics 2007-05-23 G. Pojmanski

The Near-Infrared Imager and Slitless Spectrograph (NIRISS) is the science module of the Canadian-built Fine Guidance Sensor (FGS) onboard the James Webb Space Telescope (JWST). NIRISS has four observing modes: 1) broadband imaging…

Due to sophisticated deployments of all kinds of wireless networks (e.g., 5G, Wi-Fi, Bluetooth, LEO satellite, etc.), multiband signals distribute in a large bandwidth (e.g., from 70 MHz to 8 GHz). Consequently, for network monitoring and…

Hardware Architecture · Computer Science 2024-05-27 Jinbo Peng , Zhe Chen , Zheng Lin , Haoxuan Yuan , Zihan Fang , Lingzhong Bao , Zihang Song , Ying Li , Jing Ren , Yue Gao

The gravitational wave (GW) interferometers LISA and ET are expected to be functional in the next decade(s), possibly around the same time. They will operate over different frequency ranges, with similar integrated sensitivities to the…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-11 Alisha Marriott-Best , Debika Chowdhury , Anish Ghoshal , Gianmassimo Tasinato

One of the main challenges of modern cosmology is to understand the nature of dark energy. The Integrated Sachs-Wolfe (ISW) effect is sensitive to dark energy and presents an independent signature of dark energy in the absence of modified…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 F. -X. Dupe , A. Rassat , J. -L. Starck , M. J. Fadili

The detection of stochastic gravitational wave background (SGWB) is among the leading scientific goals of the space-borne gravitational wave observatory, which would have significant impact on astrophysics and fundamental physics. In this…

General Relativity and Quantum Cosmology · Physics 2023-01-04 Jun Cheng , En-Kun Li , Yi-Ming Hu , Zheng-Cheng Liang , Jian-dong Zhang , Jianwei Mei

The Steward Observatory LEO Satellite Photometric Survey is a comprehensive observational survey to characterize the apparent brightness of the Starlink and OneWeb low Earth orbit satellites and evaluate the potential impact on astronomy.…

Instrumentation and Methods for Astrophysics · Physics 2023-11-27 Harrison Krantz , Eric C. Pearce , Adam Block

The measurement of the Hubble constant $H_0$ plays a central role in modern cosmology. In this work, we investigate the potential of strongly lensed gravitational-wave (SLGW) signals from massive binary black hole mergers to constrain $H_0$…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-28 Yong Yuan , Minghui Du , Wen-Fan Feng , Benyang Zhu , Qing Diao , Peng Xu , Xilong Fan

The Sun Watcher with Active Pixel System detector and Image Processing (SWAP) telescope was launched on 2 November 2009 onboard the ESA PROBA2 technological mission and has acquired images of the solar corona every one - two minutes for…

Instrumentation and Methods for Astrophysics · Physics 2015-06-11 Jean-Philippe Halain , David Berghmans , Dan Seaton , Bogdan Nicula , Anik De Groof , Marilena Mierla , Alexandra Mazzoli , Jean-Marc Defise , Pierre Rochus

Ground-based Whole Sky Imagers (WSIs) are increasingly being used for various remote sensing applications. While the fundamental requirements of a WSI are to make it climate-proof with an ability to capture high resolution images, cost also…

Atmospheric and Oceanic Physics · Physics 2021-06-08 Mayank Jain , Isabella Gollini , Michela Bertolotto , Gavin McArdle , Soumyabrata Dev

Advances in machine learning and deep neural networks for object detection, coupled with lower cost and power requirements of cameras, led to promising vision-based solutions for sUAS detection. However, solely relying on the visible…

Computer Vision and Pattern Recognition · Computer Science 2020-04-06 Vinicius G. Goecks , Grayson Woods , John Valasek

Wi-Fi sensing offers a promising technique for contactless human respiration monitoring. A key challenge, however, is the blind spot problem caused by random phase offsets that corrupt the complementarity of respiratory signals. To address…

Signal Processing · Electrical Eng. & Systems 2025-07-25 Guangteng Liu , Xiayue Liu , Zhixiang Xu , Yufeng Yuan , Hui Zhao , Yuxuan Liu , Yufei Jiang

Advanced millimeter-wave software-defined array (SDA) platforms, or testbeds at affordable costs and high performance are essential for the wireless community. In this paper, we present a low-cost, portable, and programmable SDA that allows…

Systems and Control · Electrical Eng. & Systems 2024-09-19 Ashwini Pondeycherry Ganesh , Anthony Perre , Alphan Sahin , Ismail Guvenc , Brian A. Floyd

This study evaluates the accuracy of three different types of time-of-flight sensors to measure distance. We envision the possible use of these sensors to localize swarms of flying light specks (FLSs) to illuminate objects and avatars of a…

Multimedia · Computer Science 2023-08-22 Trung Phan , Hamed Alimohammadzadeh , Heather Culbertson , Shahram Ghandeharizadeh

In this paper, we present a scheme to investigate the opacity of the Universe in a cosmological-model-independent way, with the combination of current and future available data in gravitational wave (GW) and electromagnetic (EM) domain. In…

Cosmology and Nongalactic Astrophysics · Physics 2020-06-25 Jing-Zhao Qi , Shuo Cao , Yu Pan , Jin Li