Towards the Identification of Outliers in Satellite Telemetry Data by Using Fourier Coefficients

  • Fabien BouleauEmail author
  • Christoph Schommer
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8946)


Spacecrafts provide a large set of on-board components information such as their temperature, power and pressure. This information is constantly monitored by engineers, who capture the outliers and determine whether the situation is abnormal or not. However, due to the large quantity of information, only a small part of the data is being processed or used to perform anomaly early detection. A common accepted research concept for anomaly prediction as described in literature yields on using projections, based on probabilities, estimated on learned patterns from the past [6] and data mining methods to enhance the conventional diagnosis approach [14]. Most of them conclude on the need to build a pattern identity chart. We propose an algorithm for efficient outlier detection that builds an identity chart of the patterns using the past data based on their curve fitting information. It detects the functional units of the patterns without apriori knowledge with the intent to learn its structure and to reconstruct the sequence of events described by the signal. On top of statistical elements, each pattern is allotted a characteristics chart. This pattern identity enables fast pattern matching across the data. The extracted features allow classification with regular clustering methods like support vector machines (SVM). The algorithm has been tested and evaluated using real satellite telemetry data. The outcome and performance show promising results for faster anomaly prediction.


Data mining Time series Machine learning Pattern identification 



This work has been made within the research project SPACE, which is an interdisciplinary research project between the University Luxembourg, Department of Computer Science and SES Engineering. We thank all the SPACE members as well as all the SES engineers for their kind support. The views expressed herein represent the authors’ views only and do not in any way bind or commit SES Engineering itself.


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.SES Engineering, Chateau de BetzdorfBetzdorfLuxembourg
  2. 2.Department of Computer Science and CommunicationUniversity of LuxembourgLuxembourgLuxembourg

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