System for synthesizing a modulated signal

Details System for synthesizing a modulated signal System for synthesizing a modulated signal

1990-07-30

1991-12-31

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 67, 332103, H04L 2712, H03C 152

Patent

active

050777572

ABSTRACT:
A modulation system and associated method therefor for synthesizing a modulated signal. Information is converted into an in-phase signal portion and a quadrature signal portion. The two signal portions are combined by summation and difference operations, and the results are stored in registers. A multiplexer samples the resultant values stored in the registers wherein each register is sampled at least once during a period defined by a frequency of a carrier. The output of the multiplexer is a synthesized, modulated signal.

REFERENCES:
Digital Communications, John G. Proakis, pp. 171-178.
Introduction to Communication Systems, F. G. Stremler, pp. 590-596.

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