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-Jan-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
Appears in Collections:Articles