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This paper proposes a novel, highly effective spectrum sensing algorithm for cognitive radio and whitespace applications. The proposed spectral covariance sensing (SCS) algorithm exploits the different statistical correlations of the…

Networking and Internet Architecture · Computer Science 2010-05-07 Jaeweon Kim , Jeffrey G. Andrews

Specutils is an Astropy affiliated package which provides a consistent interface to astronomical spectra (primarily 1D). As Specutils can be adapted to parse spectra in many different formats, Specutils plays a key role at Data Central,…

Instrumentation and Methods for Astrophysics · Physics 2024-02-26 James Tocknell

Cosmic shear measurements rely on our ability to measure and correct the Point Spread Function (PSF) of the observations. This PSF is measured using stars in the field, which give a noisy measure at random points in the field. Using Wiener…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 A. Amara , A. Refregier , S. Paulin-Henriksson

The WALOPControl software is designed to facilitate comprehensive control and operation of the WALOP (Wide Area Linear Optical Polarimeter) polarimeters, ensuring safe and concurrent management of various instrument components and…

We present here the tool "Virtual Spectro", a post-processor for spectroscopics analysis of hydrodynamic codes. We describe purpose and method of this tool, and the first application to analysis of high energy laser driven radiative shocks.

Solar and Stellar Astrophysics · Physics 2012-06-11 Michel Busquet

The security of research software is essential for ensuring the integrity and reproducibility of scientific results. However, research software security is still largely unexplored. Due to its dependence on open source components and…

Software Engineering · Computer Science 2025-08-07 Richard Hegewald , Rebecca Beyer

Obviously, the dynamism of software reliability research has speeded up significantly in the last period, and we can state the fact that its intensity is approaching, and in some cases is ahead of the information systems hardware…

Software Engineering · Computer Science 2020-03-06 Anton Petrov , Elena Popova , Alexander Petrov

We propose a new approach for modelling the functional behaviour of an Earth observation satellite. We leverage this approach in order to develop a safety critical software, a "telecommand verifier", that is in charge of checking onboard…

Software Engineering · Computer Science 2020-02-11 Vincent Mussot , Silvano Dal Zilio , Loic Correnson , Serge Rainjonneau , Yves Bardout , Grégoire Scano

Galaxy spectra are essential to probe the spatial distribution of galaxies in our Universe. To better interpret current and future spectroscopic galaxy redshift surveys, it is important to be able to simulate these data sets. We describe…

Safety-critical system's failure or malfunction can cause loss of human lives or damage to the physical environment; therefore, continuous safety assessment is crucial for such systems. In many domains this includes the use of Safety…

Software Engineering · Computer Science 2023-07-17 Ankit Agrawal , Jane Cleland-Huang

Spectroscopy is an important tool for probing the properties of materials, chemicals and biological samples. We design a practical transmitter-receiver system that exploits entanglement to achieve a provable quantum advantage over all…

Quantum Physics · Physics 2020-11-03 Haowei Shi , Zheshen Zhang , Stefano Pirandola , Quntao Zhuang

The next generation of very long baseline interferometry (VLBI) is stepping into the era of microarcsecond ($\mu$as) astronomy, and pushing astronomy, especially astrometry, to new heights. VLBI with the Square Kilometre Array (SKA),…

Astrophysics of Galaxies · Physics 2024-04-24 Yingjie Li , Ye Xu , Jingjing Li , Shuaibo Bian , Zehao Lin , Chaojie Hao , Dejian Liu

Three calibration campaigns of the spectrometer SPI have been performed before launch in order to determine the instrument characteristics, such as the effective detection area, the spectral resolution and the angular resolution. Absolute…

In this paper a description is given of the SFXC software correlator, developed and maintained at the Joint Institute for VLBI in Europe (JIVE). The software is designed to run on generic Linux-based computing clusters. The correlation…

In this paper, we propose a data-driven framework for collaborative wideband spectrum sensing and scheduling for networked unmanned aerial vehicles (UAVs), which act as the secondary users to opportunistically utilize detected spectrum…

Signal Processing · Electrical Eng. & Systems 2023-08-10 Sravan Reddy Chintareddy , Keenan Roach , Kenny Cheung , Morteza Hashemi

Planetary science space missions need high quality software ed efficient algorithms in order to extract innovative scientific results from flight data. Reliable and efficient software technologies are increasingly vital to improve and…

Instrumentation and Methods for Astrophysics · Physics 2020-04-14 Francesco Lazzarotto , Gabriele Cremonese , Alice Lucchetti , Cristina Re , Emanuele Simioni , Maurizio Pajola , Pamela Cambianica , Giovanni Munaretto

Spatially varying spectral modulation can be implemented using a liquid crystal spatial light modulator (SLM) since it provides an array of liquid crystal cells, each of which can be purposed to act as a programmable spectral filter array.…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Vishwanath Saragadam , Vijay Rengarajan , Ryuichi Tadano , Tuo Zhuang , Hideki Oyaizu , Jun Murayama , Aswin C. Sankaranarayanan

The Ground Support System (GSS) is a critical component of the Space-based multi-band astronomical Variable Objects Monitor (SVOM) mission's ground segment. Its main tasks include organizing and implementing the operations and management of…

Instrumentation and Methods for Astrophysics · Physics 2026-04-28 Yurong Liu , Meng Bai , Mingyue Wei , Ke Feng , Boquan Li , Tai Hu

Despite the lack of important functions supported only by legacy applications, the current VO-compatible tools have enough capabilities to allow powerful analysis of stellar spectra using both public archives and local proprietary data. We…

Instrumentation and Methods for Astrophysics · Physics 2011-12-14 Petr Škoda

In the analysis and control of discrete-time linear time-invariant systems, the spectral radius of the system state matrix plays an essential role. Usually, it is assumed that system matrices are known, from which the spectral radius can be…

Optimization and Control · Mathematics 2022-03-24 Liang Xu , Baiwei Guo , Giancarlo Ferrari-Trecate