Synthetic aperture radar smearing
US8836569B1 · kind B1 · utility
4Cited by
1References
47Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1994 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Jul 11, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/90
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A synthetic aperture radar's surveillance is defeated by electronic camouflage that employs a protective shield to cover an intended target. The shield intercepts and modifies the interrogating radar pulses by modulating incident radar pulses to produce radar echoes shifted in Doppler frequency, whereby the returned echoes give a false depiction of the target, even to smearing the radar display. New structures are presented that exhibit variable reflectivity and variable dielectric characteristics of particular use in the foregoing and other electronic systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.