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相关论文: Dynamic Aperture Studies for SPEAR 3

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In this work, we present SpaRC, a novel Sparse fusion transformer for 3D perception that integrates multi-view image semantics with Radar and Camera point features. The fusion of radar and camera modalities has emerged as an efficient…

计算机视觉与模式识别 · 计算机科学 2025-09-25 Philipp Wolters , Johannes Gilg , Torben Teepe , Fabian Herzog , Felix Fent , Gerhard Rigoll

We introduce a compact, two-camera laparoscope that combines active stereo depth estimation and speckle-illumination spatial frequency domain imaging (si-SFDI) to map profile-corrected, pixel-level absorption and reduced scattering optical…

光学 · 物理学 2025-01-27 Anthony A. Song , Mason T. Chen , Taylor L. Bobrow , Nicholas J. Durr

Dynamic aperture (DA) is an important nonlinear property of a storage ring lattice, which has a dominant effect on beam injection efficiency and beam lifetime. Generally, minimizing both resonance driving terms (RDTs) and amplitude…

加速器物理 · 物理学 2023-03-28 Bingfeng Wei , Zhenghe Bai , Jiajie Tan , Lin Wang , Guangyao Feng

The DAFNE-II project is considered now as a possible candidate for upgrading the DAFNE electron-positron collider and improving its luminosity. 6D simulation of the DAFNE-II dynamic aperture under various assumptions (weak and strong RF…

加速器物理 · 物理学 2007-05-23 E. Levichev , P. Piminov

The High Intensity heavy ion Accelerator Facility (HIAF) successfully accelerated the 18O6+ beam on October 27, 2025. This paper presents a further simulation study on the high-precision optics, namely sliced optics, of the Booster Ring…

加速器物理 · 物理学 2025-11-11 Ke Wang , Li-Na Sheng , Tao Li , Geng Wang , Wei-Ping Chai , You-Jin Yuan , Jian-Cheng Yang , Guo-Dong Shen , Liang Lu

Automotive synthetic aperture radar (SAR) systems are rapidly emerging as a candidate technological solution to enable a high-resolution environment mapping for autonomous driving. Compared to lidars and cameras, automotive-legacy radars…

Robust and accurate localization in challenging environments is becoming crucial for SLAM. In this paper, we propose a unique sensor configuration for precise and robust odometry by integrating chip radar and a legged robot. Specifically,…

机器人学 · 计算机科学 2024-07-11 Sangwoo Jung , Wooseong Yang , Ayoung Kim

Deep stereo matching has made significant progress in recent years. However, state-of-the-art methods are based on expensive 4D cost volume, which limits their use in real-world applications. To address this issue, 3D correlation maps and…

计算机视觉与模式识别 · 计算机科学 2022-01-03 Xiaoming Zhao , Weihai Chen , Xingming Wu , Peter C. Y. Chen , Zhengguo Li

Radial velocity instruments require high spectral resolution and extreme thermo-mecanical stability, even more difficult to achieve in near-infra red (NIR) where the spectrograph has to be cooled down. For a seeing-limited spectrograph, the…

天体物理仪器与方法 · 物理学 2016-11-23 Uriel Conod , Nicolas Blind , François Wildi , Francesco Pepe

Synthetic aperture radar (SAR) image change detection is a critical yet challenging task in the field of remote sensing image analysis. The task is non-trivial due to the following challenges: Firstly, intrinsic speckle noise of SAR images…

图像与视频处理 · 电气工程与系统科学 2021-10-19 Yunhao Gao , Feng Gao , Junyu Dong , Qian Du , Heng-Chao Li

In this paper, we present a first comparison of different Adaptive Optics (AO) concepts to reach a given scientific specification for 3D spectroscopy on Extremely Large Telescope (ELT). We consider that a range of 30%-50% of Ensquarred…

天体物理学 · 物理学 2009-11-11 B. Neichel , T. Fusco , M. Puech , J-M. Conan , M. Lelouarn , E. Gendron , F. Hammer , G. Rousset , P. Jagourel , P. Bouchet

Laser remote sensing represents a powerful tool that enables the accurate measurement of the speed of moving targets. Crucially, most sensing techniques are 2-Dimensional and only enable direct determination of the speed along the line of…

光学 · 物理学 2019-04-16 Xiao-Bo Hu , Bo-Zhao , Zhi-Han Zhu , Wei Gao , Carmelo Rosales-Guzman

Industrial robots are increasingly used in various applications where the robot accuracy becomes very important, hence calibrations of the robot's kinematic parameters and the measurement system's extrinsic parameters are required. However,…

机器人学 · 计算机科学 2018-03-05 Teguh Santoso Lembono , Fransisco Suarez-Ruiz , Quang-Cuong Pham

We propose the 3rd harmonic lasing in a new FLASH undulator as a way to produce intense, narrow-band, and stable SASE radiation down to 1.3 nm with the present accelerator energy of 1.25 GeV. To provide optimal conditions for harmonic…

加速器物理 · 物理学 2015-06-11 E. A. Schneidmiller , M. V. Yurkov

The large gradients of plasma-wakefield accelerators promise to shorten accelerators and reduce their financial and environmental costs. For such accelerators, a key challenge is the transport of beams with high divergence and energy…

加速器物理 · 物理学 2026-05-21 F. Peña , E. Adli , P. Drobniak , D. Kalvik , K. N. Sjobak , C. A. Lindstrøm

Simultaneous Localization and Mapping (SLAM) using 3D LiDAR has emerged as a cornerstone for autonomous navigation in robotics. While feature-based SLAM systems have achieved impressive results by leveraging edge and planar structures, they…

机器人学 · 计算机科学 2026-02-09 Xinran Li , Shuaikang Zheng , Pengcheng Zheng , Xinyang Wang , Jiacheng Li , Zhitian Li , Xudong Zou

Small, low-cost radar sensors offer a lighting independent sensing capability for indoor mobile robots that is useful for localization and mapping. Synthetic aperture radar (SAR) offers an attractive way to increase the angular resolution…

信号处理 · 电气工程与系统科学 2024-05-02 Yuma E. Ritterbusch , Johannes Fink , Christian Waldschmidt

Using optical spectroscopy, we investigated the electrodynamic properties of Nb:SrTiO3/SrTiO3 superlattices. In these superlattices, a large enhancement of the Seebeck coefficient (S) has been reported with decreasing Nb:SrTiO3 layer…

强关联电子 · 物理学 2010-07-09 Woo Seok Choi , Hiromichi Ohta , Soon Jae Moon , Yun Sang Lee , Tae Won Noh

Surface Nanoscale Axial Photonics (SNAP) technology has demonstrated the record subangstrom fabrication precision of optical microresonators and resonant photonic circuits at the optical fiber surface. However, fabrication errors arising…

We demonstrate the formation of a complex, multi-wavelength, three-dimensional laser beam configuration with integrated metasurface optics. Our experiments support the development of a compact Sr optical-lattice clock, which leverages…