標題: | Vital-Sign Processing Receiver With Clutter Elimination Using Servo Feedback Loop for UWB Pulse Radar System |
作者: | Chang, Chia-Hung Chen, Wei-Hsien 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | Clutter;Receivers;Servomotors;Radar clutter;Resistors;Sensors;Clutter elimination;servo feedback loop;ultrawideband (UWB);vital-sign radar |
公開日期: | 1-一月-2020 |
摘要: | This brief presents a vital-sign processing circuit for simultaneous dc/near-dc elimination and out-of-band interference rejection without any digital signal processing or algorithm assistance for the ultrawideband (UWB) pulse-based radar system. An intrinsic self-balanced MOS diode (SBMD) was proposed as a stable and balanced pseudo resistor applied under a servo feedback loop in a vital-sign receiver of the sensing radar to perform as a high-pass filter (HPF) with an ultralow corner frequency lower than 0.5 Hz for removing undesired clutters of the reflected signals and input dc-offset voltages from innate circuit offsets. A third-order switched-capacitor (SC) Chebyshev low-pass filter (LPF) with leap-frog topology as the subsequent stage was adopted to suppress the out-band noises, thereby establishing an integrated vital-sign processing circuit with bandpass frequency response and incorporating it into a radar module to verify its viability. |
URI: | http://dx.doi.org/10.1109/TVLSI.2019.2940035 http://hdl.handle.net/11536/153510 |
ISSN: | 1063-8210 |
DOI: | 10.1109/TVLSI.2019.2940035 |
期刊: | IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS |
Volume: | 28 |
Issue: | 1 |
起始頁: | 292 |
結束頁: | 296 |
顯示於類別: | 期刊論文 |