Non-contact method for detectiing and distinguishing human and animal based on IR-UWB bio-radar signal
US11525889B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2020 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Jun 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/88
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A non-contact method for detecting and distinguishing a human and an animal based on IR-UWB bio-radar signals includes: step 1, transmitting a radar pulse to a target by a transmitting antenna of an IR-UWB bio-radar; and obtaining, by a receiving antenna of the IR-UWB bio-radar, a radar echo signal E(n,m) generated from the radar pulse reflected on the target; step 2: performing signal preprocessing on the radar echo signal E(n,m) obtained in step 1, to obtain a first energy signal E6(l); step 3: removing a direct wave from E6(l) obtained in step 2 to obtain a second energy signal E7(l), and obtaining a maximum amplitude E7max of E7(l) and a position lmax corresponding to the maximum amplitude in a slow time direction; step 4: calculating a peak-to-background ratio VEtoB of E7(l), calculating an average correlation coefficient rm, and determining a type of the target through a target detection and distinction rule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.