Methods and systems for suppressing clutter in radar systems
US9971027B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2017 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Nov 10, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03605
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems for suppressing clutter, for example, ground clutter, in radar systems are provided. The methods and systems can be employed in radar systems having an antenna system and at least two receive beams, for example, a main beam and an auxiliary beam. The methods include receiving data streams from each of the at least two receive beams, where each data stream is associated with range bins and include data representing clutter, and, before or after Doppler filtering, generating an adaptive weight from summations of the data streams for each of the range bins, and applying the generated weight to at least one of the data streams to provide Doppler filtered and spatially nulled data streams that can be used to more accurately identify targets, such as, aircraft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.