Method for the transmission of digital data

Details Method for the transmission of digital data Method for the transmission of digital data

1986-12-08

1988-09-27

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375100, 375102, 380 34, H04L 2722, H04L 108

Patent

active

047747161

ABSTRACT:
A method for the transmission of digital data by means of phase modulation (PSK) and "frequency hopping", in which symbols are transmitted several times in different transmission sections as synchronization information for coherent demodulation, and wherein weighting factors taking into consideration the existence and influence of a disturbance source are calculated for each symbol. The symbol values are multiplied by these weighting factors before the values of corresponding symbols are linearly combined and utilized for evaluation.

REFERENCES:
patent: 3795865 (1974-03-01), Armstrong
patent: 4066964 (1978-01-01), Costanza et al.
patent: 4179586 (1979-12-01), Mathews, Jr. et al.
patent: 4550414 (1985-10-01), Guinon et al.
patent: 4583048 (1986-04-01), Gumacos et al.

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