Finding the range to a moving object by means of an angle-only sensor
US6580387B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Dec 19, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S11/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for calculating the range to a moving object by way of a sensor that determines the angle of the object. The sensor and the object move relative to one another, and after one measurement the procedure is as follows: on the assumption that the target maintains a constant velocity, a number of possible target ranges are calculated, as well as areas of uncertainty associated with these ranges, so-called “straight trajectory models” (410, 411, 412), on the assumption that the target accelerates, a number of possible target ranges are calculated, as well as areas of uncertainty associated with these ranges, so-called “maneuvering models” (420, 421, 422), a number of the straight trajectory models (410, 411, 412) having a maneuvering model assigned to them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.