Approach radar with array antenna having rows and columns skewed relative to the horizontal
US7136012B2 · kind B2 · utility
2Cited by
14References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2003 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Apr 1, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/4463
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A monopulse precision landing or other land-based radar system uses an array antenna and a beamformer to produce sum, azimuth difference and elevation difference beams relative to the array. The rows and columns of the array are skewed relative to the horizontal for tending to reduce the effects of multipath propagation on altitude estimates. A coordinate converter converts target information from the skewed antenna coordinates to ordinary vertical and horizontal coordinates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.