Doppler ILS receiver with beat signal scan synchronization
US3943518A · kind A · utility
1Cited by
2References
4Claims
0Family size
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Key dates
| Filing date | Jul 15, 1974 |
| Grant date | Mar 9, 1976 |
| Priority date | — |
| Expiry date | Jul 15, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S1/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Radio navigation receiver apparatus for operation with ground beacon equipment of the simulated Doppler type (having a commutated array). The receiver derives a beat between the received ground beacon (commutated) signals and a reference signal also from the ground beacon. Angular information is extracted from this beat signal. Means are included for determining the commutation times and scan reversals at the receiver location, so that the effect of phase transients can be ameliorated by discriminating against the received signal at these phase transient times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.