Title: Doppler ILS receiver with beat signal scan synchronization

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.

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Inventors: Barton, Paul (Bishop Stortford, EN)

Application Number: 488565
Filing Date: 1974-07-15
Publication_date: 1976-03-09
Assignee: International Standard Electric Corporation (New York, NY)
Primary Class(es): 342/408 342/402
Other Classes:
US Patent Ref:

3670337	Jun, 1972	Earp et al.	343/108.
3866227	Feb, 1975	Ruvin	343/106.

Other Refs:
Primary Examiner: Tubbesing, T. H.
Assistant Examiner: Berger, Richard E.
Attorney: O'Neil; William T.