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The Stretched-FrOnt-Leg (SFOL) pulse is an advanced distance measuring equipment (DME) pulse that offers superior ranging accuracy compared to conventional Gaussian pulses. Successful SFOL pulse transmission has been recently demonstrated…

Signal Processing · Electrical Eng. & Systems 2025-06-13 Jongmin Park , Seowoo Park , Sunghwa Lee , Jiwon Seo , Euiho Kim

In ultra-dense small cell networks, spatial multiplexing gain is a challenge because of the different propagation conditions. The channels associated with different transmitreceive pairs can be highly correlated due to the i) high…

Information Theory · Computer Science 2016-11-08 Amir H. Jafari , Vijay Venkateswaran , David Lopez-Perez , Jie Zhang

Light propagation through multimode fibers suffers from spatial distortions that lead to a scrambled intensity profile. In previous work, the correction of such distortions using various wavefront control methods has been demonstrated in…

Federated learning (FL) is one of the popular distributed machine learning (ML) solutions but incurs significant communication and computation costs at edge devices. Federated split learning (FSL) can train sub-models in parallel and reduce…

Machine Learning · Computer Science 2025-07-22 Yujia Mu , Cong Shen

In this paper, we propose Plane Wave Elastography (PWE), a novel ultrasound shear wave elastography (SWE) approach. Currently, commercial methods for SWE rely on directional filtering based on the prior knowledge of the wave propagation…

Medical Physics · Physics 2021-08-11 Reza Khodayi-mehr , Matthew W. Urban , Michael M. Zavlanos , Wilkins Aquino

Temporal Forgery Localization (TFL) aims to precisely identify manipulated segments in video and audio, offering strong interpretability for security and forensics. While recent State Space Models (SSMs) show promise in precise temporal…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Xiaodong Zhu , Suting Wang , Yuanming Zheng , Junqi Yang , Yangxu Liao , Yuhong Yang , Weiping Tu , Zhongyuan Wang

For distances less 10 nm, a total energy transfer occurs from a quantum emitter to a nearby metallic surface, producing evanescent surface waves that are plasmonic in nature. When investigating a metallic nanohole supported on an optically…

Optics · Physics 2019-07-16 Amir Djalalian-Assl

Fluorescent molecules are versatile nanoscale emitters that enable detailed observations of biophysical processes with nanoscale resolution. Because they are well-approximated as electric dipoles, imaging systems can be designed to…

Optics · Physics 2024-03-26 Tingting Wu , Matthew D. Lew

PULSE is a new concept to augment the currently operating 5.1-m Hale PALM-3000 exoplanet adaptive optics system with an ultraviolet Rayleigh laser and associated wavefront sensor. By using an ultraviolet laser to measure the high spatial…

Instrumentation and Methods for Astrophysics · Physics 2013-09-18 Christoph Baranec , Richard Dekany , Marcos van Dam , Rick Burruss

We consider the problem of accurate channel estimation for OTFS based systems with few transmit/receive antennas, where additional sparsity due to large number of antennas is not a possibility. For such systems the sparsity of the effective…

Information Theory · Computer Science 2024-10-28 Imran Ali Khan , Saif Khan Mohammed

The recently proposed orthogonal delay-Doppler division multiplexing (ODDM) modulation has been demonstrated to enjoy excellent reliability over doubly-dispersive channels. However, most of the prior analysis tends to ignore the interactive…

Signal Processing · Electrical Eng. & Systems 2025-08-05 Xuehan Wang , Jinhong Yuan , Jintao Wang , Zhi Sun

Digital Video Broadcasting - Satellite - Second Generation (DVB-S2) is the current European standard for satellite broadcast and broadband communications. It relies on high order modulations up to 32-amplitude/phase-shift-keying (APSK) in…

Information Theory · Computer Science 2014-05-14 Thibault Deleu , Mathieu Dervin , Kenta Kasai , François Horlin

Extensive work has demonstrated the excellent performance of orthogonal time frequency space (OTFS) modulation in high-mobility scenarios. Time-variant wideband channel estimation serves as one of the key compositions of OTFS receivers…

Information Theory · Computer Science 2023-02-14 Xuehan Wang , Xu Shi , Jintao Wang , Jian Song

We present a theoretical model and its efficient numerical implementation for the simulation of wavelength-swept waveform propagation in fiber systems such as Fourier domain mode-locked (FDML) lasers, fully accounting for the polarization…

Optics · Physics 2018-10-12 Christian Jirauschek , Robert Huber

This paper presents a pulse compansion, i.e. compression or expansion, technique based on co-propagating space-time modulation. An engineered asymmetric space-time modulated medium, co-propagating with a pulse compands the pulse…

Optics · Physics 2018-10-10 Nima Chamanara , Christophe Caloz

Digital fringe projection (DFP) enables micrometer-level 3D reconstruction, yet extending it to large-scale mapping remains challenging because six-degree-of-freedom pose estimation often cannot match the reconstruction's precision.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Sehoon Tak , Keunhee Cho , Sangpil Kim , Jae-Sang Hyun

We have designed and constructed a ``dispersed Fourier Transform Spectrometer'' (dFTS), consisting of a conventional FTS followed by a grating spectrometer. By combining these two devices, we negate a substantial fraction of the sensitivity…

The deployment of federated learning in a wireless network, called federated edge learning (FEEL), exploits low-latency access to distributed mobile data to efficiently train an AI model while preserving data privacy. In this work, we study…

Information Theory · Computer Science 2021-03-11 Zhenyi Lin , Xiaoyang Li , Vincent K. N. Lau , Yi Gong , Kaibin Huang

In this paper, we analyze the recently discovered delay-Doppler plane orthogonal pulse (DDOP), which is essential for delay-Doppler plane multi-carrier modulation waveform. In particular, we introduce a local orthogonality property of…

Information Theory · Computer Science 2023-01-18 Hai Lin , Jinhong Yuan

One-shot medical image segmentation faces fundamental challenges in prototype representation due to limited annotated data and significant anatomical variability across patients. Traditional prototype-based methods rely on deterministic…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Ziyuan Gao , Philippe Morel
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