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This paper investigates the recovery of a spectrally sparse signal from its partially revealed noisy entries within the framework of spectral compressive sensing. Nonconvex optimization approaches have recently been proposed based on…

信息论 · 计算机科学 2022-01-25 Xunmeng Wu , Zai Yang , Zongben Xu

Dynamic mode decomposition (DMD) and its variants have emerged as popular methods for the post-processing of fluid dynamics' simulations in order to visualize dominant coherent structures and to reduce the practical degrees of freedom to a…

流体动力学 · 物理学 2023-06-02 Chris Keylock

The treatment of interfering motion contributions remains one of the key challenges in the domain of radar-based vital sign monitoring. Removal of the interference to extract the vital sign contributions is demanding due to overlapping…

计算机视觉与模式识别 · 计算机科学 2024-04-15 Mikolaj Czerkawski , Christos Ilioudis , Carmine Clemente , Craig Michie , Ivan Andonovic , Christos Tachtatzis

The gravitational waves (GW) from core-collapse supernovae (CCSN) have been proposed as a probe to investigate physical properties inside of the supernova. However, how to search and extract the GW signals from core-collapse supernovae…

高能天体物理现象 · 物理学 2024-02-23 Yong Yuan , Xi-Long Fan , Hou-Jun Lü , Yang-Yi Sun , Kai Lin

Frequency modulation (FM) is a form of radio broadcasting which is widely used nowadays and has been for almost a century. We suggest a software-defined-radio (SDR) receiver for FM demodulation that adopts an end-to-end learning based…

机器学习 · 计算机科学 2017-10-10 Dan Elbaz , Michael Zibulevsky

Image Preprocessing is a vital step in the field of image processing for biometric pattern recognition. This paper studies and reviews various classical and modern fingerprint image de-noising models. The various model used for de-noising…

计算机视觉与模式识别 · 计算机科学 2015-12-04 Siddharth Choubey , Deepika Banchhor

Ground penetrating radar (GPR) has become a rapid and non-destructive solution for road subsurface distress (RSD) detection. However, recognizing RSD from GPR images is labor-intensive and heavily relies on the expertise of inspectors. Deep…

计算机视觉与模式识别 · 计算机科学 2026-04-15 Chang Peng , Bao Yang , Meiqi Li , Ge Zhang , Hui Sun , Zhenyu Jiang

Optimum Bayes estimator for General Gaussian Distributed (GGD) data in wavelet is provided. The GGD distribution describes a wide class of signals including natural images. A wavelet thresholding method for image denoising is proposed.…

统计方法学 · 统计学 2012-07-27 Masoud Hashemi , Soosan Beheshti

We demonstrate that the integration of the recently developed dynamic mode decomposition (DMD) with a multi-resolution analysis allows for a decomposition method capable of robustly separating complex systems into a hierarchy of…

动力系统 · 数学 2015-06-02 J. Nathan Kutz , Xing Fu , Steven L. Brunton

In a normal indoor environment, Raman spectrum encounters noise often conceal spectrum peak, leading to difficulty in spectrum interpretation. This paper proposes deep learning (DL) based noise reduction technique for Raman spectroscopy.…

We address the problem of robot localization using ground penetrating radar (GPR) sensors. Current approaches for localization with GPR sensors require a priori maps of the system's environment as well as access to approximate global…

机器人学 · 计算机科学 2021-03-30 Alexander Baikovitz , Paloma Sodhi , Michael Dille , Michael Kaess

Algorithms for mutual interference mitigation and object parameter estimation are a key enabler for automotive applications of frequency-modulated continuous wave (FMCW) radar. In this paper, we introduce a signal separation method to…

信号处理 · 电气工程与系统科学 2024-10-03 Mate Toth , Erik Leitinger , Klaus Witrisal

The authors propose a new modeling approach based on the impedance field method (IFM) to analyze the general geometric variations in device simulations. Compared with the direct modeling of multiple variational devices, the proposed…

介观与纳米尺度物理 · 物理学 2016-04-27 Bo Fu , Seonghoon Jin , Woosung Choi , Keun-Ho Lee , Young-Kwan Park

The semi-airborne transient electromagnetic method (SATEM) is capable of conducting rapid surveys over large-scale and hard-to-reach areas. However, the acquired signals are often contaminated by complex noise, which can compromise the…

机器学习 · 计算机科学 2025-03-31 Shuang Wang , Ming Guo , Xuben Wang , Fei Deng , Lifeng Mao , Bin Wang , Wenlong Gao

In this paper we present a mathematical model of the Empirical Mode Decomposition (EMD). Although EMD is a powerful tool for signal processing, the algorithm itself lacks an appropriate theoretical basis. The interpolation and iteration…

信号处理 · 电气工程与系统科学 2018-02-06 Heming Wang , Richard Mann , Edward R. Vrscay

The forward full-wave modeling of ground-penetrating radar (GPR) facilitates the understanding and interpretation of GPR data. Traditional forward solvers require excessive computational resources, especially when their repetitive…

图像与视频处理 · 电气工程与系统科学 2022-10-05 Qiqi Dai , Yee Hui Lee , Hai-Han Sun , Jiwei Qian , Genevieve Ow , Mohamed Lokman Mohd Yusof , Abdulkadir C. Yucel

In autonomous driving, robust place recognition is critical for global localization and loop closure detection. While inter-modality fusion of camera and LiDAR data in multimodal place recognition (MPR) has shown promise in overcoming the…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Jingyi Xu , Zhangshuo Qi , Zhongmiao Yan , Xuyu Gao , Qianyun Jiao , Songpengcheng Xia , Xieyuanli Chen , Ling Pei

Wearable electrocardiogram (ECG) measurement using dry electrodes has a problem with high-intensity noise distortion. Hence, a robust noise reduction method is required. However, overlapping frequency bands of ECG and noise make noise…

信号处理 · 电气工程与系统科学 2025-01-14 Takamasa Terada , Masahiro Toyoura

Ground-roll attenuation is a challenging seismic processing task in land seismic survey. The ground-roll coherent noise with low frequency and high amplitude seriously contaminate the valuable reflection events, corrupting the quality of…

地球物理 · 物理学 2024-03-28 Yuanyuan Li , Hao Zhang , Jianping Huang , Zhenchun Li

The method described here performs blind deconvolution of the beamforming output in the frequency domain. To provide accurate blind deconvolution, sparsity priors are introduced with a smooth \ell_1/\ell_2 regularization term. As the mean…

数据分析、统计与概率 · 物理学 2016-04-13 Mai Quyen Pham , Benoit Oudompheng , Jérôme I. Mars , Barbara Nicolas