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We present a methodology for automated real-time analysis of a radio image data stream with the goal to find transient sources. Contrary to previous works, the transients we are interested in occur on a time-scale where dispersion starts to…

Instrumentation and Methods for Astrophysics · Physics 2021-08-09 David Ruhe , Mark Kuiack , Antonia Rowlinson , Ralph Wijers , Patrick Forré

Detecting Resident Space Objects (RSOs) and preventing collisions with other satellites is crucial. Recently, deep convolutional neural networks (DCNNs) have shown superior performance in object detection when large-scale datasets are…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Zhe Chen , Yang Yang , Anne Bettens , Youngho Eun , Xiaofeng Wu

Vision Transformers are used via a customized TransUNet architecture, which is a hybrid model combining Transformers into a U-Net backbone, to achieve precise, automated, and fast segmentation of radio astronomy data affected by calibration…

Instrumentation and Methods for Astrophysics · Physics 2025-08-14 Nicoletta Sanvitale , Claudio Gheller , Franco Vazza , Annalisa Bonafede , Virginia Cuciti , Emanuele De Rubeis , Federica Govoni , Matteo Murgia , Valentina Vacca

We propose a simple yet effective model for Single Image Super-Resolution (SISR), by combining the merits of Residual Learning and Convolutional Sparse Coding (RL-CSC). Our model is inspired by the Learned Iterative Shrinkage-Threshold…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Menglei Zhang , Zhou Liu , Lei Yu

Reconfigurable Intelligent Surfaces (RIS) constitute a promising technology that could fulfill the extreme performance and capacity needs of the upcoming 6G wireless networks, by offering software-defined control over wireless propagation…

Single Image Super Resolution (SISR) is the process of mapping a low-resolution image to a high resolution image. This inherently has applications in remote sensing as a way to increase the spatial resolution in satellite imagery. This…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Matthew Ciolino , David Noever , Josh Kalin

The OMNeT++ simulator is well-suited for the simulation of randomized user behavior in communication networks. However, there are scenarios, where such a random model is unsuited to evaluate a communication system, and this paper attempts…

Networking and Internet Architecture · Computer Science 2021-09-28 Musab Ahmed Eltayeb Ahmed , Konrad Fuger , Sebastian Lindner , Fatema Khan , Andreas Timm-Giel

Since the discovery of RRATs, interest in single pulse radio searches has increased dramatically. Due to the large data volumes generated by these searches, especially in planned surveys for future radio telescopes, such searches have to be…

Instrumentation and Methods for Astrophysics · Physics 2014-02-03 Alessio Magro

We report the development of a new ray-tracing simulation tool having the potential of the full characterization of a radio link through the accurate study of the propagation path of the signal from the transmitting to the receiving…

Computational Physics · Physics 2007-05-23 C. Tannous , J. Nigrin

Fifth generation (5G) network and beyond envision massive Internet of Things (IoT) rollout to support disruptive applications such as extended reality (XR), augmented/virtual reality (AR/VR), industrial automation, autonomous driving, and…

Machine Learning · Computer Science 2022-09-08 Anu Jagannath , Jithin Jagannath , Prem Sagar Pattanshetty Vasanth Kumar

The dominant trackers generate a fixed-size rectangular region based on the previous prediction or initial bounding box as the model input, i.e., search region. While this manner obtains promising tracking efficiency, a fixed-size search…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Jiawen Zhu , Xin Chen , Pengyu Zhang , Xinying Wang , Dong Wang , Wenda Zhao , Huchuan Lu

Raman spectroscopy provides a vibrational profile of the molecules and thus can be used to uniquely identify different kind of materials. This sort of fingerprinting molecules has thus led to widespread application of Raman spectrum in…

Reconfigurable Intelligent Surfaces (RISs) promise improved, secure and more efficient wireless communications. We propose and demonstrate how to exploit the diversity offered by RISs to generate and select easily differentiable radio maps…

Signal Processing · Electrical Eng. & Systems 2020-10-08 Cam Ly Nguyen , Orestis Georgiou , Gabriele Gradoni

This paper presents reconfigurable intelligent surface (RIS)-aided deep learning (DL)-based spectrum sensing for next-generation cognitive radios. To that end, the secondary user (SU) monitors the primary transmitter (PT) signal, where the…

Signal Processing · Electrical Eng. & Systems 2025-05-05 Sefa Kayraklik , Ibrahim Yildirim , Ertugrul Basar , Ibrahim Hokelek , Ali Gorcin

The increasing complexity of recent Wi-Fi amendments is making the use of traditional algorithms and heuristics unfeasible to address the Rate Adaptation (RA) problem. This is due to the large combination of configuration parameters along…

Networking and Internet Architecture · Computer Science 2023-10-10 Ruben Queiros , Luis Ferreira , Helder Fontes , Rui Campos

The problem of joint design of transmit waveforms and receive filters is desirable in many application scenarios of multiple-input multiple-output (MIMO) radar systems. In this paper, the joint design problem is investigated under the…

Signal Processing · Electrical Eng. & Systems 2021-02-11 Huanyu Zhang , Ziping Zhao

In our earlier publication we introduced the Spectrally Integrated Voigt Function (SIVF) as an alternative to the traditional Voigt function for the HITRAN-based applications [Quine & Abrarov, JQSRT 2013]. It was shown that application of…

General Physics · Physics 2021-05-21 Sanjar M. Abrarov , Rehan Siddiqui , Rajinder K. Jagpal , Brendan M. Quine

As an emerging approach, deep learning plays an increasingly influential role in channel modeling. Traditional ray tracing (RT) methods of channel modeling tend to be inefficient and expensive. In this paper, we present a super-resolution…

Signal Processing · Electrical Eng. & Systems 2023-01-24 Haoyang Zhang , Danping He , Xiping Wang , Wenbin Wang , Yunhao Cheng , Ke Guan

The advent of 6G wireless communication marks a transformative era in technological connectivity, bringing forth challenges and opportunities alike. This paper unveils an innovative, open-source simulator, meticulously crafted for cell-free…

Networking and Internet Architecture · Computer Science 2024-01-18 William Tärneberg , Aleksei Fedorov , Gilles Callebaut , Liesbet Van der Perre , Emma Fitzgerald

We present a Siamese-like Dual-branch network based on solely Transformers for tracking. Given a template and a search image, we divide them into non-overlapping patches and extract a feature vector for each patch based on its matching…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Fei Xie , Chunyu Wang , Guangting Wang , Wankou Yang , Wenjun Zeng
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