Method for range determination
US5504489A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1994 |
| Grant date | Apr 2, 1996 |
| Priority date | — |
| Expiry date | Nov 17, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determination of positions of measurement objects from a number of measurements of the directions to the measurement objects made at separate points in time. During the initial measurements of the directions to the measurement objects, a number of assumed areas, within which the measurement objects are assumed to be located, are established along the direction to each measurement object. Subsequent measurements of the directions to the measurement objects are performed from at least two different measurement stations, which between the points in time are moved along different paths. In connection with the measurement of the directions to the measurement objects, the positions of the assumed areas are compared with the expected appearances of the measurement objects, and the assumed areas which exhibit the best correlation to the expected appearances of the corresponding measurement object are assumed to represent the positions of the measurement objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.