中文
相关论文

相关论文: PAD\'E FILTERING, Principles and Use: an Introduct…

200 篇论文

To evaluate the probability of a gravitational-wave candidate originating from noise, GstLAL collects noise statistics from the data it analyzes. Gravitational-wave signals of astrophysical origin get added to the noise statistics, harming…

广义相对论与量子宇宙学 · 物理学 2023-05-30 Prathamesh Joshi , Leo Tsukada , Chad Hanna

Motivated by the simulation of stable random fields, we consider the issue of discrete approximations of independently scattered stable noise. Two approaches are proposed: grid approximations available when the underlying space is $\bbR^d$…

概率论 · 数学 2009-03-10 Clément Dombry

Spatial point patterns are a commonly recorded form of data in ecology, medicine, astronomy, criminology, epidemiology and many other application fields. One way to understand their second order dependence structure is via their spectral…

应用统计 · 统计学 2023-08-24 Jake P. Grainger , Tuomas A. Rajala , David J. Murrell , Sofia C. Olhede

We describe new methods for denoising and detection of gravitational waves embedded in additive Gaussian noise. The methods are based on Total Variation denoising algorithms. These algorithms, which do not need any a priori information…

广义相对论与量子宇宙学 · 物理学 2016-08-10 Alejandro Torres , Antonio Marquina , José A. Font , José M. Ibáñez

We present a new ${\it{gating}}$ method to remove non-Gaussian noise transients in gravitational wave data. The method does not rely on any a-priori knowledge on the amplitude or duration of the transient events. In light of the character…

广义相对论与量子宇宙学 · 物理学 2022-02-02 Benjamin Steltner , Maria Alessandra Papa , Heinz-Bernd Eggenstein

The measurements of very low level signals at low frequency is a very difficult problem, because environmental noise increases in this frequency domain and it is very difficult to filter it efficiently. In order to counteract these major…

仪器与探测器 · 物理学 2007-05-23 F. Douarche , L. Buisson , S. Ciliberto , A. Petrosyan

Several large-scale gravitational wave (GW) interferometers have achieved long term operation at design sensitivity. Questions arise on how to best combine all available data from detectors of different sensitivities for detection,…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Linqing Wen

The potential of compressed sensing for obtaining sparse time-frequency representations for gravitational wave data analysis is illustrated by comparison with existing methods, as regards i) shedding light on the fine structure of noise…

天体物理仪器与方法 · 物理学 2016-05-16 Paolo Addesso , Maurizio Longo , Stefano Marano , Vincenzo Matta , Maria Principe , Innocenzo M. Pinto

Onboard electrostatic suspension inertial sensors are important applications for gravity satellites and space gravitational wave detection missions, and it is important to suppress noise in the measurement signal. Due to the complex…

地球物理 · 物理学 2023-05-12 Zhilan Yang , Haoyue Zhang , Peng Xu , Ziren Luo

The particle filter is a powerful framework for estimating hidden states in dynamic systems where uncertainty, noise, and nonlinearity dominate. This mini-book offers a clear and structured introduction to the core ideas behind particle…

统计计算 · 统计学 2025-11-04 Sahil Rajesh Dhayalkar

Learning disentangled representations of real-world data is a challenging open problem. Most previous methods have focused on either supervised approaches which use attribute labels or unsupervised approaches that manipulate the…

计算与语言 · 计算机科学 2021-01-26 Vikash Balasubramanian , Ivan Kobyzev , Hareesh Bahuleyan , Ilya Shapiro , Olga Vechtomova

We propose to apply to the detection of Gravitational Waves a new method developed for the spectral analysis of noisy time-series of damped oscillators. From the Pad\'e Approximations of the time-series Z-transform, a Jacobi Matrix…

广义相对论与量子宇宙学 · 物理学 2009-05-14 Daniel Bessis , Luca Perotti

Conventional recursive filtering approaches, designed for quantifying the state of an evolving uncertain dynamical system with intermittent observations, use a sequence of (i) an uncertainty propagation step followed by (ii) a step where…

概率论 · 数学 2015-06-18 Wonjung Lee , Chris Farmer

We introduce a new adaptive decomposition tool, which we refer to as Nonlinear Mode Decomposition (NMD). It decomposes a given signal into a set of physically meaningful oscillations for any waveform, simultaneously removing the noise. NMD…

数值分析 · 数学 2015-10-07 Dmytro Iatsenko , Peter V. E. McClintock , Aneta Stefanovska

Perturbation theory is applied to one-dimensional scattering systems consisting of a general class of inhomogeneous and isotropic slabs having size $L$ described by the relative permittivity $\varepsilon(z) = 1 + \alpha \chi(z)$, where…

光学 · 物理学 2022-10-19 J. A. Rebouças , P. A. Brandão

The article reviews the statistical theory of signal detection in application to analysis of deterministic gravitational-wave signals in the noise of a detector. Statistical foundations for the theory of signal detection and parameter…

广义相对论与量子宇宙学 · 物理学 2023-11-10 Piotr Jaranowski , Andrzej Królak

This paper considers a bearings-only tracking problem using noisy measurements of unknown noise statistics from a passive sensor. It is assumed that the process and measurement noise follows the Gaussian distribution where the measurement…

信号处理 · 电气工程与系统科学 2023-05-16 Shreya Das , Kundan Kumar , Shovan Bhaumik

We propose a generic, phenomenological approach to modifying the dispersion of gravitational waves, independent of corrections to the generation mechanism. This model-independent approach encapsulates all previously proposed…

广义相对论与量子宇宙学 · 物理学 2017-05-31 Rhondale Tso , Maximiliano Isi , Yanbei Chen , Leo Stein

Matched-filtering for the identification of compact object mergers in gravitational-wave antenna data involves the comparison of the data stream to a bank of template gravitational waveforms. Typically the template bank is constructed from…

广义相对论与量子宇宙学 · 物理学 2013-05-30 Kipp Cannon , J. D. Emberson , Chad Hanna , Drew Keppel , Harald Pfeiffer

The detection of gravitational waves has opened unparalleled opportunities for observing the universe, particularly through the study of black hole inspirals. These events serve as unique laboratories to explore the laws of physics under…

广义相对论与量子宇宙学 · 物理学 2024-10-22 Beka Modrekiladze