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Reconfigurable intelligent surfaces (RISs) are key enablers for integrated sensing and communication (ISAC) systems in the 6G communication era. With the capability of dynamically shaping the channel, RISs can enhance communication…

Under the steady state condition, the spectrum of electrons is investigated by solving the continuity equation under the complex radiation of both the synchrotron and Compton processes. The resulted GRB spectrum is a broken power law in…

高能天体物理现象 · 物理学 2016-06-13 Yunguo Jiang , Shao-Ming Hu , Xu Chen , Kai Li , Di-Fu Guo , Yu-Tong Li , Huai-Zhen Li , Hai-Nan Lin , Zhe Chang

A compact and modular X and gamma-ray imaging spectrometer (XGIS) has been designed as one of the instruments foreseen on-board the THESEUS mission proposed in response to the ESA M5 call. The experiment envisages the use of CsI…

The Infrared Spectrograph (IRS) is one of three science instruments on the Spitzer Space Telescope. The IRS comprises four separate spectrograph modules covering the wavelength range from 5.3 to 38micron with spectral resolutions, R \~90…

天体物理学 · 物理学 2011-05-05 J. R. Houck , the Spitzer/IRS team

Purpose: To investigate the use of a Vision Transformer (ViT) to reconstruct/denoise GABA-edited magnetic resonance spectroscopy (MRS) from a quarter of the typically acquired number of transients using spectrograms. Theory and Methods: A…

The spectrometer SPI, one of the two main instruments of the INTEGRAL spacecraft, offers significant gamma-ray burst detection capabilities. In its 35 deg (full width) field of view SPI is able to localise gamma-ray bursts at a mean rate of…

We present results from the first on-sky demonstration of a prototype astronomical integrated photonic spectrograph (IPS) using the Anglo-Australian Telescope near-infrared imaging spectrometer (IRIS2) at Siding Spring Observatory to…

天体物理仪器与方法 · 物理学 2018-05-23 N. Cvetojevic , J. S. Lawrence , S. C. Ellis , J. Bland-Hawthorn , R. Haynes , A. Horton

A precise synchronization between laser pulse and electron beam arrival time is essential for achieving sub-picosecond stability in modern accelerator facilities. In this work, a Low-Level RF system architecture combined with White Rabbit…

As the demand for wireless connectivity continues to soar, the fifth generation and beyond wireless networks are exploring new ways to efficiently utilize the wireless spectrum and reduce hardware costs. One such approach is the integration…

信号处理 · 电气工程与系统科学 2024-08-20 Ahmet M. Elbir , Kumar Vijay Mishra , Asmaa Abdallah , Abdulkadir Celik , Ahmed M. Eltawil

Aligning functional schematics with 2D and 3D scene acquisitions is crucial for building digital twins, especially for old industrial facilities that lack native digital models. Current manual alignment using images and LiDAR data does not…

计算机视觉与模式识别 · 计算机科学 2026-02-18 Flavien Armangeon , Thibaud Ehret , Enric Meinhardt-Llopis , Rafael Grompone von Gioi , Guillaume Thibault , Marc Petit , Gabriele Facciolo

This paper describes both an experimental methodology based on the Ion Beam Induced Charge (IBIC) technique and the relevant interpretative model, which were adopted to characterize the electronic features of power diodes. IBIC spectra were…

仪器与探测器 · 物理学 2021-02-03 M. Pezzarossa , E. Cepparrone , D. Cosic , M. Jakšić , G. Provatas , M. Vićentijević , E. Vittone

The bioinspired event camera, distinguished by its exceptional temporal resolution, high dynamic range, and low power consumption, has been extensively studied in recent years for motion estimation, robotic perception, and object detection.…

机器人学 · 计算机科学 2025-09-09 Shuolong Chen , Xingxing Li , Liu Yuan

High-contrast imaging instruments are now being equipped with integral field spectrographs (IFS) to facilitate the detection and characterization of faint substellar companions. Algorithms currently envisioned to handle IFS data, such as…

We experimentally demonstrated a spectral imaging scheme with dual compressed sensing. With the dimensions of spectral and spatial information both compressed, the spectral image of a colored object can be obtained with only a single point…

光学 · 物理学 2015-02-17 Xue-Feng Liu , Wen-Kai Yu , Xu-Ri Yao , Bin Dai , Long-Zhen Li , Chao Wang , Guang-Jie Zhai

This work proposes linear time strategies to optimally configure the phase shifts for the reflective elements of an intelligent reflecting surface (IRS). Specifically, we show that the binary phase beamforming can be optimally solved in…

信息论 · 计算机科学 2022-09-14 Yaowen Zhang , Kaiming Shen , Shuyi Ren , Xin Li , Xin Chen , Zhi-Quan Luo

We describe the INTEGRAL Burst Alert System (IBAS): the automatic software for the rapid distribution of the coordinates of the Gamma-Ray Bursts detected by INTEGRAL. IBAS is implemented as a ground based system, working on the near-real…

天体物理学 · 物理学 2009-11-10 S. Mereghetti , D. Gotz , J. Borkowski , R. Walter , H. Pedersen

Integral field spectroscopy (IFS) has been added as a new observation mode to the Robert Stobie Spectrograph (RSS), the workhorse multi-mode instrument on the Southern African Large Telescope. RSS operates as an imaging spectrograph…

天体物理仪器与方法 · 物理学 2026-03-25 Sabyasachi Chattopadhyay , Matthew A. Bershady , Michael P. Smith , Antoine Mahoro , Marsha J. Wolf

In this article we study the sharpness of the phase transition for percolation models defined on top of planar spin systems. The two examples that we treat in detail concern the Glauber dynamics for the Ising model and a Dynamic Bootstrap…

概率论 · 数学 2021-05-28 Caio Alves , Gideon Amir , Rangel Baldasso , Augusto Teixeira

The INTEGRAL/SPI, X-gamma-ray spectrometer (20 keV - 8 MeV) is an instrument for which recovering source intensity variations is not straightforward and can constitute a difficulty for data analysis. In most cases, determining the source…

天体物理仪器与方法 · 物理学 2015-06-16 L. Bouchet , P. -R Amestoy , A. Buttari , F. -H. Rouet , M. Chauvin

In this paper, an intelligent reflecting surface (IRS) is leveraged to enhance the physical layer security of an integrated sensing and communication (ISAC) system in which the IRS is deployed to not only assist the downlink communication…

信息论 · 计算机科学 2022-07-20 Meng Hua , Qingqing Wu , Wen Chen , Octavia A. Dobre , A. Lee Swindlehurst