Target recognition
US4972193A · kind A · utility
26Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 12, 1990 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Jan 12, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/412
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for recognizing a target such as a ship comprises a radar for successively sweeping the target to obtain input data representing the return amplitude from different target angles; a filter for selecting from the input data those significant ranges at which there is a significantly high amplitude; and a range difference compiler for identifying the frequency of occurrence of each of several range differences between pairs of the significant ranges, the most common range differences (expressed as a histogram) being representative of the distances between major reflectors on the target and thus distinctive of the target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.