METHOD FOR AUTO GAIN CONTROL IN DIGITAL COMMUNICATION SYSTEM

摘要

PURPOSE: An automatic gain control method at a digital communication system is provided to keep enhanced bit resolution by operating each antenna according to calculated each gain value. CONSTITUTION: A prevarication figure examination unit(301) examines the prevarication figure of two on the receiving data signal. The prevarication figure examination unit examines the prevarication figure of the signal itself and prevarication figure of the signal envelope. A condition inspection unit(302) presently inspects the state of the gain value of AGC by using the prevarication figure of the signal radiated from the prevarication figure examination unit and prevarication figure of the signal envelope. A gain value control unit(303) finally presently controls the gain value according to the decision result of the state of the current gain value above statement.