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相关论文: Template-based searches for gravitational waves: e…

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Template-based searches for gravitational waves are often limited by the computational cost associated with searching large parameter spaces. The study of efficient template banks, in the sense of using the smallest number of templates, is…

广义相对论与量子宇宙学 · 物理学 2010-04-15 C. Messenger , R. Prix , M. A. Papa

When searching for new gravitational-wave or electromagnetic sources, the $n$ signal parameters (masses, sky location, frequencies,...) are unknown. In practice, one hunts for signals at a discrete set of points in parameter space, called a…

广义相对论与量子宇宙学 · 物理学 2022-06-01 Bruce Allen

Matched filtering is a traditional method used to search a data stream for signals. If the source (and hence its $n$ parameters) are unknown, many filters must be employed. These form a grid in the $n$-dimensional parameter space, known as…

天体物理仪器与方法 · 物理学 2022-01-12 Bruce Allen , Andrey A. Shoom

All-sky, broadband, coherent searches for gravitational-wave pulsars are restricted by limited computational resources. Minimizing the number of templates required to cover the search parameter space, of sky position and frequency…

广义相对论与量子宇宙学 · 物理学 2015-01-05 Karl Wette

When searching for new gravitational-wave or electromagnetic sources, the $n$ signal parameters (masses, sky location, frequencies,...) are unknown. In practice, one hunts for signals at a discrete set of points in parameter space, with a…

天体物理仪器与方法 · 物理学 2021-10-27 Bruce Allen

Gravitational wave searches are crucial for studying compact sources like neutron stars and black holes. Many sensitive modeled searches use matched filtering to compare gravitational strain data to a set of waveform models known as…

This paper presents an algorithm for constructing matched-filter template banks in an arbitrary parameter space. The method places templates at random, then removes those which are "too close" together. The properties and optimality of…

广义相对论与量子宇宙学 · 物理学 2010-04-22 Ian Harry , Bruce Allen , B. S. Sathyaprakash

All-sky, broadband, coherent searches for gravitational-wave pulsars are computationally limited. It is therefore important to make efficient use of available computational resources, notably by minimizing the number of templates used to…

广义相对论与量子宇宙学 · 物理学 2013-12-16 Karl Wette , Reinhard Prix

Placing signal templates (grid points) as efficiently as possible to cover a multi-dimensional parameter space is crucial in computing-intensive matched-filtering searches for gravitational waves, but also in similar searches in other…

天体物理仪器与方法 · 物理学 2015-06-23 Henning Fehrmann , Holger J. Pletsch

We report the construction of a three-dimensional template bank for the search for gravitational waves from inspiralling binaries consisting of spinning compact objects. The parameter space consists of two dimensions describing the mass…

广义相对论与量子宇宙学 · 物理学 2014-05-22 P. Ajith , N. Fotopoulos , S. Privitera , A. Neunzert , N. Mazumder , A. J. Weinstein

One strategy for reducing the online computational cost of matched-filter searches for gravitational waves is to introduce a compressed basis for the waveform template bank in a grid-based search. In this paper, we propose and investigate…

天体物理仪器与方法 · 物理学 2016-06-03 Alvin J. K. Chua , Jonathan R. Gair

We describe the application of the lattice covering problem to the placement of templates in a search for continuous gravitational waves from the low-mass X-Ray binary Scorpius X-1. Efficient placement of templates to cover the parameter…

广义相对论与量子宇宙学 · 物理学 2022-06-14 Katelyn J. Wagner , John T. Whelan , Jared K. Wofford , Karl Wette

All-sky surveys for isolated continuous gravitational waves present a significant data-analysis challenge. Semicoherent search methods are commonly used to efficiently perform the computationally-intensive task of searching for these weak…

天体物理仪器与方法 · 物理学 2018-07-04 K. Wette , S. Walsh , R. Prix , M. A. Papa

All-sky searches for gravitational-wave pulsars are generally limited in sensitivity by the finite availability of computing resources. Semicoherent searches are a common method of maximizing search sensitivity given a fixed computing…

广义相对论与量子宇宙学 · 物理学 2016-12-21 Karl Wette

We have studied the problem of all sky search in reference to continuous gravitational wave particularly for such sources whose wave-form are known in advance. We have made an analysis of the number of templates required for matched filter…

广义相对论与量子宇宙学 · 物理学 2007-05-23 D. C. Srivastava , S. K. Sahay

The sensitivity of all-sky searches for gravitational-wave pulsars is primarily limited by the finite availability of computing resources. Semicoherent searches are a widely-used method of maximizing sensitivity to gravitational-wave…

广义相对论与量子宇宙学 · 物理学 2015-10-29 Karl Wette

We introduce a general method for designing tailored lattices of magnetic microtraps for ultracold atoms, on the basis of patterned permanently magnetized films. A fast numerical algorithm is used to automatically generate patterns which…

量子物理 · 物理学 2010-10-19 Roman Schmied , Dietrich Leibfried , Robert J. C. Spreeuw , Shannon Whitlock

The kernel interpolant in a reproducing kernel Hilbert space is optimal in the worst-case sense among all approximations of a function using the same set of function values. In this paper, we compare two search criteria to construct lattice…

数值分析 · 数学 2023-04-05 Frances Y. Kuo , Weiwen Mo , Dirk Nuyens , Ian H. Sloan , Abirami Srikumar

The efficient placement of signal templates in source-parameter space is a crucial requisite for exhaustive matched-filtering searches of modeled gravitational-wave sources. Unfortunately, the current placement algorithms based on regular…

广义相对论与量子宇宙学 · 物理学 2010-01-15 Gian Mario Manca , Michele Vallisneri

We construct integer error-correcting codes and covering codes for the limited-magnitude error channel with more than one error. The codes are lattices that pack or cover the space with the appropriate error ball. Some of the constructions…

信息论 · 计算机科学 2020-06-01 Hengjia Wei , Xin Wang , Moshe Schwartz
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