Cooperative fall detection using Doppler radar and array sensor

Jihoon Hong, Shoichiro Tomii, Tomoaki Ohtsuki

研究成果: Conference contribution

19 引用 (Scopus)

抜粋

Doppler radar-based fall detection has been attractive due to its low cost and high detection performance. However, fall detection based on Doppler signatures is affected by the spatial variance due to the multipath and non-line-of-sight (NLOS) effects, which has been one of the key issues for detection performance in current Doppler radar-based systems. Moreover, the drawbacks of Doppler radar are the limited measurement range and sensitivity to the target's falling directions. In this paper, we present a cooperative fall detection system that uses a Doppler radar and an array sensor which can be used even for multipath and NLOS environments. We analyze the impact of Doppler signatures in multipath and NLOS environments and account for undesirable Doppler measurements. We use the temporal-spatial characteristics of the signals using an array sensor and propose a novel fall detection system, which cooperates with the Doppler radar to enhance fall detection performance in multipath and NLOS environments. We evaluate the proposed system performance in a typical laboratory environment in LOS and NLOS conditions. The experimental results show that the proposed system reduces the false alarm rate and improves true positive rate. Moreover, our proposed system can significantly enhance the fall detection accuracy compared with the corresponding only Doppler radar-based approach.

元の言語English
ホスト出版物のタイトル2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
ページ3492-3496
ページ数5
DOI
出版物ステータスPublished - 2013 12 1
イベント2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 - London, United Kingdom
継続期間: 2013 9 82013 9 11

出版物シリーズ

名前IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Other

Other2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
United Kingdom
London
期間13/9/813/9/11

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • これを引用

    Hong, J., Tomii, S., & Ohtsuki, T. (2013). Cooperative fall detection using Doppler radar and array sensor. : 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 (pp. 3492-3496). [6666753] (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC). https://doi.org/10.1109/PIMRC.2013.6666753