Phase divider for complex signals

Details Phase divider for complex signals Phase divider for complex signals

1992-09-30

1994-05-10

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375 83, 332103, 329304, 307540, H03D 322, H04L 2722

Patent

active

053115554

ABSTRACT:
In a phase divider, a complex signal containing a sequence of samples of real and imaginary values is limited to a unit amplitude and multiplied by a first complex multiplier with a first feedback complex signal, the output the multiplier being fed through a loop filter to a second complex multiplier where the signal is multiplied with a second feedback complex signal. The output of the second multiplier is limited to a unit amplitude, delayed by a sample interval and applied to the second complex multiplier as the second feedback complex signal. The first feedback complex signal is derived by a circuit that raises the frequency the delayed signal by a desired factor.

REFERENCES:
patent: 4057759 (1977-11-01), Genova et al.
patent: 4065722 (1977-12-01), Francis
patent: 4092606 (1978-05-01), Ryan
patent: 4989220 (1991-01-01), Serrone
patent: 5056122 (1991-10-01), Price
patent: 5090027 (1992-02-01), Ohsawa
patent: 5255289 (1983-10-01), Tomita

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