1. An experimental vital signs detection radar using low-IF heterodyne architecture and single-sideband transmission
- Author
-
Lei Yan, Tom K. Johansen, and Brian Sveistrup Jensen
- Subjects
Heterodyne ,Signal processing ,Computing and Processing ,Radar ,biomedical measurement ,Computer science ,Low-IF architecture ,law.invention ,Continuous-wave radar ,Human vital signs ,Radar engineering details ,Transmission (telecommunications) ,Intermediate frequency ,law ,Electronic engineering ,radar detection ,Compatible sideband transmission ,Single-sideband transmission - Abstract
In this paper an experimental X-band radar system, called DTU-VISDAM, developed for the detection and monitoring of human vital signs is described. The DTU-VISDAM radar exploits a low intermediate frequency (IF) heterodyne RF front-end architecture and single-sideband (SSB) transmission for easier and more reliable extraction of the vital signs. The hardware implementation of the proposed low-IF RF front-end architecture and associated IF circuitry is discussed. Furthermore, the signal processing and calibration steps necessary to extract the vital signs information measured on a human subject are described.
- Published
- 2013