Results 1 to 10 of about 23,664,745 (227)

Anomaly Detection in Satellite Telemetry Data Using a Sparse Feature-Based Method [PDF]

open access: yesSensors, 2022
Anomaly detection based on telemetry data is a major issue in satellite health monitoring which can identify unusual or unexpected events, helping to avoid serious accidents and ensure the safety and reliability of operations.
Jiahui He, Zhijun Cheng, Bo Guo
doaj   +2 more sources

Intermittent Loss of Telemetry Data [PDF]

open access: yesJACC: Case Reports, 2021
We present the case of a 63-year-old female patient who presented to the pacemaker clinic for a scheduled interrogation of her leadless pacemaker. The device interrogation was suggestive of intermittent under-sensing with failure to pace.
Dimitrios Katsaras, MD   +5 more
doaj   +2 more sources

Identification of parameters of heat supply facilities using telemetry data [PDF]

open access: yesE3S Web of Conferences, 2023
The purpose of the study is to test the hypothesis about the possibility of using telemetry data to identify heat supply objects. The article considers 4 models approximating telemetry data. Determination coefficients and standard deviations were used to
Kitaytseva Elena
doaj   +1 more source

Contrastive Learning with Prototype-Based Negative Mixing for Satellite Telemetry Anomaly Detection

open access: yesSensors, 2023
Telemetry data are the most important basis for ground operators to assess the status of satellites in orbit, and telemetry data-based anomaly detection has become a key tool to improve the reliability and safety of spacecrafts.
Guohang Guo   +4 more
doaj   +1 more source

An Optimization Method for Satellite Data Structure Design Based on Improved Ant Colony Algorithm

open access: yesIEEE Access, 2023
The telemetry data structure is the embodiment of satellite telemetry format, the rationality and correctness of which determine the satellite telemetry capacity as well as transmission capability.
Jinchen Zhao, Mian Ye
doaj   +1 more source

A two-stage rice-based lossless compression method for telemetry data [PDF]

open access: yesJournal of Engineering Science and Military Technologies, 2018
The article presents results of a study of a proposed lossless compression method for telemetry data. A two-stage scheme of lossless compression, consisting of decorrelation and entropy coding, is presented.
Mohamed Elshafey
doaj   +1 more source

Fault Detection Method of Luojia1-01 Satellite Attitude Control System Based on Supervised Local Linear Embedding

open access: yesIEEE Access, 2019
This paper is aimed at the telemetry data of Luojia1-01 satellite attitude control system, and carries out the research on high-dimensional data feature extraction and fault detection based on supervised local linear embedding (SLLE). Because the general
Zhi Qu   +7 more
doaj   +1 more source

Research on Trend Analysis and Early Warning Technology of Smart Substation Telemetry Data Based on ARIMA-BP Combined Model

open access: yesJournal of Harbin University of Science and Technology, 2023
In order to perform fault early warning on the secondary protection devices of smart substations based on monitoring data, a trend analysis and early warning method of smart substation telemetry data based on the ARIMA-BP combined model is proposed ...
ZHOU Ke   +3 more
doaj   +1 more source

A method of consistently fusion-interpreting the telemetry data based on the evidence theory

open access: yesDianzi Jishu Yingyong, 2019
Aiming at the complex problem of telemetry time series data interpretation, a new method was proposed which can consistently analyze and judge the telemetry data in launching tasks of vehicles.
Yue Jia, Zhang Lei, Lu Jiangwei
doaj   +1 more source

Accounting for unobserved spatial variation in step selection analyses of animal movement via spatial random effects

open access: yesMethods in Ecology and Evolution, 2023
Step selection analysis (SSA) is a common framework for understanding animal movement and resource selection using telemetry data. Such data are, however, inherently autocorrelated in space, a complication that could impact SSA‐based inference if left ...
Rafael Arce Guillen   +5 more
doaj   +1 more source

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