Abstract
This paper presents a concurrent dual-band radar system for noncontact tracking of vital signs (e.g., respiration and heartbeat), and indoor short-range localization. The proposed sensor, which has been achieved with our own customized concurrent dual-band subsystems, operates at 1.67 and 2.06 GHz synchronously. Based on the Doppler principle, tiny vital signs are obtained by analysis of spectrum of the signals received at each individual frequency band. Moreover, the location of a target is estimated based on the phase difference between these two closely spaced frequencies. The azimuth information is obtained by beam scanning. Combining the results of range and azimuth information allows the radar system to plot two-dimensional maps. As a result, the proposed radar is capable of monitoring human’s life activities and tracking the location of individuals continuously. System-level experiments were carried out to reveal the versatile capability of the life activity monitoring system.
Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article
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© 2020 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Research Articles
- A concurrent dual-band radar sensor for vital sign tracking and short-range positioning
- Scanning rate enhancement in substrate integrated waveguide periodic leaky wave antenna with continuous beam scanning using delay lines
- Smart DRA for beam width and orientation control
- Multiband planar antenna with CSRR loaded ground plane for WLAN and fixed satellite service applications
- A metamaterial loaded hybrid fractal multiband antenna for wireless applications with frequency band reconfigurability characteristics
- Investigation on two dimensional photonic crystal based two/three input all optical AND gate
- A balanced-to-balanced directional coupler based on branch-slotline coupled structure
- An improved technique for low-loss material complex permittivity and permeability determination from transmission-only measurements
Articles in the same Issue
- Frontmatter
- Research Articles
- A concurrent dual-band radar sensor for vital sign tracking and short-range positioning
- Scanning rate enhancement in substrate integrated waveguide periodic leaky wave antenna with continuous beam scanning using delay lines
- Smart DRA for beam width and orientation control
- Multiband planar antenna with CSRR loaded ground plane for WLAN and fixed satellite service applications
- A metamaterial loaded hybrid fractal multiband antenna for wireless applications with frequency band reconfigurability characteristics
- Investigation on two dimensional photonic crystal based two/three input all optical AND gate
- A balanced-to-balanced directional coupler based on branch-slotline coupled structure
- An improved technique for low-loss material complex permittivity and permeability determination from transmission-only measurements