Distance to a stationary location estimator for a moving vehicle
US5233524A · kind A · utility
6Cited by
7References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1991 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Feb 12, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0676
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An estimator for determining the distance of a moving vehicle to a stationary position includes the determination of actual and estimated velocities of the vehicle along a selected path. An up-dated distance estimate is established by multiplying estimated distance by the ratio of the actual velocity to the estimated velocity. The up-dated estimate is then utilized as the estimated and another up-dated distance is obtained. Iterations continue until the ratio approaches unity indicating that the estimated distance is approximately equal to the actual distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.