Gated video centroid tracker
US3950611A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1966 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Nov 22, 1986 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/7864
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A video tracking system that produces voltages representative of the location of a designated target relative to the tracking axis of a transducer. An error detector unit compares the position of a target, of selected intensity contrast, to that of a tracking gate and updates the gate position to track the target. The error detector unit includes a combination of two integrators coupled in series with two or more gate circuits that are synchronized with the tracking gate. The tracking response characteristic may be selected for optimum performance with expected target profiles by variation of the relative signal gain and timing of the gate circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.