Augmenting experimental data with simulations to improve activity classification in healthcare monitoring

Chong Tang, Shelly Vishwakarma, Wenda Li, Raviraj Adve, Simon Julier, Kevin Chetty

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)


Human micro-Doppler signatures in most passive WiFi radar (PWR) scenarios are captured through real-world measurements using various hardware platforms. However, gathering large volumes of high quality and diverse real radar datasets has always been an expensive and laborious task. This work presents an open-source motion capture data-driven simulation tool SimHumalator that is able to generate human micro-Doppler radar data in PWR scenarios. We qualitatively compare the micro-Doppler signatures generated through SimHumalator with the measured real signatures. Here, we present the use of SimHumalator to simulate a set of human actions. We demonstrate that augmenting a measurement database with simulated data, using SimHumalator, results in an 8% improvement in classification accuracy. Our results suggest that simulation data can be used to augment experimental datasets of limited volume to address the cold-start problem typically encountered in radar research.
Original languageEnglish
Title of host publication2021 IEEE Radar Conference (RadarConf21)
Subtitle of host publicationRadar on the move
Number of pages6
Publication statusPublished - 7 May 2021
Event2021 IEEE Radar Conference : Radar on the move - Atlanta, United States
Duration: 8 May 202114 May 2021


Conference2021 IEEE Radar Conference
Abbreviated titleRadarConf21
Country/TerritoryUnited States


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