Range processor for DME
US4554547A · kind A · utility
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4References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 13, 1982 |
| Grant date | Nov 19, 1985 |
| Priority date | — |
| Expiry date | Dec 13, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/785
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A range processor for airborne distance measuring equipment in which coherency of reply signals from the ground based DME station is determined by incrementing the contents of storage locations of a random access memory device for each reply signal according to the time of reception of the reply signal and for decrementing the contents of the storage location if no reply signal is received. Whenever the contents of a storage location exceeds a threshold value a range gate is generated so that the next reply received within the range gate causes the time of reception of the reply to be stored as range data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.