Simultaneous-delay correlator apparatus
US4783640A · kind A · utility
3Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1987 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Dec 28, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R23/175
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A correlator apparatus that simultaneously delays two time-varying input signals using just a single transmission line, with the signals being connected to opposite ends of the line. Directional couplers spaced along the transmission line extract delayed versions of the two input signals, for correlation by a bank of correlators, to produce a correlation envelope for the two signals. The apparatus is substantially less massive than prior apparatus of this kind and can be easily constructed and aligned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.