Design of Reliable Long-Distance Air-to-Ground Communication Systems Intended for Operation under Severe Multipath Propagation Disturbances - Otten, Klaus W. (I.R.E. transactions on aerospace and navigational electronics, 1962)
Keywords: Demodulation; Digital communication; Diversity reception; Doppler shift; Frequency diversity; Frequency modulation; Instruments; Protection; Pulse modulation; Redundancy