Angular discrimination process and device for radar
US4903030A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1987 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Jul 2, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/586
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a process and device for the angular discrimination of targets by airborne radar, the angular position of a point on the ground is ascertained as a function of the Doppler frequency of an echo signal relating to the point under consideration, as determined by passband filtering the echo signals. The Doppler frequencies are selected by a bank of filters and an angular determination is made by analyzing signals including a signal representing the position in the bank of that filter selecting the Doppler frequency of the echo signal, and a reference frequency subject to closed loop control and representing the true Doppler frequency of the ground. Means are provided for maintaining data relating to the position and the range of the target constant during the process of analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.