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Feature extraction and dimensionality reduction are important tasks in many fields of science dealing with signal processing and analysis. The relevance of these techniques is increasing as current sensory devices are developed with ever…

Line intensity mapping (LIM) experiments probing the nearby universe can expect a considerable amount of cosmic infrared background (CIB) contiuum emission coming from near and far-infrared galaxies. For the purpose of using the LIM data to…

宇宙学与河外天体物理 · 物理学 2023-07-26 Zilu Zhou , Abhishek S. Maniyar , Anthony R. Pullen

The accurate and low-cost localization of sensors using a wireless sensor network is critically required in a wide range of today's applications. We propose a novel, robust maximum likelihood-type method for distributed cooperative received…

信号处理 · 电气工程与系统科学 2018-12-12 Luca Carlino , Di Jin , Michael Muma , Abdelhak M. Zoubir

We present first results from experimental data showing the capabilities of an Associated Particle Imaging system to measure carbon in soil and other elements. Specifically, we present results from a pre-mixed soil sample containing pure…

In this study, we introduce a multi-modal approach that efficiently integrates multi-scale clinical and dermoscopy features within a single network, thereby substantially reducing model parameters. The proposed method includes three novel…

图像与视频处理 · 电气工程与系统科学 2024-03-31 Peng Tang , Tobias Lasser

We propose a general experimental scheme based on binary trees of partially polarizing beam splitters (PPBSs) for realizing sequential unsharp measurements of photon polarization. The sharpnesses and the bases of the particular photon…

量子物理 · 物理学 2024-10-23 Peter Adam , Lajos Diósi

Sustained mutual coherence between two combs over extended periods is a prerequisite for dual-comb spectroscopy (DCS), particularly in achieving high-resolution molecular spectroscopy and precise spectral measurements. However, achieving…

A new statistical procedure, based on a modified spline basis, is proposed to identify the linear components in the panel data model with fixed effects. Under some mild assumptions, the proposed procedure is shown to consistently estimate…

计量经济学 · 经济学 2019-11-21 Ruiqi Liu , Ben Boukai , Zuofeng Shang

Distributed Acoustic Sensing (DAS) has emerged as a transformative technology for near-surface site characterization. When a vertical source is activated along the fiber, DAS measures only the in-line (radial) component of Rayleigh-wave…

地球物理 · 物理学 2026-05-19 Mrinal Bhaumik , Brady R. Cox

We investigate the impact of point spread function (PSF) fitting errors on cosmic shear measurements using the concepts of complexity and sparsity. Complexity, introduced in a previous paper, characterizes the number of degrees of freedom…

天体物理仪器与方法 · 物理学 2015-05-13 S. Paulin-Henriksson , A. Refregier , A. Amara

We study how joint shear and magnification measurements improve the statistical precision of weak lensing mass calibration experiments, relative to standard shear-only analysis. For our magnification measurements, we consider not only the…

宇宙学与河外天体物理 · 物理学 2010-09-30 Eduardo Rozo , Fabian Schmidt

A pilot project has been proceeded to map 1 deg$^2$ on the Galactic plane for radio recombination lines (RRLs) using the Five hundred meter Aperture Spherical Telescope (FAST). The motivation is to verify the techniques and reliabilities…

星系天体物理 · 物理学 2022-09-21 Bin Liu , Lixin Wang , Junzhi Wang , Bo Peng , Hongjun Wang

The linearization of a power flow (PF) model is an important approach for simplifying and accelerating the calculation of a power system's control, operation, and optimization. Traditional model-based methods derive linearized PF models by…

系统与控制 · 计算机科学 2017-10-31 Yuxiao Liu , Ning Zhang , Yi Wang , Jingwei Yang , Chongqing Kang

A novel method for reducing the impact of non-ideal pseudo-random binary sequence (PRBS) on microwave photonic random demodulators (RDs) in a photonics-assisted compressed sensing (CS) system is proposed. Different from the commonly used…

信号处理 · 电气工程与系统科学 2023-10-30 Shiyang Liu , Yang Chen

Narrow-band intensity-difference squeezing beams have important applications in quantum metrology and gravitational wave detection. The best way to generate narrow-band intensity-difference squeezing is to employ parametrically-amplified…

光学 · 物理学 2017-10-25 Da Zhang , Changbiao Li , Zhaoyang Zhang , Feng Li , Yiqi Zhang , Yanpeng Zhang , Min Xiao

As one of the key components of perturbative QCD theory, it is helpful to find a systematic and reliable way to set the renormalization scale for a high-energy process. The conventional treatment is to take a typical momentum as the…

高能物理 - 唯象学 · 物理学 2015-03-18 Yang Ma , Xing-Gang Wu , Hong-Hao Ma , Hua-Yong Han

In Photoacoustic imaging (PAI), the most prevalent beamforming algorithm is delay-and-sum (DAS) due to its simple implementation. However, it results in a low quality image affected by the high level of sidelobes. Coherence factor (CF) can…

信号处理 · 电气工程与系统科学 2017-10-10 Moein Mozaffarzadeh , Mohammad Mehrmohammadi , Bahador Makkiabadi

In this paper, a cooperative spectrum sensing scheme based on compressive sensing is proposed. In this scheme, secondary users (SUs) are organized in clusters. In each cluster, SUs forward their compressed signals to the cluster head. Then,…

信息论 · 计算机科学 2019-12-12 Fatima Salahdine , Elias Ghribi , Naima Kaabouch

Monitoring $^{90}$Sr contamination in milk following a nuclear accident is critical due to its radiotoxicity and calcium-mimicking behaviour, leading to accumulation in bones and teeth. This study presents a high-efficiency protocol for…

Cooperative spectrum sensing (CSS) is a promising approach to improve the detection of primary users (PUs) using multiple sensors. However, there are several challenges for existing combination methods, i.e., performance degradation and…

信号处理 · 电气工程与系统科学 2024-09-30 Peng Yi , Yang Cao , Xin Kang , Ying-Chang Liang
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