Forward looking radar
US5132686A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Mar 7, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a forward looking radar in which from flying or stationary carriers land or marine surfaces in a forward lying sector region are imaged two-dimensionally, an antenna mounted rigidly on a carrier is made up of a plurality of individual elements preferably in the form of horn antennas arranged rectilinearly in a row adjacent each other in such a manner that for a predetermined aperture length l of each individual element and for a predetermined spacing of the individual elements the antenna has an antenna length L=n.multidot.l. The transmission is incoherent from a single element and thereafter simultaneous reception is effected with the remaining individual elements. To implement a digital coupling of the individual elements each said element is evaluated separately digitally and by correlation of a specific predetermined reference function a digital processing is carried out for each angular region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.