A novel micro-doppler coherence loss for deep learning radar applications

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Abstract

Deep learning techniques are subject to increasing adoption for a wide range of micro-Doppler applications, where predictions need to be made based on time-frequency signal representations. Most, if not all, of the reported applications focus on translating an existing deep learning framework to this new domain with no adjustment made to the objective function. This practice results in a missed opportunity to encourage the model to prioritize features that are particularly relevant for micro-Doppler applications. Thus the paper introduces a micro-Doppler coherence loss, minimized when the normalized power of micro-Doppler oscillatory components between input and output is matched. The experiments conducted on real data show that the application of the introduced loss results in models more resilient to noise.
Original languageEnglish
Number of pages4
Publication statusAccepted/In press - 20 Sep 2021
EventEuropean Radar Conference - Excel London Exhibition & Conference Centre, London, United Kingdom
Duration: 13 Feb 202218 Feb 2022
https://www.eumw2021.com

Conference

ConferenceEuropean Radar Conference
Abbreviated titleEuRAD
Country/TerritoryUnited Kingdom
CityLondon
Period13/02/2218/02/22
Internet address

Keywords

  • Doppler radar
  • micro-Doppler
  • deep learning
  • radar classification

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