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Method and system for correction of dc and agc. RU patent 2458457.

FIELD: electricity.

SUBSTANCE: method to process of a radio-frequency (RF) accepted signal comprises the following stages: application of programmable amplification to a received RF-signal; generation of a signal related to assessment of energy of a received RF-signal; control of programmable amplification on the basis of an energy assessment signal; transformation of a received RF-signal with lower frequency; detection of system time information in a signal transformed with frequency reduction; tuning of a DC component of a signal converted with frequency reduction, with a relatively accurate method; and tuning of a DC-component of a signal transformed with frequency reduction, with a relatively rough method.

EFFECT: invention provides for automatic control of amplification and compensation of DC level in a combined manner in order to guarantee an appropriate level of a signal at an inlet of an analog-to-digital converter, reduction or elimination of a DC level after a mixer.

13 cl, 10 dwg

IPC classes for russian patent Method and system for correction of dc and agc. RU patent 2458457. (RU 2458457):

H04L25/06 - Dc level restoring means; Bias distortion correction

H03G3 - Gain control in amplifiers or frequency changers (gated amplifiers H03F0003720000; peculiar to television receivers H04N)

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