Results 21 to 30 of about 606,502 (220)

Development of a methodology for identifying anomalies in telemetry data of small spacecraft using the ensemble method [PDF]

E3S Web of Conferences
This study includes work related to the analysis of satellite telemetry data. Prior to that, the focus is on investigating various ways of finding anomalies in telemetry data.
Aleshko Roman, Sakhnik Arseniy, Vasiliev Anton, Berezovsky Vladimir, Shoshina Ksenia   +4 more
doaj   +1 more source

Challenges in small cetacean telemetry: an attempt at developing a remotely deployed attachment device for single-pin dorsal fin satellite transmitters

Animal Biotelemetry, 2023
Satellite telemetry is critical for collecting fine-scale temporal and spatial data on individual animals that has broad-scale applicability at population and species levels.
Brian C. Balmer, Andrew J. Westgate, Wayne E. McFee   +2 more
doaj   +1 more source

On-board multi-lane parallel MLVDS bus design for in-orbit embedded satellite test device

The Journal of Engineering, 2019
The traditional satellite prognostic and health management (PHM) mostly relies on the satellite downlink telemetry data. Nowadays, the application of satellite becomes more diversification and its function becomes much more complicated.
Zhiyuan Chen, Xiuhai Cui, Ning Ma, Datong Liu   +3 more
doaj   +1 more source

Influence of topography and canopy cover on argos satellite telemetry performance

Wildlife Society Bulletin, 2012
Environmental variables can affect performance of global positioning system (GPS) telemetry; however, similar assessments have not been reported for Argos satellite telemetry. We used a stratified random design and linear mixed‐effects models to evaluate
Joel D. Sauder, Janet L. Rachlow, Michelle M. Wiest   +2 more
doaj   +1 more source

Research on fault detection and principal component analysis for spacecraft feature extraction based on kernel methods

Open Astronomy, 2022
Satellite anomaly is a process of evolution. Detecting this evolution and the underlying feature changes is critical to satellite health prediction, fault early warning, and response.
Fu Na, Zhang Guanghua, Xia Keqiang, Qu Kun, Wu Guan, Han Minzhang, Duan Junru   +6 more
doaj   +1 more source

Validation and Evaluation of Ocean Calibration Accuracy of FY-3G Precipitation Measurement Radar

应用气象学报
FY-3G precipitation satellite launched in April 2023 is the first dedicated precipitation measurement satellite in China. The dual-frequency precipitation measurement radar (PMR) is the core instrument on the satellite.
Yuan Mei, Yin Honggang, Shang Jian, Jiang Baisen, Yang Runfeng, Gu Songyan, Zhang Peng   +6 more
doaj   +1 more source

Model‐based clustering reveals patterns in central place use of a marine top predator

Ecosphere, 2020
Satellite telemetry data are commonly used to quantify habitat selection, examine animal movements, and delineate home ranges. These data also contain valuable information concerning dens, nests, roosts, and other central places that are often associated
Brian M. Brost, Mevin B. Hooten, Robert J. Small   +2 more
doaj   +1 more source

Station-Keeping Maneuvers for a Geostationary Satellite Using Linear Quadratic Regulator [PDF]

Journal of Astronomy and Space Sciences, 1997
This paper applied one of the well-known optimal control theory, namely, linear quadratic regulator(LQR), to the station-keeping maneuvers(SKM) for a geostationary satellite.
Sunik Lee, Kyu-Hong Choi, Sanguk Lee
doaj  

Satellite telemetry and long-range bat movements. [PDF]

PLoS ONE, 2011
BackgroundUnderstanding the long-distance movement of bats has direct relevance to studies of population dynamics, ecology, disease emergence, and conservation.Methodology/principal findingsWe developed and trialed several collar and platform terminal ...
Craig S Smith, Jonathan H Epstein, Andrew C Breed, Raina K Plowright, Kevin J Olival, Carol de Jong, Peter Daszak, Hume E Field   +7 more
doaj   +1 more source

A Novel Framework for Anomaly Detection for Satellite Momentum Wheel Based on Optimized SVM and Huffman-Multi-Scale Entropy

Entropy, 2021
The health status of the momentum wheel is vital for a satellite. Recently, research on anomaly detection for satellites has become more and more extensive. Previous research mostly required simulation models for key components.
Yuqing Li, Mingjia Lei, Pengpeng Liu, Rixin Wang, Minqiang Xu   +4 more
doaj   +1 more source