利用协方差函数和多普勒效应现象构建地震振荡参数预测模型:InSight 任务 V2 数据案例研究

IF 1.8 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
EPL Pub Date : 2024-06-03 DOI:10.1209/0295-5075/ad4412
Jonas Skeivalas, Eimuntas Paršeliūnas, Dominykas Šlikas, Romuald Obuchovski and Raimundas Putrimas
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引用次数: 0

摘要

本作品研究了利用协方差函数数学和多普勒效应现象构建识别地震振荡参数预测模型的能力。计算中使用了 InSight 任务 V2 在 2019 年 5 月、6 月和 7 月观测到的火星地震振荡测量数据。为了分析观测数据阵列,采用了多普勒现象和协方差函数的表达式。用最小二乘法评估了地震震荡趋势的强度矢量,并部分消除了台站测量的随机误差。通过改变一般时间尺度上的量化间隔,同时在同一时间尺度上改变地震振荡矢量的幅度,得出了矢量的自协方差和交协方差函数的估计值。为了检测多普勒表达式的主要参数 z 的平均值,我们开发了一个公式,涉及单个矢量的交叉协方差函数导数和相关矢量的代数和。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Constructing predictive models for seismic oscillation parameters using covariance functions and Doppler effect phenomena: A case study of InSight mission V2 data
An ability to construct predictive models for identifying seismic oscillation parameters by using the mathematics of covariance functions and Doppler effect phenomena is examined in this work. In the calculations, the Mars seismic oscillations measurement data from InSight Mission V2, observed in the months May, June and July of 2019, was used. To analyze the observation data arrays the Doppler phenomena and the expressions of covariance functions were employed. The seismic oscillations trend's intensity vectors were assessed by least squares method, and the random errors of measurements at the stations were eliminated partially as well. The estimates of the vector's auto-covariance and cross-covariance functions were derived by altering the quantization interval on the general time scale while varying the magnitude of the seismic oscillation vector on the same time scale. To detect the mean values of z —the main parameter of Doppler expression— we developed a formula by involving the derivatives of cross-covariance functions of a single vector and algebraic sum of the relevant vectors.
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来源期刊
EPL
EPL 物理-物理:综合
CiteScore
3.30
自引率
5.60%
发文量
332
审稿时长
1.9 months
期刊介绍: General physics – physics of elementary particles and fields – nuclear physics – atomic, molecular and optical physics – classical areas of phenomenology – physics of gases, plasmas and electrical discharges – condensed matter – cross-disciplinary physics and related areas of science and technology. Letters submitted to EPL should contain new results, ideas, concepts, experimental methods, theoretical treatments, including those with application potential and be of broad interest and importance to one or several sections of the physics community. The presentation should satisfy the specialist, yet remain understandable to the researchers in other fields through a suitable, clearly written introduction and conclusion (if appropriate). EPL also publishes Comments on Letters previously published in the Journal.
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