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The LOw Frequency ARray (LOFAR) is capable of imaging spectroscopy of the Sun in the 10-240 MHz frequency range, with high spectral, temporal, and spatial resolution. However, the complex and rapidly varying nature of solar radio emission -…

Solar and Stellar Astrophysics · Physics 2025-08-15 Soham Dey , Divya Oberoi , Pietro Zucca , Mattia Mancini , Deepan Patra , Devojyoti Kansabanik

The IVOA Data Access Layer (DAL) working group was created in 2002 to define protocols to homogenize data discovery, data description, data retrieval, and data access processes. We describe its history and status today, and look at current…

Instrumentation and Methods for Astrophysics · Physics 2016-12-02 François Bonnarel , Patrick Dowler , Keith Noddle , Douglas Tody

Here we describe the implementation and calibration of a streaked visible spectrometer (SVS) for optical pyrometry and emission/absorption spectroscopy on light gas gun platforms in the UC Davis Shock Compression Laboratory. The diagnostic…

Instrumentation and Detectors · Physics 2020-12-02 Erik J. Davies , Dylan K. Spaulding , Sarah T. Stewart

Source address validation (SAV) is a standard formalized in RFC 2827 aimed at discarding packets with spoofed source IP addresses. The absence of SAV has been known as a root cause of reflection distributed denial-of-service (DDoS) attacks.…

Networking and Internet Architecture · Computer Science 2023-01-25 Maciej Korczyński , Yevheniya Nosyk

Existing LiDAR-inertial-visual odometry and mapping (LIV-SLAM) systems mainly utilize the LiDAR-inertial odometry (LIO) module for structure reconstruction and the visual-inertial odometry (VIO) module for color rendering. However, the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Zikang Yuan , Jie Deng , Ruiye Ming , Fengtian Lang , Xin Yang

Distributed as an open source library since 2013, RTAB-Map started as an appearance-based loop closure detection approach with memory management to deal with large-scale and long-term online operation. It then grew to implement Simultaneous…

Robotics · Computer Science 2024-03-12 Mathieu Labbé , François Michaud

The SPectrogram Analysis and Cataloguing Environment (SPACE) tool is an interactive python tool designed to label radio emission features of interest in a time-frequency map (called 'dynamic spectrum'). The program uses Matplotlib's Polygon…

Instrumentation and Methods for Astrophysics · Physics 2022-07-27 C. K. Louis , C. M. Jackman , S. W. Mangham , K. D. Smith , E. P. O'Dwyer , A. Empey , B. Cecconi , P. Zarka , S. Maloney

A closed-form analytical expression is derived for the limiting empirical squared singular value density of a spreading (signature) matrix corresponding to sparse low-density code-domain (LDCD) non-orthogonal multiple-access (NOMA) with…

Information Theory · Computer Science 2017-05-10 Ori Shental , Benjamin M. Zaidel , Shlomo Shamai

An adaptive standardized protocol is essential for addressing inter-slice resource contention and conflict in network slicing. Traditional protocol standardization is a cumbersome task that yields hardcoded predefined protocols, resulting…

Networking and Internet Architecture · Computer Science 2024-07-02 Farhad Rezazadeh , Hatim Chergui , Shuaib Siddiqui , Josep Mangues , Houbing Song , Walid Saad , Mehdi Bennis

Diffusion models have significantly advanced the state of the art in image, audio, and video generation tasks. However, their applications in practical scenarios are hindered by slow inference speed. Drawing inspiration from the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Chen Xu , Tianhui Song , Weixin Feng , Xubin Li , Tiezheng Ge , Bo Zheng , Limin Wang

This paper proposes a novel space-time rate-splitting multiple access (ST-RSMA) framework for multibeam low Earth orbit (LEO) satellite communications (SATCOM) systems, where space-time coding is integrated into the common stream…

Information Theory · Computer Science 2025-10-21 Jaehyup Seong , Byungju Lee , Aryan Kaushik , Wonjae Shin

Are existing object detection methods adequate for detecting text and visual elements in scientific plots which are arguably different than the objects found in natural images? To answer this question, we train and compare the accuracy of…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Pritha Ganguly , Nitesh Methani , Mitesh M. Khapra , Pratyush Kumar

The Galactic O-Star Spectroscopic Survey (GOSSS) is an ambitious project that is observing all known Galactic O stars with B < 13 in the blue-violet part of the spectrum with R-2500. It is based on version 2 of the most complete catalog to…

Instrumentation and Methods for Astrophysics · Physics 2011-01-19 Alfredo Sota , Jesús Maíz Apellániz

VoIP is becoming a low-priced and efficient replacement for PSTN in communication industries. With a widely growing adoption rate, SIP is an application layer signaling protocol, standardized by the IETF, for creating, modifying, and…

Networking and Internet Architecture · Computer Science 2017-09-06 Ahmadreza Montazerolghaem , Mohammad Hossein Yaghmaee , Alberto Leon-Garcia

Ultraviolet absorption line spectroscopy is a sensitive diagnostic for the properties of interstellar and circumgalactic gas. Down-the-barrel observations, where the absorption is measured against the galaxy itself, are commonly used to…

We propose a novel, vision-only object-level SLAM framework for automotive applications representing 3D shapes by implicit signed distance functions. Our key innovation consists of augmenting the standard neural representation by a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Li Cui , Yang Ding , Richard Hartley , Zirui Xie , Laurent Kneip , Zhenghua Yu

In this paper, we investigate the problem of UAV-aided user localization in wireless networks. Unlike the existing works, we do not assume perfect knowledge of the UAV location, hence we not only need to localize the users but also to track…

Information Theory · Computer Science 2023-05-25 Omid Esrafilian , Rajeev Gangula , David Gesbert

The Topological Signal Processing (TSP) framework has been recently developed to analyze signals defined over simplicial complexes, i.e. topological spaces represented by finite sets of elements that are closed under inclusion of subsets…

Signal Processing · Electrical Eng. & Systems 2021-12-14 Stefania Sardellitti , Sergio Barbarossa , Lucia Testa

M dwarfs are important targets in the search for Earth-like exoplanets due to their small masses and low luminosities. Several ongoing and upcoming space missions are targeting M dwarfs for this reason, and the ESA PLATO mission is one of…

LoRaWAN is a compelling low-cost solution for large-scale indoor Internet of Things (IoT) data backhaul, owing to its strong penetration capability and low power consumption. However, its default pure ALOHA access mechanism leads to severe…

Signal Processing · Electrical Eng. & Systems 2026-05-25 Junxiao Liu , Xinyu Fan , Luping Xiang , Kun Yang