TY - GEN
T1 - Multi-Target Concurrent Vital Sign and Location Detection using Super-regenerative Oscillator-Based Metamaterial Pulsed Radar
AU - Yuan, Yichao
AU - Wu, Chung Tse Michael
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - This paper presents a new kind of super-regenerative oscillator (SRO)-based metamaterial (MTM) pulsed radar to detect multi-target vital sign signals and locations simultaneously. A triangular waveform of 100 Hz is imposed as the quench signal to operate the radar system under the SRO mode. A MTM leaky wave antenna (LWA) is incorporated to scan from -30 ° to +25 ° with the frequency changing from 2.22 GHz to 2.79 GHz. Modulated by the quench signal, the proposed SRO radar can generate pulse train-like waveforms. As such, the distance can be obtained by calculating the time of flight between the transmitted and received signals through the cross-correlation method in the time domain. Experimental results show that the proposed SRO-based MTM pulsed radar sensor can detect the target location accurately. Furthermore, the proposed SRO-based MTM pulsed radar can also detect Doppler signatures at the same time, where measured actuator vibration frequency as well as multi-target vital sign information agree well with the ground truth.
AB - This paper presents a new kind of super-regenerative oscillator (SRO)-based metamaterial (MTM) pulsed radar to detect multi-target vital sign signals and locations simultaneously. A triangular waveform of 100 Hz is imposed as the quench signal to operate the radar system under the SRO mode. A MTM leaky wave antenna (LWA) is incorporated to scan from -30 ° to +25 ° with the frequency changing from 2.22 GHz to 2.79 GHz. Modulated by the quench signal, the proposed SRO radar can generate pulse train-like waveforms. As such, the distance can be obtained by calculating the time of flight between the transmitted and received signals through the cross-correlation method in the time domain. Experimental results show that the proposed SRO-based MTM pulsed radar sensor can detect the target location accurately. Furthermore, the proposed SRO-based MTM pulsed radar can also detect Doppler signatures at the same time, where measured actuator vibration frequency as well as multi-target vital sign information agree well with the ground truth.
KW - Location detection
KW - metamaterials (MTMs)
KW - pulsed radar
KW - super-regenerative oscillator (SRO)
KW - vital sign detection
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U2 - 10.1109/IMS37962.2022.9865608
DO - 10.1109/IMS37962.2022.9865608
M3 - Conference contribution
AN - SCOPUS:85137974258
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 951
EP - 954
BT - 2022 IEEE/MTT-S International Microwave Symposium, IMS 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE/MTT-S International Microwave Symposium, IMS 2022
Y2 - 19 June 2022 through 24 June 2022
ER -