Simultaneous Life Detection and Localization Using a Wideband Chaotic Signal with an Embedded Tone
A hybrid life detection radar system which transmits a wideband chaotic signal containing an embedded single-tone is proposed. The chaotic signal is used for target localization by the time-domain correlation method and synthetic aperture technique, and the single-tone signal is used to measure the...
| Main Authors: | , , , , , |
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| Format: | Article |
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MDPI AG
2016-11-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/16/11/1866 |
| _version_ | 1811279075467067392 |
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| author | Li Liu Chaoyi Guo Jingxia Li Hang Xu Jianguo Zhang Bingjie Wang |
| author_facet | Li Liu Chaoyi Guo Jingxia Li Hang Xu Jianguo Zhang Bingjie Wang |
| author_sort | Li Liu |
| collection | DOAJ |
| description | A hybrid life detection radar system which transmits a wideband chaotic signal containing an embedded single-tone is proposed. The chaotic signal is used for target localization by the time-domain correlation method and synthetic aperture technique, and the single-tone signal is used to measure the frequencies of breathing and heartbeat based on an on-chip split-ring integrated sensor and Michelson interference principle. Experimental results in free space and in through-wall scenarios demonstrate that the system can realize human detection and localization simultaneously with high range resolution, high sensitivity, and large dynamic range without complex signal processing. The range resolution is about 10 cm, and the dynamic range is 35 dB for the respiration signal detection and 25 dB for the heartbeat signal detection. Due to its good immunity to interference/jamming and high spectrum efficiency, the proposed system is suitable for post-disaster rescue, elder/infant/patient vitality monitoring, and anti-terrorism enforcement applications. |
| first_indexed | 2024-04-13T00:48:16Z |
| format | Article |
| id | doaj.art-f1b8da183e5d4eacb97e2300dfcc7d30 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T00:48:16Z |
| publishDate | 2016-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-f1b8da183e5d4eacb97e2300dfcc7d302022-12-22T03:09:57ZengMDPI AGSensors1424-82202016-11-011611186610.3390/s16111866s16111866Simultaneous Life Detection and Localization Using a Wideband Chaotic Signal with an Embedded ToneLi Liu0Chaoyi Guo1Jingxia Li2Hang Xu3Jianguo Zhang4Bingjie Wang5Key Laboratory of Advanced Transducers & Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, ChinaKey Laboratory of Advanced Transducers & Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, ChinaKey Laboratory of Advanced Transducers & Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, ChinaKey Laboratory of Advanced Transducers & Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, ChinaKey Laboratory of Advanced Transducers & Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, ChinaKey Laboratory of Advanced Transducers & Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, ChinaA hybrid life detection radar system which transmits a wideband chaotic signal containing an embedded single-tone is proposed. The chaotic signal is used for target localization by the time-domain correlation method and synthetic aperture technique, and the single-tone signal is used to measure the frequencies of breathing and heartbeat based on an on-chip split-ring integrated sensor and Michelson interference principle. Experimental results in free space and in through-wall scenarios demonstrate that the system can realize human detection and localization simultaneously with high range resolution, high sensitivity, and large dynamic range without complex signal processing. The range resolution is about 10 cm, and the dynamic range is 35 dB for the respiration signal detection and 25 dB for the heartbeat signal detection. Due to its good immunity to interference/jamming and high spectrum efficiency, the proposed system is suitable for post-disaster rescue, elder/infant/patient vitality monitoring, and anti-terrorism enforcement applications.http://www.mdpi.com/1424-8220/16/11/1866life detection radarthrough-wallchaotic signalColpitts oscillatorsplit ring |
| spellingShingle | Li Liu Chaoyi Guo Jingxia Li Hang Xu Jianguo Zhang Bingjie Wang Simultaneous Life Detection and Localization Using a Wideband Chaotic Signal with an Embedded Tone Sensors life detection radar through-wall chaotic signal Colpitts oscillator split ring |
| title | Simultaneous Life Detection and Localization Using a Wideband Chaotic Signal with an Embedded Tone |
| title_full | Simultaneous Life Detection and Localization Using a Wideband Chaotic Signal with an Embedded Tone |
| title_fullStr | Simultaneous Life Detection and Localization Using a Wideband Chaotic Signal with an Embedded Tone |
| title_full_unstemmed | Simultaneous Life Detection and Localization Using a Wideband Chaotic Signal with an Embedded Tone |
| title_short | Simultaneous Life Detection and Localization Using a Wideband Chaotic Signal with an Embedded Tone |
| title_sort | simultaneous life detection and localization using a wideband chaotic signal with an embedded tone |
| topic | life detection radar through-wall chaotic signal Colpitts oscillator split ring |
| url | http://www.mdpi.com/1424-8220/16/11/1866 |
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