Semi-Supervised Techniques for Detecting Previously Unseen Radar Behaviors

The rapid advance in multifunction radars (MFRs) whose behavior model can be promptly reprogrammed complicates the task of electrical warfare (EW) systems. It is crucial that an EW system be able to detect the change in a radar’s behavior when it happens. In this article, two contextual a...

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Main Authors: Jayson Rook, Chi-Hao Cheng
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10177924/
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author Jayson Rook
Chi-Hao Cheng
author_facet Jayson Rook
Chi-Hao Cheng
author_sort Jayson Rook
collection DOAJ
description The rapid advance in multifunction radars (MFRs) whose behavior model can be promptly reprogrammed complicates the task of electrical warfare (EW) systems. It is crucial that an EW system be able to detect the change in a radar’s behavior when it happens. In this article, two contextual anomaly detection techniques based on Hidden Markov Models (HMM) and Long Short-Term Memories (LSTM) are applied to detect an MFR’s behavior change. Both of them are trained based on known radar modes and indicate the presence of an anomaly radar mode when the signal sequence emitted by the radar does not match the EW system’s prediction based on known modes. This topic is important as the EW systems relying on libraries of knowns radar signals would be in a dangerous situation when encountering an unknown radar behavior in practice and knowing the existence of such a radar mode can increase the system’s survivability. The results demonstrate the great potential of these techniques when applied in EW applications. However, the HMM holds the advantage over the LSTM if the MFR changes its mode more frequently.
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spelling doaj.art-1b32c1524bc34e7dbfc3290b7ee6abc42023-07-25T23:00:36ZengIEEEIEEE Access2169-35362023-01-0111703687037610.1109/ACCESS.2023.329426810177924Semi-Supervised Techniques for Detecting Previously Unseen Radar BehaviorsJayson Rook0Chi-Hao Cheng1https://orcid.org/0000-0001-8104-3114Department of Electrical and Computer Engineering, Miami University, Oxford, OH, USADepartment of Electrical and Computer Engineering, Miami University, Oxford, OH, USAThe rapid advance in multifunction radars (MFRs) whose behavior model can be promptly reprogrammed complicates the task of electrical warfare (EW) systems. It is crucial that an EW system be able to detect the change in a radar’s behavior when it happens. In this article, two contextual anomaly detection techniques based on Hidden Markov Models (HMM) and Long Short-Term Memories (LSTM) are applied to detect an MFR’s behavior change. Both of them are trained based on known radar modes and indicate the presence of an anomaly radar mode when the signal sequence emitted by the radar does not match the EW system’s prediction based on known modes. This topic is important as the EW systems relying on libraries of knowns radar signals would be in a dangerous situation when encountering an unknown radar behavior in practice and knowing the existence of such a radar mode can increase the system’s survivability. The results demonstrate the great potential of these techniques when applied in EW applications. However, the HMM holds the advantage over the LSTM if the MFR changes its mode more frequently.https://ieeexplore.ieee.org/document/10177924/Anomaly detectionelectronic warfare (EW)hidden Markov model (HMM)long short-term memory (LSTM)multifunction radar (MFR)
spellingShingle Jayson Rook
Chi-Hao Cheng
Semi-Supervised Techniques for Detecting Previously Unseen Radar Behaviors
IEEE Access
Anomaly detection
electronic warfare (EW)
hidden Markov model (HMM)
long short-term memory (LSTM)
multifunction radar (MFR)
title Semi-Supervised Techniques for Detecting Previously Unseen Radar Behaviors
title_full Semi-Supervised Techniques for Detecting Previously Unseen Radar Behaviors
title_fullStr Semi-Supervised Techniques for Detecting Previously Unseen Radar Behaviors
title_full_unstemmed Semi-Supervised Techniques for Detecting Previously Unseen Radar Behaviors
title_short Semi-Supervised Techniques for Detecting Previously Unseen Radar Behaviors
title_sort semi supervised techniques for detecting previously unseen radar behaviors
topic Anomaly detection
electronic warfare (EW)
hidden Markov model (HMM)
long short-term memory (LSTM)
multifunction radar (MFR)
url https://ieeexplore.ieee.org/document/10177924/
work_keys_str_mv AT jaysonrook semisupervisedtechniquesfordetectingpreviouslyunseenradarbehaviors
AT chihaocheng semisupervisedtechniquesfordetectingpreviouslyunseenradarbehaviors