Subaperture clutter filter with CFAR signal detection
US9429644B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2013 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Jan 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/348
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The various technologies presented herein relate to the determination of whether a received signal comprising radar clutter further comprises a communication signal. The communication signal can comprise of a preamble, a data symbol, communication data, etc. A first portion of the radar clutter is analyzed to determine a radar signature of the first portion of the radar clutter. A second portion of the radar clutter can be extracted based on the radar signature of the first portion. Following extraction, any residual signal can be analyzed to retrieve preamble data, etc. The received signal can be based upon a linear frequency modulation (e.g., a chirp modulation) whereby the chirp frequency can be determined and the frequency of transmission of the communication signal can be based accordingly thereon. The duration and/or bandwidth of the communication signal can be a portion of the duration and/or the bandwidth of the radar clutter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.