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We present a computationally-efficient algorithm for time-of-arrival (ToA) estimation that is robust under multipath propagation and strong interference. Our algorithm leverages multiple receive antennas to combine adaptive spatial…

信号处理 · 电气工程与系统科学 2025-12-01 António Barros , Christoph Studer

In this letter, we investigate the channel estimation problem for MIMO wireless communication systems with movable antennas (MAs) at both the transmitter (Tx) and receiver (Rx). To achieve high channel estimation accuracy with low pilot…

信号处理 · 电气工程与系统科学 2025-01-07 Ruoyu Zhang , Lei Cheng , Wei Zhang , Xinrong Guan , Yueming Cai , Wen Wu , Rui Zhang

The response of a gravitational-wave (GW) interferometer is spatially modulated and is described by two antenna patterns, one for each polarization state of the waves. The antenna patterns are derived from the shape and size of the…

广义相对论与量子宇宙学 · 物理学 2025-03-21 Andrea Virtuoso , Edoardo Milotti

With the planning of new ambitious gravitational wave (GW) observatories, fully controlled laboratory experiments on dynamic gravitation become more and more important. Such new experiments can provide new insights in potential dynamic…

We propose a highly efficient and accurate numerical scheme named Truncated Atomic Plane Wave (TAPW) method to determine the subband structure of Twisted Bilayer Graphene (TBG) inspired by BM model. Our method utilizes real space…

介观与纳米尺度物理 · 物理学 2023-03-10 Wangqian Miao , Chu Li , Xu Han , Ding Pan , Xi Dai

Predicting the minimum operating voltage ($V_{min}$) of chips stands as a crucial technique in enhancing the speed and reliability of manufacturing testing flow. However, existing $V_{min}$ prediction methods often overlook various sources…

系统与控制 · 电气工程与系统科学 2024-08-13 Yuxuan Yin , Rebecca Chen , Chen He , Peng Li

The precision measurement of the $WW\gamma$ vertex at the future Large Hadron electron Collider (LHeC) at CERN is discussed in this paper. We propose to measure this vertex in the $e^{-} p\to e^{-}W^{\pm}j$ channel as a complement to the…

高能物理 - 唯象学 · 物理学 2018-05-09 Ruibo Li , Xiao-Min Shen , Kai Wang , Tao Xu , Liangliang Zhang , Guohuai Zhu

In the coming years, third-generation detectors such as Einstein Telescope and Cosmic Explorer will enter the network of ground-based gravitational-wave detectors. Their current design predicts a significantly improved sensitivity band with…

广义相对论与量子宇宙学 · 物理学 2024-06-21 Justin Janquart , Tomasz Baka , Anuradha Samajdar , Tim Dietrich , Chris Van Den Broeck

The Murchison Widefield Array (MWA) is a low-frequency aperture array capable of high-time and frequency resolution astronomy applications such as pulsar studies. The large field-of-view of the MWA (hundreds of square degrees) can also be…

天体物理仪器与方法 · 物理学 2022-05-18 N. A. Swainston , N. D. R. Bhat , I. S. Morrison , S. J. McSweeney , S. M. Ord , S. E. Tremblay , M. Sokolowski

Non-fixed flexible antenna architectures, such as fluid antenna system (FAS), movable antenna (MA), and pinching antenna, have garnered significant interest in recent years. In this paper, we propose a new rotatable antenna (RA) model to…

信息论 · 计算机科学 2026-03-31 Beixiong Zheng , Qingjie Wu , Tiantian Ma , Rui Zhang

The direct detection of gravitational waves will provide valuable astrophysical information about many celestial objects. The SCHENBERG has already undergone its first test run. It is expected to have its first scientific run soon. In this…

广义相对论与量子宇宙学 · 物理学 2014-11-18 César H. Lenzi , Nadja S. Magalhães , Rubens M. Marinho , César A. Costa , Helmo A. B. Araújo , Odylio D. Aguiar

Joint gravitational-wave (GW) and $\gamma$-ray burst (GRB) observations are among the best prospects for standard siren cosmology. However, the strong selection effect for the coincident GRB detection, which is possible only for sources…

高能天体物理现象 · 物理学 2024-12-12 Michele Mancarella , Francesco Iacovelli , Stefano Foffa , Niccolò Muttoni , Michele Maggiore

Tilt-to-length (TTL) noise, caused by angular jitter and misalignment, is a major noise source in the inter-satellite interferometer for gravitational wave detection. However, the required level of axis alignment of the optical components…

仪器与探测器 · 物理学 2025-04-11 Peng Qiu , Xiang Lin , Yurong Liang , Hao Yan , Haixing Miao , Zebing Zhou

This paper proposes two compressive sampling based time of arrival (TOA) estimation algorithms using a sub-Nyquist rate receiver. We also describe a novel compressive sampling dictionary design for the compact representation of the received…

信息论 · 计算机科学 2016-04-12 Vijaya Yajnanarayana , Peter Handel

This paper presents a novel wireless sensing system where a movable antenna (MA) continuously moves and receives sensing signals within a three-dimensional (3-D) region to enhance sensing performance compared with conventional…

信息论 · 计算机科学 2026-03-12 Wenyan Ma , Lipeng Zhu , Xiaodan Shao , Rui Zhang

The Matter-Wave laser Interferometer Gravitation Antenna, MIGA, will be a hybrid instrument composed of a network of atom interferometers horizontally aligned and interrogated by the resonant field of an optical cavity. This detector will…

This paper presents analysis for target detection using tightly-coupled antenna (TCA) arrays with high mutual coupling (MC). We show that the wide operational bandwidth of TCAs is advantageous for target detection. We assume a sensing…

信号处理 · 电气工程与系统科学 2025-11-04 Erfan Khordad , Peter J. Smith , Sachitha C. Bandara , Rajitha Senanayake , Robert W. Heath

Since decades ago, multi-antenna has become a key enabling technology in the evolution of wireless communication systems. In contrast to conventional multi-antenna systems that contain antennas at fixed positions, position-flexible antenna…

信息论 · 计算机科学 2024-09-06 Yiqin Wang , Heyin Shen , Chong Han , Meixia Tao

Proper tuning of the orbital characteristics of the three spacecrafts that constitute the usual triangular configuration of the space-borne gravitational-wave detector LISA, could minimize the breathing mode of its arm-lengths. Since the…

广义相对论与量子宇宙学 · 物理学 2008-04-15 Ioannis Deligiannis , Theocharis A. Apostolatos

In this paper, we present an analytical framework for the joint characterization of the 3D direction of arrival (DoA), i.e., azimuth and elevation components, and time of arrival (ToA) in multipath environments. The analytical framework is…

信号处理 · 电气工程与系统科学 2024-03-26 Alejandro Ramírez-Arroyo , Antonio Alex-Amor , Rubén Medina , Pablo Padilla , Juan F. Valenzuela-Valdés