Title: VOR receiver with improved performance in a Doppler navigation system

Abstract: VOR receiver which operates in known manner when receiving from normal VOR ground stations, SSB-DVOR and DSB-DVOR ground stations, and with substantially improved accuracy when receiving ASB-DVOR ground stations. When the receiver receives ASB signals, one sideband is suppressed, and the phases of the half-wave-shaped signals present after demodulation of the other sideband are measured. The azimuth is determined from the measured phase values of each complete antenna cycle by Fourier integration.

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Inventors: Kohler, Karl (Heimerdingen, DT)

Application Number: 462645
Filing Date: 1974-04-22
Publication_date: 1976-10-26
Assignee: International Standard Electric Corporation (New York, NY)
Primary Class(es): 342/402
Other Classes:
US Patent Ref:

3448453	Jun, 1969	Earp et al.	343/106.
3778831	Dec, 1973	Marchand	343/106.

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