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We present a collection of 450 598 eclipsing and ellipsoidal binary systems detected in the OGLE fields toward the Galactic bulge. The collection consists of binary systems of all types: detached, semi-detached, and contact eclipsing…

Ring-core optical fibers have been designed to carry orbital angular momentum modes. We demonstrate the imaging of these modes, individually identifying modes separated temporally by only 30~ps. A single-pixel camera operating in the…

Optics · Physics 2019-08-23 Steven D. Johnson , Zelin Ma , Miles Padgett , Siddharth Ramachandran

The variable source OGLE-UCXB-01 is the first OGLE-discovered ultracompact X-ray binary (UCXB). The 12-year long-term OGLE optical photometry of this source shows a period of P= 12.8 min and a fast period decreasing rate Pdot= -9.2E-11 s…

High Energy Astrophysical Phenomena · Physics 2023-09-08 Shuai Peng , Rong-Feng Shen

In this paper, beam diagnostic and monitoring tools developed by the MAX IV Operations Group are discussed. In particular, new beam position monitoring and accelerator tunes visualization software tools, as well as tools that directly…

Multi-camera SLAM systems offer a plethora of advantages, primarily stemming from their capacity to amalgamate information from a broader field of view, thereby resulting in heightened robustness and improved localization accuracy. In this…

Robotics · Computer Science 2024-04-02 Han Song , Cong Liu , Huafeng Dai

At modern construction sites, utilizing GNSS (Global Navigation Satellite System) to measure the real-time location and orientation (i.e. pose) of construction machines and navigate them is very common. However, GNSS is not always…

Robotics · Computer Science 2021-01-19 Runqiu Bao , Ren Komatsu , Renato Miyagusuku , Masaki Chino , Atsushi Yamashita , Hajime Asama

Robust object tracking requires knowledge and understanding of the object being tracked: its appearance, its motion, and how it changes over time. A tracker must be able to modify its underlying model and adapt to new observations. We…

Computer Vision and Pattern Recognition · Computer Science 2018-02-28 Daniel Gordon , Ali Farhadi , Dieter Fox

We present time-resolved X-ray diffraction measurements using advanced timing schemes that provide high temporal resolution while also maintaining a high flux in the X-ray probe beam. The method employs patterned probe pulse sequences that…

A six-night optical turbulence monitoring campaign has been carried at Cerro Paranal observatory in February and March, 2023 to facilitate the development and characterisation of two novel atmospheric site monitoring instruments - the…

Instrumentation and Methods for Astrophysics · Physics 2024-02-15 Ryan Griffiths , Lisa Bardou , Timothy Butterley , James Osborn , Richard Wilson , Edison Bustos , Andrei Tokovinin , Miska Le Louarn , Angel Otarola

This paper presents a novel beacon light coding protocol, which enables fast and accurate identification of the beacons in an image. The protocol is provably robust to a predefined set of detection and decoding errors, and does not require…

Computer Vision and Pattern Recognition · Computer Science 2020-04-23 Roman Rabinovich , Ibrahim Jubran , Aaron Wetzler , Ron Kimmel

With its ability to look at bright galactic X-ray sources with sub-millisecond time resolution, the Rossi X-ray Timing Explorer (RXTE) discovered that the X-ray emission from accreting compact stars shows quasi-periodic oscillations on the…

Astrophysics · Physics 2009-11-11 Didier Barret

We provide an analytical characterization of the coverage region of simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)-aided two-user downlink communication systems. The cases of orthogonal multiple…

Information Theory · Computer Science 2023-06-02 Farshad Rostami Ghadi , F. Javier Lopez-Martinez , Kai-Kit Wong

The basis for most vision based applications like robotics, self-driving cars and potentially augmented and virtual reality is a robust, continuous estimation of the position and orientation of a camera system w.r.t the observed environment…

Computer Vision and Pattern Recognition · Computer Science 2016-10-25 Steffen Urban , Stefan Hinz

We present on-line, interactive interface to the whole I-band photometry data set obtained in the second phase of the OGLE project (OGLE-II). The raw photometric database is accessed through an additional database using MySQL engine,…

Astrophysics · Physics 2014-10-13 M. K. Szymanski

This article introduces a bistatic joint radar-communication (RadCom) system based on orthogonal frequency-division multiplexing (OFDM). In this context, the adopted OFDM frame structure is described and system model encompassing time,…

Signal Processing · Electrical Eng. & Systems 2023-05-25 Lucas Giroto de Oliveira , David Brunner , Axel Diewald , Charlotte Muth , Laurent Schmalen , Thomas Zwick , Benjamin Nuss

We present the results of our search for optical counterparts to high-mass X-ray transient sources discovered by various X-ray missions. We obtained CCD images of the X-ray fields through BVR and Halpha filters in order to identify…

Astrophysics · Physics 2009-11-11 P. Reig , I. Negueruela , G. Papamastorakis , A. Manousakis , T. Kougentakis

Perception algorithms in autonomous vehicles are vital for the vehicle to understand the semantics of its surroundings, including detection and tracking of objects in the environment. The outputs of these algorithms are in turn used for…

Robotics · Computer Science 2024-11-19 Anand Balakrishnan , Jyotirmoy Deshmukh , Bardh Hoxha , Tomoya Yamaguchi , Georgios Fainekos

We report the discovery of an intriguing triple-mode RR Lyrae star found in the OGLE Galactic bulge collection, OGLE-BLG-RRLYR-24137. In the OGLE catalog the star was identified as RRd star - double-mode pulsator, pulsating simultaneously…

We present preliminary Sloan u',g'-band light curves for a sample of known RR Lyrae variables in the Galactic globular cluster Omega Cen. Results are based on the partial reduction of multi-band time series photometric data collected during…

Advancing maturity in mobile and legged robotics technologies is changing the landscapes where robots are being deployed and found. This innovation calls for a transformation in simultaneous localization and mapping (SLAM) systems to…

Robotics · Computer Science 2021-08-09 Alexey Merzlyakov , Steve Macenski