Auto-balance method and apparatus for suppression of residual li

Details Auto-balance method and apparatus for suppression of residual li Auto-balance method and apparatus for suppression of residual li

1982-09-02

1984-10-23

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

370107, H04K 100

Patent

active

044792271

ABSTRACT:
An automatic residual line suppression system for use with a spread spectrum signal wherein a narrow-band sample of the signal around a selected frequency is multiplied by a dithered signal in an auto-balance control loop. A resulting signal is used to control the dc offset of a mixer in order to minimize the residual carrier line in the signal spectrum while any remaining detectible residual lines are smeared by a noise source during up-conversion.

REFERENCES:
patent: 3562420 (1971-02-01), Thompson
patent: 3878527 (1975-04-01), Rensin et al.
patent: 4017798 (1977-04-01), Gordy et al.
patent: 4279018 (1981-07-01), Carson

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