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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…

Signal Processing · Electrical Eng. & Systems 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…

Signal Processing · Electrical Eng. & Systems 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…

General Relativity and Quantum Cosmology · Physics 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…

Mesoscale and Nanoscale Physics · Physics 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…

Systems and Control · Electrical Eng. & Systems 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…

High Energy Physics - Phenomenology · Physics 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…

General Relativity and Quantum Cosmology · Physics 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…

Instrumentation and Methods for Astrophysics · Physics 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…

Information Theory · Computer Science 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…

General Relativity and Quantum Cosmology · Physics 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…

High Energy Astrophysical Phenomena · Physics 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…

Instrumentation and Detectors · Physics 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…

Information Theory · Computer Science 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…

Information Theory · Computer Science 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…

Signal Processing · Electrical Eng. & Systems 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…

Information Theory · Computer Science 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…

General Relativity and Quantum Cosmology · Physics 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…

Signal Processing · Electrical Eng. & Systems 2024-03-26 Alejandro Ramírez-Arroyo , Antonio Alex-Amor , Rubén Medina , Pablo Padilla , Juan F. Valenzuela-Valdés