Phase modulated system with phase domain filtering

Details Phase modulated system with phase domain filtering Phase modulated system with phase domain filtering

1988-05-13

1990-10-09

Olms, Douglas W.

Pulse or digital communications

Repeaters

Testing

375 83, 375 86, 375 96, H04L 2718

Patent

active

049625101

ABSTRACT:
A phase modulation system includes a phase mapping circuit (218) for mapping binary data into a plurality of discrete phase values in accordance with a predetermined phase modulation scheme. The discrete phase values are then filtered in the phase domain by a filter (220) to provide a filtered output. This filtered output is then digitized and input to a numerically controlled oscillator for phase modulating a carrier.

REFERENCES:
patent: 4339724 (1982-07-01), Feher
patent: 4567602 (1986-01-01), Kato et al.
patent: 4613976 (1986-09-01), Sewerinson et al.
patent: 4745628 (1988-05-01), McDavid et al.

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