Method of classifying and identifying an object using Doppler radar
US5497158A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1994 |
| Grant date | Mar 5, 1996 |
| Priority date | — |
| Expiry date | Jul 13, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/9027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method of classifying and identifying an object, for example satellites, aircraft, land vehicles and ships with a Doppler radar system in which a video signal is generated by means of coherent signal processing and tracking data including, position and changes in position, are determined from the video signal for the object. The method includes representing the object as an inverse synthetic radar aperture image and then selecting a reference object with the aid of the tracking data and the rotational axis of the object. A representation of the reference object is rotated into a position that corresponds to the spatial rotational axis of the object and then superimposed over the inverse synthetic aperture radar image of the object. Identification of the object is effected by comparing the representation of the rotated reference object with the inverse synthetic aperture radar image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.