Interferometric inverse synthetic aperture radar and method
US9188670B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2012 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Jun 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/9064
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interferometric inverse synthetic aperture radar (IFISAR) is described that can provide a height measurement of moving objects on a surface using a small radar aperture. The IFISAR includes a two-dimensional antenna array including a plurality of elements that are configured to receive a plurality of return signals carrying energy of a transmitted RF signal that are reflected from the target. A first antenna group and a second antenna group of the plurality of elements respectively located at opposite ends of the array are enabled, and a third antenna group of the plurality of elements located between the first antenna group and the second antenna group are disabled. A processor of the IFISAR is operatively coupled to the plurality of elements and configured to determine height characteristics of the target according to interferometric processing of the return signals received by the first antenna group and the second antenna group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.