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相关论文: Fiber Assignment in Next-generation Wide-field Spe…

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The Prime Focus Spectrograph (PFS) is a fiber fed multi-object spectrometer for the Subaru Telescope that will conduct a variety of targeted surveys for studies of dark energy, galaxy evolution, and galactic archaeology. The key to the…

Sensor placement optimization methods have been studied extensively. They can be applied to a wide range of applications, including surveillance of known environments, optimal locations for 5G towers, and placement of missile defense…

机器学习 · 计算机科学 2024-05-22 Lukas Taus , Yen-Hsi Richard Tsai

We propose a novel iterative method for optimally placing and orienting multiple cameras in a 3D scene. Sample applications include improving the accuracy of 3D reconstruction, maximizing the covered area for surveillance, or improving the…

计算机视觉与模式识别 · 计算机科学 2021-03-23 Maria L. Hänel , Carola-B. Schönlieb

In this paper, we study the optimal resource allocation algorithm design for large intelligent reflecting surface (IRS)-assisted simultaneous wireless information and power transfer (SWIPT) systems. To facilitate efficient system design for…

信息论 · 计算机科学 2021-04-09 Dongfang Xu , Vahid Jamali , Xianghao Yu , Derrick Wing Kwan Ng , Robert Schober

Arrays of bioinspired artificial hair-cell airflow velocity sensors can enable flight-by-feel of small, unmanned aircraft. Natural fliers - bats, insects, and birds - have hundred or thousands of velocity sensors distributed across their…

流体动力学 · 物理学 2023-12-25 Alex C. Hollenbeck , Ramana Grandhi , John H. Hansen , Alexander M. Pankonien

Wireless mesh networks have seen a real progress due of their implementation at a low cost. They present one of Next Generation Networks technologies and can serve as home, companies and universities networks. In this paper, we propose and…

网络与互联网体系结构 · 计算机科学 2013-08-28 Tarik Mountassir Bouchaib Nassereddine , Abdelkrim Haqiq , Samir Bennani

With the development of modern radio interferometers, wide-field continuum surveys have been planned and undertaken, for which accurate wide-field imaging methods are essential. Based on the widely-used W-stacking method, we propose a new…

天体物理仪器与方法 · 物理学 2023-05-01 Haoyang Ye , Steve F. Gull , Sze M. Tan , Bojan Nikolic

Ensuring adequate wireless coverage in upcoming communication technologies such as 6G is expected to be challenging. This is because user demands of higher datarate require an increase in carrier frequencies, which in turn reduce the…

信号处理 · 电气工程与系统科学 2024-09-27 Sai Sanjay Narayanan , Uday K Khankhoje , Radha Krishna Ganti

Optical fibres are essential for many types of highly-multiplexed and precision spectroscopy. The success of the new generation of multifibre instruments under construction to investigate fundamental problems in cosmology, such as the…

天体物理仪器与方法 · 物理学 2015-06-05 Jeremy Allington-Smith , Graham Murray , Ulrike Lemke

We examine the impact of fiber assignment on the measurement of galaxy clustering and its cross correlation with weak lensing fields. Unlike the past spectroscopic galaxy surveys such as Baryon Oscillation Spectroscopic Survey (BOSS),…

宇宙学与河外天体物理 · 物理学 2022-03-16 Ryu Makiya , Tomomi Sunayama

This paper introduces the design and implementation of WiField, a WiFi sensing system deployed on COTS devices that can simultaneously identify multiple wavelength-level targets placed flexibly. Unlike traditional RF sensing schemes that…

信号处理 · 电气工程与系统科学 2024-12-10 Fei Shang , Haocheng Jiang , Panlong Yang , Dawei Yan , Haohua Du , Xiang-Yang Li

The feedforward selective fixed-filter method selects the most suitable pre-trained control filter based on the spectral features of the detected reference signal, effectively avoiding slow convergence in conventional adaptive algorithms.…

信号处理 · 电气工程与系统科学 2025-08-04 Hong-Cheng Liang , Man-Wai Mak , Kong Aik Lee

Given the limitations of backpropagation, perturbation-based gradient computation methods have recently gained focus for learning with only forward passes, also referred to as queries. Conventional forward learning consumes enormous queries…

机器学习 · 计算机科学 2025-03-11 Tao Ren , Zishi Zhang , Jinyang Jiang , Guanghao Li , Zeliang Zhang , Mingqian Feng , Yijie Peng

Shift-and-add is an approach employed to mitigate the phenomenon of resolution degradation in images acquired through a turbulent medium. Using this technique, a large number of consecutive short exposures is registered below the coherence…

天体物理仪器与方法 · 物理学 2015-05-15 A. Popowicz , A. R. Kurek , A. Pollo , B. Smolka

This paper investigates optimal caching placement for wireless femto-caching network. The average bit error rate (BER) is formulated as a function of caching placement under wireless fading. To minimize the average BER, we propose a greedy…

信息论 · 计算机科学 2016-06-02 Jaeyoung Song , Hojin Song , Wan Choi

Diffractive lenses have recently been applied to the domain of multispectral imaging in the X-ray and UV regimes where they can achieve very high resolution as compared to reflective and refractive optics. Conventionally, spectral…

图像与视频处理 · 电气工程与系统科学 2020-05-26 Evan Widloski , Ulas Kamaci , Farzad Kamalabadi

We propose a dynamic filtering strategy with large sampling field for ConvNets (LS-DFN), where the position-specific kernels learn from not only the identical position but also multiple sampled neighbor regions. During sampling, residual…

计算机视觉与模式识别 · 计算机科学 2019-09-10 Jialin Wu , Dai Li , Yu Yang , Chandrajit Bajaj , Xiangyang Ji

Envisioned for fifth generation (5G) systems, millimeter-wave (mmWave) communications are under very active research worldwide. Although pencil beams with accurate beamtracking may boost the throughput of mmWave systems, this poses great…

网络与互联网体系结构 · 计算机科学 2019-08-29 Rafail Ismayilov , Megumi Kaneko , Takefumi Hiraguri , Kentaro Nishimori

We present an evolutionary programming algorithm for solving the dynamic routing and wavelength assignment (DRWA) problem in optical wavelength-division multiplexing (WDM) networks under wavelength continuity constraint. We assume an ideal…

网络与互联网体系结构 · 计算机科学 2010-07-15 Urmila Bhanja , Sudipta Mahapatra , Rajarshi Roy

This paper addresses distributed registration of a sensor network for multitarget tracking. Each sensor gets measurements of the target position in a local coordinate frame, having no knowledge about the relative positions (referred to as…

系统与控制 · 计算机科学 2019-02-08 Lin Gao , Giorgio Battistelli , Luigi Chisci , Ping Wei