System and method for minimizing background noise in a microwave image using a programmable reflector array
US7327304B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2005 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Sep 20, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N22/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A microwave imaging system captures a microwave image of a target and minimizes noise in the microwave image using phase differentiation. A reflector antenna array is provided including a plurality of antenna elements for reflecting microwave radiation towards the target and for reflecting microwave radiation reflected from the target towards a microwave receiver. A processor programs the antenna elements with respective first phase shifts to capture a first microwave image of the target, and programs the antenna elements with respective second phase shifts to capture a second microwave image of the target. The first phase shift of each antenna element is 180 degrees different than the second phase shift for that antenna element. The processor minimizes noise from a combination of the first microwave image and the second microwave image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.