Methods and apparatus for electromagnetic signal polarimetry sensing
US9857316B2 · kind B2 · utility
2Cited by
6References
13Claims
0Family size
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Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | May 7, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A90/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method of identifying changes utilizing radio frequency polarization includes receiving a reflected and/or transmitted polarized radio frequency signal at a receiver, filtering, amplifying and conditioning the received signal, converting the received signal from an analog format to a digital format, processing the digital signal to elicit a polarization mode dispersion feature of the received signal, and comparing the polarization mode dispersion features to a known calibration to detect a change in a characteristic of the target object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.