Spatially adaptive moving target indicator system for radar equipment
US4339754A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1978 |
| Grant date | Jul 13, 1982 |
| Priority date | — |
| Expiry date | Dec 26, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radar system is provided with first and second moving target indicator (MTI) systems. The first MTI system generally works better against ground clutter than against sky clutter. The second MTI system works well against sky clutter but generally requires a greater number of radar return echoes to discern targets in the sky clutter. A correlation estimation circuit is employed to calculate the correlation of clutter-like return echoes not suppressed by the first MTI system. If the return echoes are sufficiently correlated, the second MTI system is invoked against the clutter. If the return echoes are less well correlated, on the other hand, then electronic counter-counter measure systems may be invoked.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.