Clutter discriminating apparatus for use with pulsed doppler radar systems and the like
US4119966A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1977 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | Jul 14, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/2921
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In apparatus for discriminating targets from clutter, a high threshold circuit for passing only signals with sufficient amplitude and a lower threshold circuit passing signals of a sufficient amplitude to range extent circuitry, which passes only signals within a predetermined duration and which do not have other range signals adjacent thereto, and to frequency extent circuitry, which passes only signals within a predetermined bandwidth and which do not have other frequency signals adjacent thereto. Signals which satisfy the amplitude, range and frequency requirements then provide an output indicative of a target; all other signals are rejected as clutter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.