Application of time reversal to synthetic aperture imaging
US7928896B2 · kind B2 · utility
25Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2008 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Aug 8, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/904
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for target focusing and ghost image removal in synthetic aperture radar (SAR) is disclosed. Conventional SAR is not designed for imaging targets in a rich scattering environment. In this case, ghost images due to secondary reflections appear in the SAR images. We demonstrate, how, from a rough estimate of the target location obtained from a conventional SAR image and using time reversal, time reversal techniques can be applied to SAR to focus on the target with improved resolution, and reduce or remove ghost images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.