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We show how machine learning techniques can be applied for the classification of topological phases in leaky photonic lattices using limited measurement data. We propose an approach based solely on bulk intensity measurements, thus exempt…

Digital holography is a 3D imaging technique by emitting a laser beam with a plane wavefront to an object and measuring the intensity of the diffracted waveform, called holograms. The object's 3D shape can be obtained by numerical analysis…

Information Retrieval · Computer Science 2022-07-14 Xiwen Chen , Hao Wang , Abolfazl Razi , Michael Kozicki , Christopher Mann

In this paper, we propose a method to generate Orbital Angular Momentum (OAM) carrying vortex waves inside a metallic circular waveguide (CW). These waves feature ability to carry multiple orthogonal modes at the same frequency, by the…

Systems and Control · Electrical Eng. & Systems 2021-09-30 Md Khadimul Islam , Arjuna Madanayake , Shubhendu Bhardwaj

The advancement of future large-scale wireless networks necessitates the development of cost-effective and scalable security solutions. Conventional cryptographic methods, due to their computational and key management complexity, are unable…

Signal Processing · Electrical Eng. & Systems 2023-08-15 Alireza Nooraiepour , Shaghayegh Vosoughitabar , Chung-Tse Michael Wu , Waheed U. Bajwa , Narayan B. Mandayam

Recently, Machine Learning (ML) is recognized as an effective tool for wireless communications and plays an evolutionary role to enhance Physical Layer (PHY) of 5th Generation (5G) and Beyond 5G (B5G) systems. In this paper, we focus on the…

Signal Processing · Electrical Eng. & Systems 2020-11-09 Yejian Chen , Jafar Mohammadi , Stefan Wesemann , Thorsten Wild

Objective: The transmit encoding model for synthetic aperture imaging is a robust and flexible framework for understanding the effects of acoustic transmission on ultrasound image reconstruction. Our objective is to use machine learning…

Medical Physics · Physics 2024-06-21 Jacob Spainhour , Korben Smart , Stephen Becker , Nick Bottenus

Electromagnetic (EM) waves with helical wavefront carry orbital angular momentum (OAM), which is associated with the azimuthal phase of the complex electric field. OAM is a new degree of freedom in EM waves and is promising for channel…

Classical Physics · Physics 2016-11-10 Menglin L. N. Chen , Li Jun Jiang , Wei E. I. Sha

Most design methods contain a forward framework, asking for primary specifications of a building to generate an output or assess its performance. However, architects urge for specific objectives though uncertain of the proper design…

Computer Vision and Pattern Recognition · Computer Science 2021-06-10 Zohreh Shaghaghian , Wei Yan

The stable operation of autonomous off-grid photovoltaic systems requires solar forecasting algorithms that respect atmospheric thermodynamics. Contemporary deep learning models consistently exhibit critical anomalies, primarily severe…

Machine Learning · Computer Science 2026-04-21 Mohammed Ezzaldin Babiker Abdullah

Utilizing millimeter-wave (mmWave) frequencies for wireless communication in \emph{mobile} systems is challenging since it requires continuous tracking of the beam direction. Recently, beam tracking techniques based on channel sparsity…

Signal Processing · Electrical Eng. & Systems 2020-01-07 Daoud Burghal , Naveed A. Abbasi , Andreas F. Molisch

A precise incident wave angle estimation in aerial communication is a key enabler in sixth-generation wireless communication network. With this goal, a generic 3-dimensional (3D) channel model is analyzed for air-to-air (A2A) networks under…

Signal Processing · Electrical Eng. & Systems 2024-03-29 Eray Guven , Gunes Karabulut Kurt

Most active supermassive black holes (SMBH) in present-day galaxies are underfed and consist of low-luminosity active galactic nuclei (LLAGN). They have multiwavelength broadband spectral energy distributions (SED) dominated by non-thermal…

Astrophysics of Galaxies · Physics 2021-02-12 Ivan Almeida , Roberta Duarte , Rodrigo Nemmen

We present a study of using machine learning to enhance hohlraum design for opacity measurement experiments. For opacity experiments we desire a hohlraum that, when its interior walls are illuminated by theNational Ignition Facility (NIF)…

Instrumentation and Detectors · Physics 2021-03-17 Ryan G. McClarren , I. L. Tregillis , Todd J. Urbatsch , E. S. Dodd

The acquisition of accurate channel state information (CSI) is of utmost importance since it provides performance improvement of wireless communication systems. However, acquiring accurate CSI, which can be done through channel estimation…

Information Theory · Computer Science 2023-06-01 Pedro E. G. Silva , Jules M. Moualeu , Pedro H. Nardelli , Rausley A. A. de Souza

The stochastic formation of defects during Laser Powder Bed Fusion (L-PBF) negatively impacts its adoption for high-precision use cases. Optical monitoring techniques can be used to identify defects based on layer-wise imaging, but these…

Image and Video Processing · Electrical Eng. & Systems 2024-09-23 Francis Ogoke , Sumesh Kalambettu Suresh , Jesse Adamczyk , Dan Bolintineanu , Anthony Garland , Michael Heiden , Amir Barati Farimani

A method to temporally tailor the properties of X-ray radiation carrying Orbital Angular Momentum (OAM) is presented. In simulations, an electron beam is prepared with a temporally modulated micro-bunching structure which, when radiating at…

Accelerator Physics · Physics 2022-05-04 J. Morgan , B. W. J. McNeil

Flexibility is one of the essential requirements in future cellular communications technologies. Providing customized communications solutions for each user and service type cannot be possible without the flexibility in 5G and beyond.…

Signal Processing · Electrical Eng. & Systems 2019-06-13 Ahmet Yazar , Hüseyin Arslan

Orbital angular momentum (OAM), due to its theoretically orthogonal and unbounded helical phase index, has been utilized as an independent physical degree of freedom for ultrahigh-capacity information encryption. However, the imaging…

Optics · Physics 2024-07-29 Feiyang Shen , Weiwen Fan , Yong Zhang , Yuping Chen , Xianfeng Chen

We present a novel technique for generating beams of light carrying orbital angular momentum (OAM) that increases mode purity and decreases singularity splitting by orders of magnitude. This technique also works to control and mitigate beam…

Optics · Physics 2023-02-22 Andrew Sontag , Mehmet A. Noyan , James M. Kikkawa

Accurately determining the origin of radio emissions is essential for numerous scientific experiments, particularly in radio astronomy. Conventional techniques, such as the use of antenna arrays encounter significant challenges, specially…

Applied Physics · Physics 2024-10-01 Harsha Aviansh Tanti , Abhirup Datta , Tiasha Biswas , Anshuman Tripathi