Stacked beam radar and target height measurement extractor especially for use therein
US4649389A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1984 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Mar 27, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/48
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radar having a multiplicity of receive beams stacked in elevation and a target height extractor especially for use therein are disclosed. In operation, a set of range sweeps corresponding to an azimuth scan of the stacked receive beams across a detected target is established. A range cell interval corresponding to the detected target is estimated for each range sweep of the set. A target range measurement is computed from a set of estimated range intervals. Only the radar receive beam echo information corresponding to the estimated range cell interval for each range sweep of the established set is used by the height extractor to compute a corresponding set of elevation angles. A target elevation angle is formed as the weighted average of this computed set. Only one height computation is performed for each established set of range sweeps based on a function of factors including the computed target elevation angle and computed range measurement of the corresponding established set of range sweeps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.