Method for detecting, over several antenna revolutions, slow-moving targets buried in the radar clutter, using a mobile radar having a rotary antenna
US9513366B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2012 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Aug 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for detecting targets using a mobile radar having a rotary antenna, notably small targets buried in radar clutter, without increasing the number of false detections, includes determining pre-detections during N antenna revolutions, including determining pre-detections revolution by revolution, each pre-detection being stored in a grid of cells centered on the position that the radar occupied at the start of the current revolution, each grid cell corresponding to an azimuth range and a distance range. This step also includes, at the end of each revolution, a step of shifting all the pre-detections stored in the grid during the previous revolutions by the movement undergone by the radar during the last revolution. The method also includes determining detections, a target being detected from the moment that a set of pre-detections stored in the grid has its distances to the radar which constitute a linear progression during the N antenna revolutions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.